GY30 3012 4_3704_and_3705_Program_Reference_Handbook_Jun1976 4 3704 And 3705 Program Reference Handbook Jun1976
User Manual: Pdf GY30-3012-4_3704_and_3705_Program_Reference_Handbook_Jun1976
Open the PDF directly: View PDF 
.
Page Count: 312
| Download | |
| Open PDF In Browser | View PDF |
IBM 3704 and 3705
Program Reference
Handbook
GV30-3012-4
IBM Corporation, Publications Center, P.O. Box 12195,
Research Triangle Park, North Carolina 27709
Programs supported by this handbook:
Program Name
Network Control Program/OS, Version 1 (V1M2)
Network Control Program/VS, Version 2 (V2M1)
Network Control ProgramNS, Version 5 (V5MO)
Emulation Program fV3MO)
Handbook
Reference
NCP1
NCP2
NCP#
EP
f!
Summary of Amendments for GY30-3012-4
Previous changes in this manual include:
• Support for Network Control ProgramNS, Version 5.
(Includes NCP 3.2, NCP 4.0, and SDlC/BSC Path Function.)
• Support for Emulation Program V3MO.
• Additional Network Commands.
• NCP exception responses.
• 2848/2260 line character codes.
• EBCDIC line character codes.
• Interface addressing.
f
New information in this manual includes:
• Support for Network Control ProgramNS. Version 5.
• Support for Emulation Program B3MO fold base and new base)
• Type 4 channel adapter
• Type 3 communications scanner.
Fifth Edition (June 1976)
This edition is a major revision of, and obsoletes the previous edition, GY30-3012-3.
Refer to the Summary of Amendments for the changes to this edition. Vertical bars
throughout the manual show where changes have been made.
f
't
Changes are periodically made to the information herein; before using this publication
in connection with the operation of IBM systems, consult the IBM System/370 Bibliography, GA20·0001 and associated Technical Newsletters for the editions that are
applicable and current.
Requests for copies of IBM publications should be made to your IBM representative or
to the IBM branch office serving your locality.
This manual has been prepared by the IBM Systems Communications Division, Publications Center, Department E01, P.O. Box 12195, Research Triangle Park, North Cerolina
27709. A form for reader's comments is provided at the back of this publication. If
the form has been removed, comments may be sent to the above address. Comments
become the property of IBM.
@Copyrlght International Business Machines Corporation 1974, 1975, 1976
(
Preface
L..j This handbook provides the System Programmer and IBM Program Support Representative
,... with reference information about the Network Control Program (NCP) and Emulation
Program (EP). It is designed to provide quick access to often·used diagnostic and debug
information. For a more comprehensive knowledge of a subject, refer to the publications
listed under Related Publications.
Old balJfJ EP modules support the type 1 channel adapter. the type 1 communication
scanner or up to four type 2 communication scanners.
New bIISe EP modules support the type 4 channel adapter and the type 3 communication
I
-
_~scanner
in the 370511.
Additionally, support fs provided for multiple type 4 channel
...,adapters and multiple-subchannel access (MSLA).
This hand,book consists of 18 sections. Sections 1 through 17 contain reference information. Section 18 is an Index. to NCP and EP Reference Material. This index. in addition
to providing page numbers to information in this handbook, points to other IBM publi·
cations containing reference information.
Related Publications
IBM 3705 CommunicatioM Contrail.,., Network Control Program, PLM, Venion 1,
SY3tJ.3003.
IBM 3704 end 3705 CommunicatioM Contrallers, Network Control Program/VS, PLM,
Venion 2, SY30-3007.
IBM 3704 and 3705 Communications Controllers, Network Control Program/VS, PLM,
Verrlon 4, SY30-3013.
IBM 3704 and 3705 Communications Controllers, Emulation Program, PLM, SY30-3001.
(old base)
IBM 370511 Communkations Controller, Emulation Program, PLM, SY30-3031.
(new base}
. " NCP/rCAM Network
Ussr'. Guide, GC30-3009.
GuidelD Usifl/l the IBM 3704 Control Panel, GA27·3086.
Guide ID UsIng the IBM 3705 Control Panel, GA27·3087.
IBM 3704 and 3705 Communications ControllITS, Network Control Program, G""eration
and Utilities, Guide and Reference Manual, GC30-3000.
L::tMBM 3704 and 3705 Communications Controllers, Network Control Program/VS,
. . . .Genoration and Utilities, Guide and Ref8lTNlCtl Manual, GC30-3007.
IBM 3704 and 3705 Communications Controllers, Notworlc Control Program/VS,
Generation and Utilities, Guide and Ref""""", Manual (for OS/VS and OOS/VS VTAM
~,GC30-3008.
.-
IBM 3704 and 3705 Communications Controllen;, Emulation Program, Generation and
.. Utilities, Guide and Refsrence Manual, GC30·3002 .
.
f!
Contents
-
SECTION 1: DATA AREA RELATIONSHIPS • . • . .
U
NCP Control Block Relationships for BSC/SS Lines
NCP#Control Block Relationships for SOLe links
.
.
.
NCP Control Block Relationships for Switched aSC/55 Lines
NCP Control Block Relationships for Switched SOLe Links
NCP Pointers to the eca . . . . . . . .
:l'
NCP Halfward Direct Addressable Pointers . .
~ Locating the NCP Address Trace Table . . .
5
5
6
6
. . Control B lock Relationships for NCP Line Trace
NCP Control Block Relationships for BHRs . .
EP Control Block Relationships· Type 2 Scanner
EP Control Block Relationships· Type 1 Scanner
.
9
Adapter Control Block for NCP .
Adapter Control Block for NCP#
10
SECTION 2: DATA AREA LAYOUTS
" liIACB
WACB
ATB
BCB
BCU
BH
BHO
BHR
BHS
BST
BLU
BTU
BUE
CCB
CCB
CCB
CCB
CGP
CHB
CHB
r;"jCHB
CHCB
CHVT
CIE
COB
COB
COE
i ..
~RP
. m d . Tbl.
CTB
CUB
CYABARSW
OAE
OIA
~
ORS
WOVB
3
4
.
.
"
Address Trace Block.
12
13
Bit Control Block
Block Control Unit .
Buffer Prefix . . .
Block Handler Driver Table
Block Handler Routine Extension to
15
17
1B
ova
19
Block Handler Set . . .
Block Handler Set Table .
Basic Link Unit for NCP# .
Basic Transmission Unit .
Switched Backup Extension to DVB
Character Control Block for EP, PEP
Character Control Block for EP, PEP (DUMMY)
Character Control Block for EP, PEP ILine Test)
Character Control Block for NCP . .
Cluster General Poll Extension to oVB
Channel Control Block (NCP1, NCP2) .
Channel Control Block (NCP#) . . .
Channel Control Block Extension for Secondary Channel
Adapter . . . . . . . . .
Channel Control B lock for EP, PEP.
Channel Vector Table . . . . .
Call·ln Extension to DVB. . . .
Channel Operation Block (NCP1, NCP2)
Channel Operation Block (NCP#)
Call-Out Extension to DVB
21
Check Record Pool . . . . .
Command Table. . . . . .
Communications Line Timer and RAS Control Table.
Common Physical Unit Block
Barswap Table
. . . . . . .
Device Addressing Extension to DVB
Device Input Area . . . .
Display/Refresh/Select Table.
Device Base Control Block. .
70
22
23
24
26
27
34
35
40
4B
49
53
56
58
60
61
62
66
69
73
74
75
78
79
60
81
82
iii
ECB
ECDDT
EBCDIC Character Oecode Displacement Table.
HWe
Extended Halfword Oirect Addressables
99
ICE
IDDT
IDE
IDL
lOB
LCB
LCST
LGT
LGT
LKB
LLG
LNVT
LNVT
LTCB
LTCB
LTS
LTS
LUB
LUV
LXB
OLLTCB
OLLTLAB
OLLTaCB
OLTTCB
PCB
PCF
PIU
PIU
PIU
PIU
PSB
aCB
ace
ace
RVT
RVT
SCB
SGE
SGT
SID
SIT
SOT
SOT
spe
SVT
TND
ICE Routine Address Table.
90
92
93
94
95
B6
Event Control Block.
Interface 0 isconnect 0 ispatcher Table.
Identification list Entry
Identification List Header.
Input/Output Block.
Line
Line
Line
line
Control Block
Control Selection Table .
Group Table for PEP. EP
Group Table for NCP
99 (
Link Control Block ..
Logical Line Group Control Table
Line Vector Table (for Type 1 Scanner)
Line Vector Table (for Type 2 Scanner)
Line Trace Control Block .
Line Trace Control Block (NCP #)
.
line Test Control Block (NCP1, NCP2)
Line Test Control Block (NCP#)
Logical Unit Block
Logical Unit Vector Table.
link XID Control Block
Online Line Test Control Block
Online Line Test Lookahead Buffer.
Online Line Test QCB Control Block for NCP# .
Online Terminal Test Control Block
Panel Control Block.
PCF State Vector Table
Path Information Unit (FIDOI
Path Information Unit (FID1)
Path Information Unit (FID2)
Path Information Unit (FID3)
Physical Services Block.
Queue Contra I B lock for EP
Queue Control Block for Input Queues
Queue Control Block for Work Queues
Resource Vector Table .
Resource Vector Table (NCP#)
Station Control Block
Switched Line Group Entry
Switched Line Group Table
Send ID .
Sub-Area Index Table
Service Order Table for SSC/SS Lines.
Service Order Table for SOLC
SDLC/BSC Path Control Block
Sub-area Vector Table for NCP#.
Time and Data Control Slack
Trace Table (CAl Channel Adapter Trace Table.
Trace Table (Line)
Trace Table (EP, PEP)
Trace Control Table (EP, PEP)
TVS
Time Value Select Table
UCDDT
USASCII Character Decode Displacement Table
iv
B7f~
.
105
106
107
III
113
114
115
'
116{'
117
\
120 . /
121
123
126
127
132
134
135
136
137
138
142
145
148
151
154
157
159
161 (
162
163
164
167
168
169
170
17~\
: I
17
173
./
174
176
177
179
180
1s:t 1
1
185
'
.i
.."
!.,J
Unassigned Subchannel Control Block.
WU
WU Translate Table .
XDA
Word Direct Addressable Storage
Byte Direct Addressable Storage.
XD8
XDH
Halfword Direct Addressable Storage
186
187
188
191
197
SECTION 3: BTU COMMANDS AND MODIFIERS
203
SECTION 3.1: NCP CHANNEL.
209
SECTION 4: NCP#NETWORK COMMANDS.
211
SECTION 5: SDLC COMMANDS AND RESPONSES
219
SECTION 6: EP COMMAND CODES.
221
SECTION 7: BTU RESPONSES
223
System Response Byte .
Extended Response Byte
22~
SECTION 8: NCP# EXCEPTION RESPONSES
231
SECTION 9: 3704 and 3705 I NSTR UCTION SET
233
SECTION 10: INPUT/OUTPUT (EXTERNAL) REGISTER FUNCTIONS.
237
"
'fill
~
"~
223
SECTION 10.1: Modem Lead • .
241
SECTION 11: INTERFACE CONTROL WORD (lCW) .
243
SECTION 12: NCP AND PEP ABEND AND EP HARDSTOP CODES
253
SECTION 13. LINE CHARACTER CODES.
261
ASCII Character Code (Even Parity)
ASCII Character Code (Odd Parity) .
Baudot Character Code.
BCD Character Code 1 .
BCD Character Code 2 .
Correspondence Character Code 1
Correspondence Character Code 2
EBCD Character Code .
EBCDIC Character Code
IT A2 Character Code
KAT AKANA Character Code
Data Interchange (TWX) Character Code 1
Data Interchange (TWX) Character Code 3
ZSC3 Character Code
261
262
263
264
265
266
267
268
269
270
271
272
273
274
SECTION 14: EXAMPLES OF POLLING AND ADDRESSING
275
1030 Polling and Addressing
2740 Polling and Addressing
Telegraph Terminals.
275
276
277
Models 33 and 35 Teletypewriters
BSC Terminals
278
279
SECT10N::;5: MDR RECORD FORMATS
281
SECTION 16: EP STORAGE MAP.
291
SECTION 17: INTERFACE ADDRESSING
293
SECTION 18: INDEX TO NCP AND EP REFERENCE MATERIAL.
297
~d\
f
{)
vi
Figures
'~
'w
1.
2.
3.
4.
5.
6.
7.
8.
~
R
10.
II.
NCP Control Block Relationships for BSC/ss Lines
NCP# Control Block Relationships for SOLC Links
NCP Control Block Relationships for Switched BSCISS Lines
NCP Control Block Relationships for Switched SDLC Links.
NCP Pointers to the CCB
NCP Halfword Direct Addressable Pointers
Locating the NCP Address Trace Table.
Control Blocks Relationships·for NCP Line Trace
NCP Con'tTol Block Relationships for·BHRs .
EP Control Block Relationships - Type 2"Scanner
EP Control Block Relationships - Type 1 Scanner
3
3
4
5
5
6
6
vii
f)
t:
(
(0
C
(;
(/
SOT
ACB
"
(
g>
LGT
A
ci"
::l
..
0
!:
--,I
BeB
I
I
I
L __ -,I
»
ii
"a
CD
c·
~
::l"
'-a"
"
S
>
Ii
if
i
!;-
~.
r---.,
I
!-Optionalcontrol
L__ .J
block
Figure 1. NCP Control Block Relationships for BSCISS lines.
'"
~
l!
PlU
'!lCo
~
'"
."
~3
it'"
~
g
iF
5.
g-
o
o
""
/.'~igure 2. NCP#Co[l~I\Block Relationships for SOLe Links.
/""".
/"""'.
"f'
0"'
Basic Call·
Configurat ion
DVBl~lIo""
If
(
cca Vector Table
SGT
800
dialpon
SGESSGP
COESGTP
SIDIOPTR
,>-
t"\)+
1'\(
Lca
SGT
I
lCBACBP
SGELCBP
LC/:
SGElCBP
DVBICall·'n'
(
DVBPTR
Call·inwith
10 Exchan g'
CIEIDl
CIEIDPTR
r
ID
V
IOBlCB
(
Hardware 10
10L
10
10
10
10
ACB·2
ACB !Hne}
J\(
L
_L
~
Lca
lCBACBP
lJ
Aca{U""D
IOBlCB
Lca'7
Call·inwith
Multiple
Terminal
Figure 3. NCP Control Block Relationships for Switched BSC/SS Lines.
Figure 4. NCP Control Block Relationships for Switched SOLe Links
Data Area Relationships
3
(
f;
(
Figure 5. NCP Pointers to the eea
4
3704 and 3705 Program Reference Handbook
X'0700'r'=---
ACB
ACB
CCB
CCPOHl
CCBLlNK
CCPQH2
CSPQHl
CSPQH2
TIMH2
'Figure 6. NCP Halfword Direct Addressable Pointers
~
Address shifted right
two bit positions.
Figure 7. Locating the NCP Address Trace Table
Data Area Relationships
----..,
I
I
LTCB{Recl
I
I
CCTHD8UF
thetransmitleg'$
LTC8foH
For a duplu
.....line.
lha
feCIIi .. 18II'$LTCB.
~~L~Tceilx~m;~"~~~~1~::=l
Figure 8. Control Block Relationships for NCP Line Trace
~
~
(
lOST
OFFSET
V
1\
taHs
ISH"
'-.
Point 3
~
BHR
ceB
tPT18H
IBH.Rext8nsion
tPT2BH
tPT3BH
C~(81oc:khandlerdrivertablel
t8HR
7
'-....
7
eN
FLG
tBHR
eN
FLG
eNT
FLG
-........
IBHS
"tPARAM
PARAMBYTE
r-
---
~
"
~ (Block handler driver table'
eNT
FLG
tPARAM
f7P~~~
t BHR
'-....
J
Figure 9. NCP Control Block Relationships for BHRs
Handboo~
eNT
FLG
{
tPARAM
(~¢~~M
(
'-.....
J
3704 and 3705 PrQgram Reference
-........
"
taHS
- 8HR$ have either a pointer to I parameter
list or I byte paremeter Inthelrentrv in
thIBHD.
6
~t8lOCkhandlerdrivertable)
tBHS
tBHSET
eNT
FLG
r
~
1'-.....
J ,
Figure 10. EP Control Block Relationships' Type 2 Scanner
Figure 11. EP Control Block Relationships· Type 1 Scanner
Data Area Relationships
(
Section 2: Data Area Layouts
The following conventions are used in this section:
• Various versions of the network control program are referred to in the following
manner:
NCP1 - Network Control Program/OS, Version 1 (for OSIMFT and OS/MVT
TCAM users)
NCP2 - Network Control ProgramNS, Version 2 (for OSNS TCAM users)
NCP# - Network Control ProgramNS, (for OSNS and DOSNS VT AM users.
latest version)
NCP - All versions of the network control program.
If a field or bit is not used by all versions of the NCP, the version or versions that use
it are shown in parentheses after the field or bit description. For versions not listed,
the field or bit is unused.
• The displacement of each field from the beginning is given in both decimal and
hexadecimal notation (hexadecimal in parentheses). The displacements in the direct
addressable areas (XDA, XDB, and XDH) are given in absolute, hexadecimal notation
since these are always in a fixed location of storage.
• If a single field has dual uses with different labels according to the use, the displacement is listed only once, and a broken line followed by the word "or" is inserted
between the different labels.
• The contents of some fields are designated as shifted addresses. This means that in
3705 configurations larger than 64K, the storage address is shifted right two bit
positions before being placed in the data area.
Shifted addresses are always in field with a defined length of two bytes. If the controller has less than 64K bytes of storage, the address is not shifted.
• Pointers or addresses contained in fields with a defined length of four bytes occupy
the last 18 bits of the field. (Only the last 16 bits are significant if controller storage
is less than 64K.) Often byte 0 and the first six bits of byte 1 of these fields are used
for other purposes, such as for flags. In cases such as these, the four-byte field is
shown as follows:
8(8)
XYZISKEP
Task entry point (last 18 bits)
XYZMCBAD
Major control
block displacement.
9(9)
-,-Task
- XYZSCHED
- - - - -,
di~p~tching
Priority.
• Labels shown in parentheses are equated in NCP and EP code to the defined label for
a field. Equated labels are most frequently used in the direct addressable areas.
• One field in every queue control block IOCB) is labeled "major control block displacement". This field contains the offset to the beginning of this aCB from the
beginning of the control block that contains the aCB. For example, the DVIMCBD
field contains the displacement from the beginning of the device base control block
IOVB) to the beginning of the device input OCB.
• Bit patterns or hex values within a field are defined in a byte expansion table following the formatted data area. The bytes within a field are numbered from zero origin .
.FQr ex~mgJe. if the first byte in a two-byte field has a unique definition, it is referred
1 • ~~sf~¥~'~te expansions that are not identified are reserved.
Data Area Layouts
9
ADAPTER CONTROL BLOCK
Prograril: NCP
Size In bytes: 9O(6A) for NCP1; 92(5C) for NCP2, NCP#.
Created by: NCP generation.
Pointer to ACB: LCBACBP field in LCB, or ACB vector. The ACB vector is located by
doubling the line address, then adding X'800".
Function: Contains line control information and the status of I/O operations for BSCISS
lines.
3('3)Ret'Y count fori ·2(·2)
dial-out.
"
\0(0)
136(24)
I
Address of dial-out line for auto call
Input/Output Block (lOB)
Character Control Block (CCB)
(
10
3704 and 3705 Program Reference Handbook
ADAPTER CONTROL BLOCK
ACB
(SDLC)
Program: NCP#
Siz. in bytes: 92(SC)
Created by: NCP generation.
Pointer to ACB: LKBACBP field in LKB. If it is a duplex link, LKBACBP points to the
receive leg AeB, and lXBXACBP in the receive leg's ACB points to the transmit leg's
ACB. The ACB vector (or BAR vector) is located by doubling the line address, then
adding X'SOO'.
Function: Contains line control information and the status of I/O operations for SOLe
links.
1
1 ·3(.3)
Dial retry count.
·2(·2)
BAR address for dial-out line.
0(0)
1
Link XIO Siock (LXB)
36(24)
Character Control Block (eCB)
Data Area Layouts
11
ADDRESS TRACE BLOCK
ATB
Program: NCP
Size in bytes: 32(20)
Created by: NCP generation.
Pointer to ATB: SYSATBP field in HWE.
Function: Governs the operation of the address trace function executing in level 1.
0(0)
ATBPRMS
Addresses of trace variables (16 bytes).
Parameter 1
4(4)
Parameter 2
8(8)
Parameter 3
12(C)
Parameter 4
16(10)
18112)
ATBFRST
ATBPREV
Address of first entry in trace table
Address of last entry used in trace table
(CXTATPF). (Shifted address.)
(CXTATPL). (Shifted address.)
20(14)
22(16)
ATBLAST
ATBCNTR
Address of last entry in trace table.
Number of interrupts processed.
(Shifted address.)
24(18)
ATBPRCT
125(19)
ATBCTL
No. of variables
in each trace entry.
Address trace
control byte.
28(1C)
26(IA)
ATBLVLS'
Program levels
r
7 (IB)
Reserved
to be traced.
30(1 E)
ATBIN
ATBBR
Prototype input instruction.
Prototype branch instruction.
·Indicates a byte expansion follows.
Byte ExpansioM
Off1etIField Nom.
26(IA)
ATBLVLS
Bit Petternl
Hex Value
X'BO'
X'40'
X'20'
X'10'
i:2·
Contents
Program levels to be traced.
Level 2.
Level 3.
Level 4.
Level5.
3704 and 3705 Program Reference Handbook
BCB
BIT CONTROL BLOCK
Program: Nep, EP
'..iJ
Size in bytes: 16(10)
Created By: NCP and EP generation.
Pointer: CCBBCB field in CCB(NCP) or CYACHENO field in CHVT(EP).
Function: Contains control information for the type 1 scanner. One 8eB is created for
each line connected to a type 1 scanner.
.
0(0)
2(2)
BCBACB
ACB address INCP) or
CCB address (EP).
BCBLlNK
Pointer to next 8CB.
4(4)
7(7)
6(6)
BCBSCF
Sec. control
BCBL2
Bit service routine address.
BCBPOF
Parallel data tid.
field.
8(8)
BCBVCT
High byte of
10(A)
9(9)
BCBLCPCF*
LCD and PCF
BCBSOF
Serial data field (10 bits, left justified).
PCF vector table
addr.
14(E)
BCBSYNC (BSC)
Sync character.
12(C)
BCBMASK*
Transmit/receive mask
15(F)
BCBSHIFT
Start-stop shift
count.
BCBBMASK*
(SS)
Transmit
break mask.
*Indicates a byte expansion follows.
Byte Expansions
Bit Patternl
. Off..t/Fleld Name
HexValua
Contents
LCD and PCF.
9(9)
BC~LCPCF
100 •
101 •
110_
011 •
111.
....
....
....
....
....
...x xxx.
....
•• -X
LCD field (bits 0-2).
Start-stop.
BSC.
Dial.
SOLC
Feedback check
PCF (See ICW for PCF expansion_)
PCF change bit:
1 = same PCF
0- newPCF
Data Area Layouts
13
BCB
Bit Patternl
I
OffootlFieId Name
12(C)
BCBMASK
14(E)
BCBBMASK
I
15(F)
BCBSHIFT
HoxVallIO
Con1ents
Transmit/receive mask.
X'OlOO'
X'OIOO'
X'OI00'
X'OOCO'
X'0060'
X'0060'
X'OI00'
X'OI00'
X'0300'
SOLe
esc EBCDIC.
eSCUSASCIi.
Start-stop 9/6.
Start-stop8!5.
Start-stop 9n.
Start-stop 1On.
Start-stop 10/8.
Start-stop 11/8.
Transmit break mask. (SS)
X'10'
X'20'
X'20'
X'40'
X'40'
X'7E'
X'8O'
Start-stop8!5.
Start-stop 9/6.
Start·stop 9n.
Start-stop 1On.
Start-stop 10/8.
SOLC Flag mask
Start-stop 11 /8.
Start-stoP. shift count
No stop-bit error.
Stop-bit error encountered (55).
Character service not requested .
Character service requested •
0 •.•
1. ..
....
....
....
....
....
....
....
....
.0 ..
.1. .
· .0 .
..1 .
· ..0
..• 1
.... 0 ...
.... 1. ..
....
....
....
....
....
xxx .
••• X
.0 .•
•.0 .
. . 1.
.. .0
... 1
....
....
· , .. x.,.
....
14
. .xx
No character overrun/underrun.
Character overrun/underrun occurred .
No modem error.
Modem error enoountered (OSR, CTS, TTY) .
carrier detect lead not up.
Carrier detect lead up (required if receiving),
No frame detection .
Store data character•
00 not store data character.
Character is not a pad •
00 not send start bit (SSI .
SOLC stop shift count
Ones counter
Last line state
1 = Mark
o=Space
NRZI control
1 =NRZI
0= NotNRZI
Reserved - Character bits
00 = SOLC 8 bit
3704 and 3706.Program Reference HaOdbook
BCU
BLOCK CONTROL UNIT
Program: NCP
.",;
Size in bytes: 20(14) control bytes plus BTU
Located in: Dynamic buffers.
Created by: Built by channel IOCS when a block is received from the host (NCP1, NCP2).
Built dynamically by internal routines (Nep#).
Function: To request work.
Buffer Prefix
0(01
BCBUFCHN
Buffer prefix chain field. (Shifted
address.)
Event Control Block
4(41
15 (51BCUESTAT'
BCUSTAT'
Block status
6(61
BCUECHN
ECB chain pointer.
Event status
flags.
flags.
8(81
10(AI
BCUECHN(BCUBKLNGI
BCUWaC8
Set time interval, as specified by
SETIME macro.
Address of waiting task's input aCB.
or
BCUTCNT
BCU text count.
Work Area
12(CI
-----l
BCURVTE
Address of RVT entry (last 18 bits).
BCUREDS
BCUFLAGS'
Record descriptor.
Critical text
flags to channel
output,
16(101
18(121
BCUTDSP
BCUSSP
Get byte/put byte displacement
Subtask sequence pointer for suspended
value.
sessions.
20(141
See "Basic Transmission Unit (BTU)" for format. (Variable in length)
.",
*Indlcates a byte expanSion follows.
Data Area Layouts
15
BCU
Byte Expansions
Bit Pattern!
Offset/Field Name
Hex Value
4(4)
BCUSTAT
1 ...
. 1 ..
5(51
BCUESTAT
1 ...
. 1 ..
13(01
BCUFLAGS
1 ...
.1. .
.. 1.
Contents
Block status flags.
Block enqueued.
Buffers in block are counted .
Event status flags.
Event is satisfied.
Task is to be dispatched .
Critical text flags to ~hannel output.
Clear data in release blocks.
Replace-session·initiation-information
restart mode.
Check mode for replace·session-initiationinformation.
f
(
(
"
16
3704 and 3705 Program Reference Handbook
BUFFER PREFIX
BH
Program: NCP
~ize in bytes:
4(4)
Located in: The beginning of each buffer.
Created by: Any routine that uses the LEASE macro to get a buffer.
Pointer to BH: Variable,
(~~unction:
~
Chains buffers in a BCU and points to the beginning of the text data within
single buffer.
0(01
2(21
BHBUFCHN*
Pointer to next buffer in this chain.
(Shifted addressl.
3(31
BHOFFSET*
Offset to beginning
Text data count (for
of text in
this buffer only),
BHDATCNT*
this buffer.
~see the block control Unit (BCU) for labels used
In
the first buffer of a BCU.
Data Area Layouts
17
BLOCK HANDLER DRIVER TABLE
BHD
Program: NCP
Size in bytes: 8(8) per entry; total size of table is variable.
Created by: NCP generation.
Pointer to BHD: BHS
Function: Defines the block handling routines that are to be executed for a particular
block handler.
Entry Format
0(0)
BHDRTNP
Pointer to block handling routine (last 18 bits) .
. . BHDci-'
1
Entry etl byte 1.
4(4)
BHDPARMP
Pointer to parameter list (last 18 bits).
. . BHDc:i·'
Entry ctl byte 2
'1
*Indicates a byte expansion follows.
Byte Expamions
OffsetIFieid Name
Bit Patternl
Hex Value
0(0)
BHDCl
1. ..
. 1. .
Contents
Entry control byte 1.
End of table (last entry).
User BHR .
Receive control if command is in error.
... 1
Entry control byte 2.
4(4)
BHDC2
1. ..
.1. .
.. 1.
1. ..
.1. .
7(7)
BHDPARMB
1 ...
.1. .
. . 1.
... 1
1. ..
. 1. .
...1.
Receive control for Reacl.
Receive control for Invite .
Receive control fOT Write.
Receive control for Disconnect.
Receive control in terminator-subtask for
Read 1/0.
Byte parameter (for date/time).
Date desired.
Calendar form of date desired .
Julian format of date desired.
Gregorian format 1 of date desired .
Gregorian format 2 of date desired.
Time desired.
Date/time stamp first ~_Io~ of message.
(~
~c'
-..:",,::'!j
(
18
3704 and 3705 Program Reference Handbook
BHR
BLOCK HANDLER ROUTINE EXTENSION TO DVB
Prognm: NCP
>J.ize in bytes: 24{IB)
Located in: DVB
Created by: NCP generation.
Pointer to BHR: DVBBHRO field in OVB.
_ Function: Associates block handler routines with a device.
Q
rO-(O-)~**~------------------------------------------1
BHRBHST
Pointer to BHS (last 18 bits).
BHRCTL*
BHR control
flags.
Point 3 QCB (BHRBH3Q)
(See aCB for Input Queues for all bit definitions.)
4(4)**
616)**
BH31ECB
BH3LECB
Pointer to last BCU queued. (Shifted
address.)
Pointer to first BCU queued.
(Shifted address.)
B{B)**
BH3STAT
19 (9)**
BH3PRKEY
Task and queue
Protection key.
10(AI**
BH3L1NK
Pointer to next OCB in chain. (Shifted
address.l-
status.
12(C)**
...... J.- _..
BH3TSKEP
Task entry point lIast 18 bits) .
BH3MCBO
Major control
block displacement.
13{D)
BH3SCHED
Task d.isp,atching
Priority.
16{10)**
18{12)**
BH3SAVE
BH3LUNK
Pointer to previous acB on the queue.
{Shifted address.l
Address of save area pushdown
list. (Shifted address.)
20(14r**
BH3BHSET
. . . -.. \'.. ---. J
BH set (or BHR) address (last 18 bits) .
BH3BHRST
BHR status bits.
21(15)
BH38HSET
BHR scheduling bits.
*
Data Area Lavouts
19
BHR
Offset/Field Name
0(0)
BHRCTL
Bit.Patternl
Hex Value
Contents
BHR control flags.
1. ..... .
. 1. .
.. 1.
... 1
1 ...
Execute 8HR -If a 8HR was specified as
dynamic, specified initially as inactive, or
deactivated by operator control, this bit
will be off.
Point 1 . specifies point 1 BHR execution .
Point 2 - specifies point 2 BHR execution .
Point 3 - specifies point 3 BHR execution .
Point 3 - Block Handler Routine queue
control block exists for device. This aCB
is created by defining PT3EXEC=YES or
BHEXEC=:ALl. For dynamic block
handlers that have a point 3, there must be
a point 3 BHRQCB.
f
(
20
3704 and 3705 Program Reference Handbook
BLOCK HANDLER SET
Program: NCP
Size in bytes: 12(C}
Created by: NCP generation.
Pointer to BHS: BSTBHSPT field in BST.
Function: Points to the block handlers that are to be executed for the block handler
set.
O(O}
BHSPl
Pointer to point 1 block handler driver table (BHD).
4(4)
BHSP2
Pointer to point 2 BHD.
8(8}
BHSP3
Pointer to point 3 SHO.
Data Area Layouts
21
BLOCK HANDLER SET TABLE
BST
Program: NCP
Size In bytes: 4 bytes per entry; table can contain up to 256 entries.
~'I
Created by: NCP generation.
Pointer to BST: SYSBST field in XDA.
Function: Points to block handler sets (one entry per BHS).
0(0)
BSTBHSPT
Address of BHS (last 18 bits). (For the first entry, bytes 1·3 contain
zeros.)
BSTCTL*
BH R control flags.
(For the first entry.
this byte contains the
count of BH set
pointers in the table.)
*Indicates a byte expansion follows.
Byte
~;
',-
E~nsions
Bit Patternl
Offset/Field Name
HexValU8
Contents
1. ..
.1. .
. . 1.
... 1
Point 1.
Point 2 .
Point 3 .
0(0)
BSTCTL
BHR control flags.
Execute.
(
22
3704 and 3705 Program Reference Handbook
BLU
BASIC liNK UNIT
Program: NCP#
;."J
Size in bytes: PIU + 6 bytes
Function: This is the SOLe transmission block
SOLe line Control
PIU
3(3)
Path I nformation Unit
(See PIU 0-1~2 for desaiption.)
SOle Line Control
Block Check
Character
(Bec) (2 bytes)
·Indicates byte expansion follows.
Bit Patternl
Offset/Field Name
2(2)
Hex Value
0111 1110
Function
Indicates beginning or end of BLU.
Control"'" Format
xxx.
Receive count sequence.
Poll/final bit .
•• • X
xxx.
Send sequence count.
•• •X
O=lnformation transfer BLU .
"~IIForm8t
Receive sequence count.
x~x.
...x
xx ..
..01
Poll/final bit .
OO==Receive ready (RR)
01=Receive not ready (RNRl
10=Reject
Supervisory BLU
"NS" Format
xxx. xx ..
..•. x ••..
.•.. .•11
Non sequenced command or response
Poll/final bit
Nonsequenced format
Note: See Section 5 for descriptions of SO LC commands and responses.
Data Area layouts
23
BASIC TRANSMISSION UNIT
BTU
Program: NCP
Size in bytes: 14{E) control bytes + variable length text.
Located in: BCU
Created by: The host access method (NCP1, NCP2) or an internal NCP routine (NCP#).
Pointer to BTU: None. The starting byte is at displacement 20(14) into the BCU.
Function: Contains information for either a request for 110 or for a control operation;
or a response for the same.
20(14)**
22(16)
BCUSID
(BCHSID)
Source name.
BCUOID
(BCHOID)
Destination name (resource 10).
24(18)
26(lA)
BCUSRES
(BCHSRES)
BCUseQ
(BCHSEQ)
Request tag or sequence number
identifying this BTU.
28(lC)
BCUCMD*
(BCHCMD)
Command
29(10)
BCUMOD
(BCHMOD)
Command modi~
27(18)
BCULRES
(BCHLRES)
System response.
See Section 7
Extended response.
for responses.
110 operation. See
Section 7.
30(lE)
BCUSFLAG*
(BCHSFLAG)
Function flags.
Contains status of
31(lF)
BCHBDUF*
BTU flags.
fiers. See Section
3 fora list of
the BTU
com-
mands and their
modifiers.
32(20)
34(22)
BCUTLEN
(BCHTLEN)
Text length.
Text field.
(Variable length.)
* Indicates a byte expansion follows.
**Displacements represent the offset into the BCU.
(
24
3704 and 3705 Program Reference Handbook
Byte Expansions
Offset/Field Name
,
'.wi
2B(IC)
BCUCMD
(BCHCMD)
Bit Pattern/
Hex Value
X'OO'
X'OI'
X'02'
X'03'
X'04'
X'OS'
X'06'
x'or
X'OB'
~
x'n'
Anya;ther
30(IEI
BCUSFLAG
(BCHSFLAG)
... 1
31(IF)
BCHBDUF
Null.
Read (R).
Write (W).
Online test (T).
Restart (V). (NCP1, NCP2)
Invite (I).
Contact Ie). (Modifier byte must be zero.)
Disconnect (0).
Control (Z).
Unsolicited response.
Invalid.
. 1 ..
•. 1.
.•. 1
Function flags.
Checkpoint select (control commands) or
start of header.
Header prefix .
Suppress Invite (control commands) or
leading graphics.
First block of message .
Transparent data.
Positive acknowledgement .
Negative acknowledgement .
Alternate acknowledgement .
.1. .
.. 1.
Suppress write response .
Selective text return
1. ..
. 1 ..
.. 1.
.,
Contents
Command. (See Section 3 for descriptions.)
,...
BTU flags.
Data Area Layouts
25
SWITCHED BACKUP EXTENSION TO DVB
BUE
Program: NCP
Size in bytes: 4(4)
Located in: OVB
Created by: NCP generation.
Pointe'to BUE: OVBBUO field in OVB.
Function: Contains control information for devices that Can be contacted over a
separate line when the current line fails .
.---__.--_______--,f
1(1)
BUEPLCBP
Primary LCB
inter.
*Indicates a byte expansion follows.
Byte Expansions
Offset/Field Name
::~:,::I
BUEFLAGS
1. ..
Contents
~O~(~O~)--~--------t----------+'F~I.-g~b-y~te--------------------~
. 1 ..
.. 1.
... 1
26
Service seeking skip when the device is on a
multipoint line.
Error occurred in dialing out.
Invite pending remembrance .
Back up in progress.
3704 and 3705 Program Reference Handbook
t~
CHARACTER CONTROL BLOCK
CCB
(EP, PEP)
!'togram: EP, PEP
Size in bytes: 38(26) for each start-stop line.
44(2C) for each BSe line.
Located: SLVL5
Created by: NCP and EP generation.
- Updated by: LCP, ICP_
Pointer to CCB: LNVT
Referenced by: LCP, ICP, CHVT.
Function: Contains current information on the physical operation of a line. One
eea
is generated for each line specified.
0(0)
CCBOATA
(CCBSUB1)
Data Buffer 0
4(4)
CCBOATAl
Data Buffer 1.
10(A)
8(8)
CCBSVLNK
CC8S0LNK
Data service queue forward chain
Status out queue forward chain pointer.
pointer.
12(C)
CCBSU8CH
Multiplexer sub·
channel address.
13(0)
CC8BTLCO
Type 1 LCD for
14(E)
15(F)
CCBSTAT*
CCBSENSE*
Final line status byte. Final line sense byte.
set PCF line use.
1------***CCBCFLG*
Configuration Flags
16(10)
CCBCMD
Current command for eCB.
~ I
17(11)
CCBLRI*
Line request information, 5 bits.
18(12)**
CCBCSTAT
21(15)
CCBSVSTC*
22(16)
CCBCLOCK
Service/status
flag byte.
Timer control
20(14)
CCBCAC*
Character ad·
24(18)
CCBACADR
I
19(13)**
CCBCSENS
Current sense
(See Section 6.)
dress counter.
W
Current status.
field.
26(lA)
CCBOPT*
CCB option byte 1.
Autocall address.
* Indicates that a byte expansion follows.
**For byte expansion of CCBCSTAT, refer to CCBSTAT.
For byte expansion of CCBCSENS, refer to CCBSENSE.
***EP having a type 4 CA and NCP#with PEP.
23(17)
CCBTMADR
Timeout routine
displacement into
branch table.
27(lB)
CCBOPT2*
Option byte 2.
Data Area Layouts
27
CCB
(EP, PEP)
28(1C)
CCBSTMOO'
Set mode byteOutput X'46'
29(10)
CCBLCD'
Line control definition (LCD) field.
(High 4 bits contain
line control definer;
low 4 bits
contain 0.)
Start/Stop Extension
3O(1E)
CCBLRC
55 longitudinal
redundancy
31(1F)
CCBSSC'
S5 control flags
byte.
check byte.
32(20) (Note 1)
CCBPEPFL'
PEP flags
34(22)
CCBLGT
SS line group table pointer.
-CCBSScX'--l
S5 control flags
extension
36(24)
38(26)
CCBL2
CCBCHAD R (Note 2)
Channel control block pointer
Level 2 interrupt address.
"'Indicates that a byte expansion follows.
Note 1: CCBPEPFL is a halfword when EP is used having a type 4 CA and NCP#.
Note 2: Used with EP having a type 4 CA and NCP#.
Binary Synchronous Extension
3O(1E)
CCBBCC
BSC block check characters
CCBBCC1
BSC block check
character 1.
3i(1'F!
CCBBCC2
BSe block check
character 2.
32(20)
CCBPEPFL'
PEP flags.
36(24)
CCBL2
Address of current level 2 character
34(22)
CCBSYN
BSC EBCDIC or
USASCII Syn
character.
35(23)
CCBEOT
BSC EBCDIC or
USASCII EOT
character.
38(26)
CCBFLGB1'
Flag byte 1-
39(27)
CCBFLGB2'
Flag byte~terminal type.
service routine.
40(28)
r-CBL2A1
.
status.
42(2A)
1.ost datarouting.
Indicates a byte expansion follows.
28
CCBDLCOM
eeB address if dual communications
feature is installed (2701 emulation only) .
3704 and 3706 Program Reference Hanclbook
{
CCB
(EP, PEP)
Binary Synchronous Extension
EP having a type 1 CA, and NCP#
3O(IE)
CCBBCC
sse block check characters
-------:- "3iTiF)-----
1
32(20)
CCBPEPFL*
PEP flags.
Unused for EP standalone
CCBBCC2
BSC block check
34(22)
CCBSYN
BSC EBCDIC or
USASCII Syn
35(23)
CCBEOT
BSC EBCDIC or
USASCII EOT
character 2.
character.
character.
36(24)
~
CCBBCCI
BSC block check
charac1er 1.
CCBL2
Address of current level 2 character
service routine.
39(27)
CCBFLGB2*
Flag byte 2-
3B(26)
CCBFLGB1*
Flag byte 1-
terminal type.
status.
42(2A)
40(2B)
CCBL2Al
Lost data routing.
CCBDLCOM
cca address if dual communications
feature is installed (2701 emulation only).
·Indicates a byte expansion follows.
Binary Synchronous Extension (type 2 scanner)
EP having 8 type 4 CA, and llicp#
3O(IE)
CCBBCC
~ _ _ !.S£~~~e~~~~e~ ___
31(IF)
CCBBCC1
CCBBCC2
BSC block check
BSC block check
character 1.
character 2.
32(20)
'-
CCBPEPFL*
PEP flags.
34(22)
CCBSYN
BSC EBCDIC or
USASCII Syn
character.
36(24)
35(23)
CCBEOT
BSC EBCDIC or
USASCII EOT
character.
38(26)
CCBL2
CCBCHADA
Address of current level 2 character
Channel control block pointer
I
service routine.
.~
38(26)
CCBFLGB1*
Flag byte 1-
status.
40(28)
CCBFLGB2*
Flag byte 2terminal type.
CCBL2Al
Lost data routing.
42(2A)
CCBDLCOM
CCB address if dual communications
feature is installed (2701 emulation only).
-Indicates a byte expansion follows.
~
Data Area Layouts
29
Station Select Feature Extension (type 2 scanner)
.
CCB
(EP, PEPI
EP having a type 4 CA, and NCP #
:
46(2EI
CCBSAOR
47(2FI
CCBGAOR
Poll or select
Group selection
address
address
Binary Synchronous Extension (type 3 scanner)
f"
EP having a type 4 CA, and NCP#
3O(TEI
'CCBTBUF
First extended buffer address
32(201
34(221
CCBPEPFL *
PEP flags.
36(241
CCBL2
Address of current level 2 character
service .routine.
40(281
CCBFLGB'* 1411291
CCBFLGB2*
Flag byte 1Flag byte 2terminal type.
status.
44(2CI
CCBOLCOM
CCBBBUF
Second extended buffer address
38(261
CCBCHAOR
Channel control block pointer
42(2AI
CCBBCNT
Second buffer
count
46(2EI
CCBCAB*
CCB address if dual communications
Channel adapter
feature is installed (2701 emulation only).
flags
48(301
CCBIS
Index save byte
I
~,.;
43(2BI
CCBTCNT
First buffer
count
47(2FI
CC8BUFSZ
Buffer size
(Reservedl
·Indicates a byte expansion fol.lows.
f~·
30
3704 and 3705 Program Reference Handbook
CCB
(EP,PEPI
Station Select Feature Extension (Optional)
i-o 44(2C)
-
CCBSADR
45(2D)
CCBGADR'
Station selection
Group selection
address and station
address.
poll address. These
two addresses
differ in bit position 2.
Wlndieates that a byte expansion follows.
Byte Expansions
Bit Patternl
Offset/Field Name
14.(E)
CCBSTAT
15(F)
CCBSENSE
Hex Value
Contents
Final line status byte.
X'OO'
X'OI'
X'02'
X'04'
X'OS'
X'OC'
X'OD'
X'OE'
X'10'
X'20'
X'40'
X'4C'
Reset status byte.
Set UE.
SetUC.
Set DE.
SetCE.
SetCE, DE.
Set CE, DE, UE.
Set CE, DE, UC.
Set CU busy.
Set control unit end.
Set SM.
Set CE, DE, SM.
X'SO'
Set attention.
X'OO'
X'OI'
X'02'
X'04'
X'OS'
X'10'
X'20'
X'40'
X'SO'
Reset sense byte.
Time-out
Set lost data.
Set overrun.
Set data check.
Set equipment check.
Set bus out parity check.
Set intervention required.
Set command reject.
1 ..... ..
Set interface disconnect flag.
Set data end flag .
Final line sense byte.
Line request information.
17(111
~ CCBLRI
I
"
.... 1 .. .
.... .yxx
y=buffer (0 or 1I
xx"'number of bytes requested from or
presented to the channel.
20(141
CCBCAC
Character address counter.
x'or
ResetCAC.
.... 1. ..
Set BSC inhibit store flag .
X'B8'
X'4S'
Set data service (buffer 0) + data end.
Set data service (buffer 1) + data end.
Set SVI and SVO bits.
ServicelStatus flag byte.
:ill (151
~CBSVSTC
X'CO'
Data Area Layouts
31
CCB
(EP, PEP)
Bit Patternl
Offset/Field Name
26(IA)
CCBOPT
Hex Value
Contents
eeB option byte 1.
1 ...
.1. .
Auto call option installed.
Long disable time-out.
.. X.
Dualcom interface A==O
.. 1.
... 1
Not unit exception on EOT(lBM 88) .
Ring option installed .
~__ \
'! -
B=I(BSC).
1 ...
.x . .
.. 11
27(IB)
CCBOPT2
28(IC)
CCBSTMOO
Switched line installed.
Duplex line installed; O=half, l=full .
Type 2 scanner highest interrupt priority .
eeB option byte 2.
1 ....
Channel decode IBM type 1 and type 2
EOB.
. 1. .
. . 1.
... 1
Trace active for this line .
Channel decode IBM type 3 ETX .
2702 or 2703 .
1 ...
. 1 ..
58 no OeD security monitor.
World Trade telegraph .
.. 1.
... 1
Not long line quiet time-out (25.6 seconds). cIBM modem flag (option I, SS only).
~,
Set-mode byte, Output X'46'.
Type one scanner low bit service priority.
1. ..
. 1 ..
.. 1.
Diagnostic Wrap mode.
Data terminal ready,
Binary sync clock.
... 1
1 ...
. 1 ..
.. 11
External (data set) clocking.
Data rate select.
Oscillator select .
Line control definition (LCD).
0000
0010
0011
0100
0101
Olio
0111
1100
1101
1111
32
r
55 9/6 (1 start, 6 data, and 2 stop bits).
SS 8/5 (TTY 1· 83B3, lISA).
Autocall LCD.
SS 9n (IBM type 1).
SS IOn.
SS 1018 (2848).
SS 11/8 (TTY2 . TWX models 33/35).
sse EBCOIC.
BSC USASCII.
Feedback check.
3704 and 3706 Program Rbference Handbook
CCB
(EP, PEP}
"
W
OffsetlField Name
31(IF}
CCBSSC
W
Bit Patternl
Hex Value
000.
001.
010.
100.
110.
... 1
1 ...
. 1 ..
.. 1.
Contents
Start-stop control flags byte.
TTY2 type line.
2848 type line.
TTYl type line.
IBM type 1 lin••
IBM type 2 line.
Bypass LRC (IBM type 1 and 2); not upshift
(TTY 1 and 2).
Not immediate end (no line quiet pad check).
L.ower case remember .
Not text in (IBM type 1 and 2); not Figs H
(TTY2).
... 1
..,
32(20}
CCBSSCX
(SS)
32(20}
(BSC)
CCBPEPFL
33(21}
(SS)
38(26}
CCBFLGBI
Start-stop control flags extension.
.... ... 1
Half duplex link on which break is allowed.
Byte 0
PEP Flags.
Reserved.
BVte 1
x ... ....
O=NCPACB.
I=EP CCB.
CCB flag byte l·statu •.
1 ...
. 1 ..
.. 1.
... 1
Channel priority.
EIB mode .
Not new sync .
Interrupt mode.
1 ...
. 1 ..
.. 1.
... 1
38(27}
CCBFLGB2
1 ...
. 1 ..
.. 1.
""
,
I
1 ...
. 1 ..
. ~ 1.
... 1
45(2D}
CCBGADR
46(2E}
CCBCAB
Not text out (IBM type 1 and 2); not first
character (2848 and TTY).
EIB data check.
EIB overrun.
Code B selected .
ITB mode .
CeB flag byte 2·terminal type.
Dualcom installed.
Station select installed .
ASCII transparent.
Transparent mode, wait for second write.
Second write accepted .
Multipoint address remember flag .
No trailing pad check .
Group selection address.
Multipoint address difference bit .
.. 1.
.•.. x ...
.1 ..
.. 1.
... 1
Sync monitor latch
1=Syncs detected in inbound CA transfer.
O=Non-sync character detected in
inbound data.
OLE remember latch
ASCII monitor control latch .
EBCDIC monitor control latch .
:..;
Data Area Layouts
33
CHARACTER CONTROL BLOCK (DUMMYI
CCB
(EP,PEP)
,
\
Program: EP, NCP2, NCP3
Size in bytes: 10 (OAI
Located: SLVL5
Created by: NCP and EP generation.
Updated by: ICP.
Pointer to Dummy CCB: CHVT (Pointer has low order bit on).
Referenced by: ICP, CHVT.
&.:..'
~"
Function: Used to handle sense, test 110 sad 1/0 NOP to a subchannel within the highlow range of subchannel addresses. but to which no line has been assigned.
8(81
10(AI
CCBSVLNK
CCBSOLNK
Status out queue forward chain
pointer.
Data service queue forward
chairi pointer.
12(CI
13(01
14(EI
15(FI
CCBSUBCH
Multiplexer sub-
CCBBThCD
Type 1 LCIl for:set
Final line status
channel address.
PCF line use,
byte.
16(101
CCBCMD
Current command
for CCB (See
section 6.l
CCBSTAT
CCBSENSE
Final line sense
byte.
17(111
CCBLRI
Line request
information:.
f
\.
(
34
3704 and 3705 Program Reference Handbook
CHARACTER CONTROL BLOCK (Line Tort)
CCB
(EP,PEP)
Program: EP,PEP
Size in bytes: 38(26) for each
start~stop
line.
44(2C) for each BSC line.
Located: SLVL5
Created by: NCP and EP generation.
Updated by: LCP,ICP.
Pointer to CCB: LNVT
Referenced by: LCP, ICP, CHVT.
Function: Contains current information on the physical operation of a line. One eea
is generated for each line specified.
0(0)
CCBOATA
Receive Data Buffer
4(4)
6(6)
CCBTLINK
CCBTBAOR
Return Unk Address
Save Area
Transmit Buffer.
Address
10(A)
8(81
CCBSVLNK
CCBSOLNK
Data service queue forward chain
pointer.
Status out queue forwa~ chain pointer.
12(C)
CCBSUBCH
Multiplexer sub-
channel address.
16(10)
CCBCMD
CUffant command for eeB.
13(0)
CCBBTLCD
Type 1 LCD for
14(E)
CCBSTAT*
15(F)
CCBSENSE*
Final line status byte. Final line sense byte.
set PCF line use.
17(11)
CCBLECS*
Line Error Check.
18(12)**
CCBCSTAT
19(13)**
CCBCSENS
Current status.
Current sense
(See Section 6.)
20(14)
CCBCAC
Buffer Index.
21(15)
CCBTEST
22(16)
CCBCLOCK
Active Test
Function
Timer control
24(18)
CCBACADR
23(17)
CCBTMADR
Timeout routine displacement into
branch table.
field.
26(IA)
CCBOPT*
CCS option byte 1.
Autocall address.
·Indicates that a byte expansion follows.
"'·For byte expansion of CCBCSTAT, refer to CCBSTAT.
27(IB)
CCBOPT2*
Option byte 2.
For byte expansion of CCBCSENS, refer to CC8SENSE.
Data Area Layouts
35
CCB
(EP, PEP)
28(IC)
CCBSTMOO*
Set mode byteOutput X'46'
29(10)
CCBLCO'
~,\
Line control defini-
tion (LCD) field.
(H iSh 4 bits contain
line control definer;
low 4 bits contain 0.)
Start/Stop Extension
3O(1E)
CCBLRC
SS longitudinal
32(20)
CCBSSCX*
SS oontrol flags
33(21)
CCBPEPFL'
PEP flags
redundancy
check byte.
34(22)
31(IF)
CCBSSC*
SS oontrol flags
byte.
CCBLGT
55 line group table pointer.
extension.
36(24)
CCBL2
Level 2 interrupt address.
Binary Synchronous Extension
3O(IE)
CCBBCC
SSC block check characters
- - CCBBcCl
- - 31(iF) - - BSC block check
character 1.
32(20)
CCBPEPFL*
PEP flags.
34(22)
CCBSYN
BSC EBCDIC or
USASCII Syn
character.
36(24)
CCBL2
Address of current level 2 character
38(26)
CCBFLGB1*
Flag byte 1-
service routine.
4O(2B)
stetus.
CCBBCC2
BSC block check
character 2.
35(23)
CCBEOT
BSC EBCDIC or
USASCII EOT
character.
39(27)
CCBFLGB2*
Flag byte 2terminal type.
{
42(2A)
CCBL2Al
lost data routing.
CCBOLCOM
CCB address if dual communications
feature is installed (2701 emulation only).
"Indicates a byte expansion follows.
(
3B
3704 and 3706 Program Rafaranca Handbook
CCB
IEP, PEP)
Station Select Feature Extension (Optional)
•
44(2C)
CCBSADR
Station selection
address and station
poll address. These
two addresses
4512D)
CCBGADR*
Group selection
address.
differ in bit posi·
•
(~
tion 2 .
*Indicates that a byte expansion follows.
Byte Expansions
Bit Patternl
Offset/Field Name
14(E)
CCBSTAT
"-
15(F)
CCBSENSE
~
17(11)
CCBLECS
Hex Value
Contents
X'OO'
X'OI'
X'02'
X'04'
X'OS'
X'OC'
X'OD'
X'OE'
X'10'
X'20'
X'40'
X'4C'
X'SO'
Reset status byte.
Set UE.
Set UC.
Set DE.
Set CEo
Set CE,DE.
Set CE, DE, UE.
Set CE, DE, UC.
Set CU busy.
Final line status byte.
Set control unit end.
Set SM.
Set CE, DE, SM.
Set attention.
Final line sense byte.
X'OO'
X'OI'
X'02'
X'04'
X'OS'
X'10'
X'20'
X'40'
X'80'
1 •...
.1 ..
.. 1.
... 1
Reset sense byte.
Time-out
Set lost data.
Set overrun.
Set data check.
Set equipment check.
Set bus out parity check.
Set intervention required.
Set command reject.
....
....
l .••
.... 1. ..
.... .1. .
.... .. 1.
.... ... 1
~
21(15)
CCBSVSTC
X'88'
X'48'
X'CO'
Reserved for interface disconnect
Data check
Transmit mode
Receive mode
Normal compare set
SWap 3 set
SWap 2 set
Swap 1 set
ServicelStatus flag bvte.
Set data service (buffer 0) + data end.
Set data service (buffer 1) + data end.
Set SV 1 and SVO bits.
Data Area layouts
37
CCB
(EP, PEP)
Offset/Field Name
26(IA)
CCBOPT
BitPatteml
Hex Value
CCB option byte 1.
1 ...
. 1 ..
Auto call option installed.
long disable time.out .
..x.
Dualoom interface A::::O
B=1 (BSC).
Not unit exception on EOT(lBM 55) .
Ring option installed .
Swltched line installed .
.. 1.
... 1
.... 1 ...
.x . .
.. 11
27(IB)
CCBOPT2
1 ...
. 1 ..
.. 1.
... 1
1 ...
. 1 ..
.. 1.
... 1
28(IC)
CCB5TMOD
1 ...
. 1 ..
.. 1.
... 1
.... 1 ...
. 1 ..
.. 11
29(10)
CCBlCD
Contents
0000
0010
0011
0100
0101
0110
0111
1100
1101
1111
~~:e; ~=~~~~~:;~~:~~;f~~i'oritY. ~
CCB option byte 2.
Channel decode IBM type 1 and type 2
EOB.
Trace active for this line .
Channel decode IBM type 3 ETX .
2702 or 2703.
SS no OeD security monitor.
World Trade telegraph.
~.
Not long line quiet time-out (25.6 seconds)
~•
IBM modem flag (option 1,55only) .
5et mode byte, Output X'46'.
Type one scanner low bit service priority.
Diagnostic Wrap mode .
Data terminal ready .
Binary sync clock .
External (data set) clocking .
Data rate select .
Oscillator select.
Line control definition (LCD).
55 9/6 (1 start, 6 data, and 2 stop bits).
55 8/5 (TTY 1 • 83B3, 115A).
Autocall LCD.
55 9n (IBM type 1).
5510n.
55 10/8 (2848).
55 11/8 (TTY2· TWX models 33/35).
BSC EBCDIC.
BSC U5ASCII.
Feedback check.
(,
(
3B
3704 and 3705 Program Reference Handbook
Data Area Layouts
39
CHARACTER CONTROL BLOCK
CCB
.(NCP)
........m: NCP
Size in byllls:. 56(38)
Created by: NCP generation.
Pointer to CCB: Follows lOB in ACB for BSC/SS lines. Follows LXB in ACB for SOLC
lines.
Function: Contains line control information.
36(24)
CCBL2
Address of current level 2 character
service routine.
40(28)
38(26)
CCBSTATE·
Pointer to character service state address
table. Initiallv. CCBSTATE contains the
address of the beginning of the state address
table. The masks shown in the byte expansion are applied tathe low-order byte of
CCBSTATE by the character service routines. They change the valud'of CCBSTATE
so that it points to the entry in the state
address table that contains the address of
the routine to handle the line state indicated.
42(2A)
CCBTACBor
CTBACB
Pointer to the next ACe in the
timer chain.
44(2C)
CCBlWORKor
CTBWORK
Timer work entry for this ACB.
46(2E)
CCBLINK
Pointer to next ACB in level 2·3
chain.
CCBTIME·
Time-out interface.
CCBTOCMO
Time-out command.
48(30)
CCBBCC
CRC check ch.racter (BSC).
or
CCBBCB
BCe address, if type 1 scanner.
CCBTOREM
Time-out remembrance.
50(32)
CCBBAR
Line address, if type 2 scanner.
or
r···· .
CCBLRC
LRC character
(SS).
-Indicates a byte expansion follows.
r
CCBCASE
Case history
(SS).
{
~..
40
3104 Ind 3706 PrOgrem Refarance Handbook
CCB
(N!=PI
54(36)
52 (34)
CCBLGPT
Pointer to line group tabte for
CCBCNTS
Character countlbuffer count field.
group.
CCBCHAR
Buffer character
count.
l·······
CCBCUT
Buffer. maximu~ for
a receive operation.
58(3A)
56(38)
CCBSTAT1'
Current operational status of the
line.
CCBENDI
Line status at completion of a level 2
operation. The level 2 routine moves the
status from CCBSTAT1 to CCBENDI at
the end of an operation.
60(3C)
CCBOATA"
Address of the data byte bt!ing sent or received (last 18 bits) .
. .
CCBNCFL'
Flags for control
CCBEN02
Record descriptor
flags moved from
operations between
lOB commands.
CCBSTAT2at
end of a level
2 operation.
64(40)
CCBSTART
Current buffer address (last 18 bits).
- CcBOFSEr At start of a receive
- - -CCBFLAGS'
- . _.General Flags.
operation, set to the
offset into the buffer
of the first data char·
acter (SS/BSC only),
.1
after first character
is received, set to
zero, indicat,ng
that data was stored.
68(44)
CCBRXLAT
Address of receive translate
decode table.
CCBCPCNT
Poll cycle count
(SOLC).
69(45)
CCBCPRAT
Conuct poll rate
(SOLC).
70(46)
CCBTXLAT
High·_ byte of
71(47)
CCBSTAT2
Record descriptor
transmit translate
flags. If any bit in
decode table address. this field Is on. it
(The low-order byte indicates that the·
of the address is the corresponding char·
character to be
aCler was scanned.
translated) .
._--------CCBPASCT
Pass counter-number
of BLUs sent (SOLCI •.
_r
orCCBNEXT
Buffer for next
to be
trlnsmitted.
CCBRBLUC'
BLUcommand
field received for
lovel3 (SOLC).
(.I
•
_
~
·Indl","", a byte expansion follows.
."Typo 3 scanner .....iva-Addr... of one charmer beyond tho lISt character received.
Typo 3 soannor tronsrnit-:-Addms of the next buffer in the write chlin (zoro if nono).
Date Area Layouts
41
CCB
(NCP)
72(48)
CCBHOBUF
, , , , , , 'r/" ' , , ' ,
Address of first buffer in a block (last 18 bits).
I
CCBBUFCT
Buffer.maximu":, for
CCBTYPEC*
Oial control flags.
a receive operation.
76(4C)
80(50)
CCBSMSOF*
Set mode. control
flags,
79(4F)
CCBFSTSV
7B(4E)
CCBERTRY
CCBL3
Address of next level 3 routine to
be executed.
B1(51)
CCBXTPCF
Transmit turn
around.
LCOIPCF,
Text error retry
CCBCTL*
Control flagslline type.
T
CCBRSPON*
Control flags.
84(54)
Save area for
current status.
limit.
82(52)
86(56)
CCBESTAT
Expected ending status of the level
CCBTYPE*
Line type.
CCBL2REM
Save area for eCB L2. (SOLC)
'S7i5i)
"2 operation.
CCBNEGPO
CCBICCCT
Initial control
BSC negative
character count.
poll wait timeout
,
,
,
,
,
,
,
,
or
CCBVTABO
Vertical tab delay
(number of idles
sent after a verti·cal tab; SS only)
88(58)
CCBCRTN
Number of print
positions carriage
89(59)
CCBLCNT
Length of print
line (SS only),
will return in time
'OO(5A)
CCBLTCRP
Number of data
positions since
last carriage return.
91(5B)
CCBNTCRP
Net carriage return
value.
it takes to send one
idle character (SS
only).
I
orCCBAFLO
orCCBCFLO
Received secondary
station address
SO LC/BTU com'
(SOLC).
mand field.
Received
orCCBLNRP
Last N(R) processed
(SOLC).
orCCBPOLLI
Poll interval·
f
maximum poll rate
(SOLC)
orCCBXTICH
Character position
of ITB mode transparent text (BSC
only),
f
42
;1704 and 3706 Program Reference Handbook
(NCP)
Byte Expansions
Offset/Field Name
3S(26)
CCBSTATE
Contents
Pointer to character service state address
table.
State masks used by SSC character service
X'OO'
Receive not text.
X'02'
Receive. phase.
X'04'
Receive Bec.
X'OS'
Receive first not text.
X'OS'
Receive end pad.
X'OA'
Queue received sub-block.
X'OC'
Receive text.
X'OE'.
Receive intermediate BCC.
X'10'
Transmit not text.
X'14'
Transmit BCC.
X'lS'
Transmit syn insertion.
X'18'
Transmit end pad.
X'lA'
Transmit initial.
X'l C'
Transmit text.
X'l E'
Transmit intermediate BCe.
X'20'
Receive idle.
X'22'
Receive enable.
X'24'
Receive OLE in text.
X'26'
Receive disconnect.
X'28'
Receive OLE in not text.
X'28'
Transmit OLE in not text.
X'2A'
Receive transparent text.
X'2C'
Receive first transparent text.
X'2E'
Receive OLE in transparent text.
X'30'
Transmit Diagnostic.
X'32'
Transmit Dial.
X'34'
Transmit OLE in text.
X'3S'
Transmit syn insert-transparent.
X'3A'
Transmit transparent text.
X'3C'
Transmit first transparent text.
X'3E'
Transmit OLE in transparent text.
State masks used by start-stop character service
X'OO'
Receive control.
Receive lost data.
X'02'
X'04'
Receive LRC.
X'OS'
Receive response.
X'OE'
Line turnaround.
X'lO'
Transmit ctl. w/repetition.
X'12'
Transmit pad.
X'14'
Transmit LRC.
X'lS'
Transmit reply.
X'lA'
Transmit ctl. w/address.
X'l E'
Line turnaround.
X'24'
Receive first character, MTA.
X'28'
Receive post sense byte.
Post the ACB queue.
X'2A'
X'2C'
Receive line quiet test{l).
X'2E'
Receive line quiet test(2).
X'32'
Receive line quiet test(3).
X'34'
Transmit carriage idles.
X'3S'
Transmit 1030 text idles.
X'38'
Transmit reset pad flag.
X'3e'
Transmit sub·block end.
X'3E'
Transmit break.
Data Area Layouts
43
GCB
(NCP)
Offset/Field Name
Bit Pattern/
Hex Value
Contents
State masks used by SO LC character service
X'OO'
RCV idle.
X'OE'
Shoulder tap time-out.
X'IE'
Shoulder tap time-out.
X'20'
ReV idle.
X'22'
Enable.
X'26'
Disconnect.
X'2E'
Shoulder tap time-out.
X'3E'
Shoulder tap time·out.
~
State bits and definitions
OLE mask.
l=OLE encountered.
O=No OLE encountered
X'10'
Transmit/Receive mask.
l=Transmit.
O=Receive.
X'04'
CTL or text out test mask.
l=SS state is receive reply.
O=SS state is receive control.
X'02'
Send EOA mask.
1=5end pad in place of EOA.
X'20'
[
[
~
O=Send EOA.
X'OI'
46(2E}
CCBTIME
The bits in
position 0 of
both bytes of
CCBTlME are
used together
for time-out
control. When
these bits have
different values
in the two
bytes of
First flag mask.
l=First non SYN or OLE.
O=No first non SYN or OLE.
Time-out interface.
CCBTlME, a
new timer
command
is present.
56(38}
CCBSTATI
Byte 0
...
1 ...
.1 ..
.. ..
.. 1.
... 1
...
..
...
....
CCBCMPCO
....
1 ...
Byte 1
,1 ..
.. 1.
... 1
Current operational status of line.
Exceptional ending flags passed between
levels 2 and 3.
Character ovJrrun/underrun.
Format erro (abnormal line control
sequence for a receive operation).
Stop bit error (start·stop only) .
Abort frame (SOLC). Seven ones in a row
have been received.
Data check (VRC, LRC, or CRC error) .
Block overrun occurred (SOLe).
Line quiet time-out (SS only).
Reset command in process.
Invalid OLE sequence (BSe only).
Transmit length check. (BSe/SS)
~
Completion codes indicating how the I/O
operation end~. Status masks are the
same a"hose for IOBSTAT+l (BSC/SS
lines) or LXBSTATC (SOLC links!.
44
3704 and 3705 Program Reference Handbook
Offset/Field Name
61(30)
Bit Patternl
Hex: Value
Byte 1
CCBNCFL
1.
.1.
.. 1.
.. 1
65(41)
CCBFLAGS
(III
1.
. 1.
... 1
1.
.1 ..
Reseive~
71(47)
CCBRBLUC
~
RRRP
RRRP
RRRP
RRRP
SSSO
0001
0101
1001
0011
1001
0101
OOll
0001
0111
0111
0011
0001
0111
0001
1111
1001
0111
P=PoillFinal
RRR=N(R)
SSS=N(S)
73(49)
CCBTYPEC
1
.1.
.. 1.
.. 1
. 1 ..
Set mode control flags.
CCBSMSDF
Se,:vice priority (type 1 scanner).
1"'low priority.
O",high priority.
Diagnostic mode .
Data terminal ready bit .
l=synchronous line.
O=start·stop line.
l=modem clocking.
0=3705 clocking.
Data rate select bit (World Trade modems).
l"'high speed_
O"'low speed.
Oscillator select bit 1.
Oscillator select bit 2 .
Control flags/Line type.
. 1.
.. 1.
i.iJ
C Fie~.~ - BLU 50Le
I format
S format RA cmd/resp.
5 format RNR cmdlresp.
5 format REJ cmd/resp.
N5 format SNRM cmd.
NS format SDRM cmd.
NS format 51 M cmd.
NS format NSA resp.
NS format RQI resp.
NS format ROl resp.
N5 format CMDR resp.
l-Poll (c~dl
- Final (re~p)
Recv seq count
Send seq count
Dial control flags.
Switched line.
Line has auto dial unit (switched only).
Recognize ring Indicator lead .
Line has DC telegraph loop .
1"'Generate answer tone after call· in.
O=Answer tone is automatic .
Not NRZI mode.
80(50)
W
""'"
Contents
Flags for control operations between lOB
commands.
Command initialization delay required.
Special ender procedure when no command
is up.
Send TTD bit .
Send WACK. (Bits 4-7 reserved).
General flags.
Tab preceded CR/LF (55). No time-out
(SSCI. Initial time-out interval (SOLe}.
Control mode indication.
l=control mode is response to text.
O=control mode if from polling or
addressing.
Post ACB to the queue after turnaround .
One character of break signal received (SS).
Next event is ITS (SSC).
line is in diagnostic mode.
OlL T active (SOLe)
.. 1.
.. 1
82(52)
CCBCTL
Byte 0
Control flags.
Control Flag Definitions for Replies
Send NAK reply/delay after autodial.
1 ...
Send ACK reply.
.1 ..
Alternating ACK bit for esc (valid only if
.. x.
bit 1 is also onl.
1=send ACK 1.
O=send ACKO.
Data Area Layouts
45
CCB
(NCP)
Bit Pattern!
Offset/Field Name
Contents
Last text reply was WACK (BSC). TTO
received when ACK outstanding
Last reply outstanding (SS).
Hex Value
... 1 ....
Expected receive alternate ACK bit (BSC) .
l==ACKl expected reply.
O=ACKO expected reply.
.... x ...
Control Flag Definitions for Polling Operations
SOLe poll wait
1=wait
0::::"0 wait
or
Service seeking skip bit.
l==Terminate if at end of service order
table.
O==Continue service seeking .
SD LC transm it leg busy.
Service seeking polling, or single poll.
Service seeking.
Orderly link stop,
x . .. ....
.1 . .
· .1 .
· .. 1
1:::End run when both transmit and
receive legs idle. (SO Lei
SDle receive leg busy,
· ... x...
o
•••
•
••
l=Cannot poll now (primary).
(Always on if secondary.)
O=Can poll now.
SDle poll loop cor.trol
x
l==At end of list no active station found
O=Active station found in list
Control Flag Definitions for Enable/Dial Operations
1...
.1 . .
· .x .
Abort enable dial.
Abort when level 2 processing ends.
Duplex enable second pass through under
(SOLC).
l=Second pass through enable end.
O=First pass through enable end.
· .. 1 ....
Send ENQafter to. (8Its4·7 reserved).
Control Flag Definitions for Text Operations
I
)1 . .. ....
Insert data before text. (Bits '·7 reserved).
Control Flag Definitions for Multiple Terminal Access
MTA retry in process. (Bits 1·3 reserved).
1. ..
1 ...
MTA line enabled.
Phase bits:
.xx.
8'OO'=ldle.
S'Ol'=Receive text.
B'10'=Receive text reply.
B'11'=Receive control.
Phase bits for SO LC operations:
8'OO'=No command active.
8'Ol'=SOLC I·format sent or SOLC
RR-sent.
B'10'=SOLC RNR ..ent.
8'11'=SDLC NS-command sent.
Special phase bits for ID exchange:
8'OO'=No command active.
B'Ol'=Receive 10 phase.
B'10'=Receive 10 reply.
8'11'=Connect and Command Reject.
Leading graphics being sent .
.. 1.
Sub·blocking occurred .
... 1
c
(
46
3704 and 3705 Program Reference Handbook
CCB
INCP)
Bit Pattern/
Offset/Field Name
Hex Value
Contents
CGBTYPE
Byte 1
Line type
x ...
1=Line is on a type 3 scanner.
O=line is not on a type 3 scanner.
Duplex adapter .
l=Line has 2 line adapter addresses.
0=1 line adapter address.
.x ..
•• X •
....
Half duplex ACB or duplex transmit leg
AGB.
l=Half duplex leg or duplex transmit leg
AGB.
O=Duplex receive leg ACB.
or
Duplex adapter transmit leg ACB.
l::Transmit leg.
Q=Receive leg.
or
SS IWTTY) strip FIGS/LTRS NGP#.
l==Strip F IGS/LTRS in received text.
... 1
....
Use data set new sync feature
IBSG/SDLG).
Half duplex link on which break is
.... x ...
....
. 1 ..
...
• •X •
....
.. .x
allowed (55).
Line type bit .
l=BSG.
Q=start-stop, SDLe (see bit 7) .
Remote station can receive error message
IBSG).
Time-out valid reply for negative poll
J
I
(start-stop).
Point-ta-point contention bit (BSC/SOLC) .
l=poinHo-point contention secondary
station (BSC).
O"'poinHo'point contention primary
station.
1=SOLC secondary station.
O=SOLC primary station.
World Trade shift bit (55),
l=upshift on space character (WTTY only).
O=no upshift on space.
SO LC link bit NCP#.
l=Line type is SOLC (Bit 4=0).
O=Line type is not SOLe.
or
SIS IWTTY) strip FIGS/L TRS. INGP2j
1=Strip FIGS/LTRS in received text.
Q=Leave FIGS/LTRS in received text.
Data Area Layouts
47
CLUSTER GENERAL POLL EXTENSION TO
ova
CGP
Program: NCP
Size in bytes: 16(10)
Located in; oVB
Created by: NCP generation.
Pointer to CGP: OVBCLSO field in OVB.
Function: Contains information necessary to reinitiate suspended sessions of general
polled devices.
(
0(0)'
CGPRVTE
Pointer to RVT entry.
4(4)'
CGPSSC
Suspended
sessions count.
S(S)"
r
CGPSSS
1'6(6)"
(Reserved)
~spende~ ses-
sions serviced.
Cluster Suspended Sessions ace
(See aCB for Work Queues for all bit definitions.)
10(A)'
S(S)"
CGPIECB
Pointer to first BCU queued.
(Shifted address.)
12(C)'
113(0)'
CGPPRKEY
CGPSTAT
CGPLECS
Pointer to last BCU queued.
(Shifted address.)
14(E)'
CGPLINK
Task and queue
Protection key.
Pointer to next aCB in chain.
(Shifted address.)
status.
..
... Actual position depends on other extensions present.
~..
(
48
3704 and 3705 Program Reference Handbook
CHB
(NCP1,2)
CHANNEL CONTROL BLOCK
PrOgram: NCP1, NCP2
Size in byte.: 128(80)
'..J
Created by: NCP Generation
Pointer to CHB: CHSVH2 field in XDH
Function: Contains the parameters and control fields used by the type 2 channel
adapter 110 supervisor.
CHB Prefix
-24(-18)
CXCAWQ
Channel work aCB. (For format, see Queue Control Block for Work Queues.)
-16(-10)
CXCAHQ
Channel hold
ace. (For format, see Queue Control Block for Work Queues.)
-8(-81
CXCAECB
Event control block for leasing buffers. (For format, see Event Control Block.)
0(0)
CHBSTATE*
1(1)
CHBTRIG*
Channel adapter
outbound state
2(2)
(Reserved) .
Channel trigger
field.
CA select byteindicates current
primary CA.
field.
4(41
3(3)
CHBCASEL*
6(61
CHBXR50
CHBXR51
Save area for external register X'50',
Save area for external register X'5,',
8(BI
10(AI
CHBXR52
CHBXR53
Save area for external register X'52'.
Save area for external register X'53'.
12(CI
14(EI
CHBXR54
Save area for external register X'54'.
* Indicates a byte expansion follows.
CHBXA55
Save area for external register X'55'.
Data Area
Layouts
49
(NCP1,21
16(101
Save
18(121
~rea
CHBXR57
for external register X'57'.
CHBXR5C
Save area for external register X'5C'.
20(141
CHBIM1SV·
Save area for input manager's linkage register to CXCACIM1.
24(18)
fi
CHBIM3SV
Save area for input manager's linkage register to CXCACIM3.
28(1CI
CHBECBAD
Address of ECB for leasing buffers.
32(201
CHBEQSV
Address of the complete BTU to be passed to the system rOl:lter.
f
36(24)
CHBEQSVN
Address of the last buffer in the BTU to be enqueued.
40(281
CHBBSVS
Address of the first buffer on the save chain.
44(2C)
CHBBSVE
Address of the last buffer on the save chain.
48(301
CHBICFB
Address of the first buffer in the CW chain.
54(36)
52(341
CHBICPS
CHBICFE
Pointer to the input CW chain (CIC).
Address of the first CW on the input
CW chain (CICI.
56(38)
58(3AI
CHBICLE
CHBLEXCW
Address of the last CW on the
Address of last executed CWo
input CW chain (CIC).
62(3E)
60(3CI
CHBRNBS
CHBLBCNT
Number of data bytes in one NCP
Data count for last inbound buffer used.
buffer (shifted left two bits).
66(42)
CHBRNBAL
64(401
CHBRCNT
Original data count in last CW executed.
NCP generated
buffer lease
count for
inbound data.
67(431
CHBBLC
Current buffer lease
count (same as
CHBRNBAL except
during slowdown,
when this field equals
one).
6B(44)
CHBCOMSV
Save area for linkage register for CXCACOM.
72(481
CHBHQBS
Address of the last outbound BTU given to the channel adapter output initiator.
(
50
3704 and 3705 Program Reference Handbook
...nts
(NCP1.2)
7614C)
CHBWOAD
Address of the channel work QCB.
80(50)
CHBHOAD
Address of the channel hold QCB.
84154)
CHBOCFB
Address of the first buffer on the output CW chain (CaC).
88(58)
9015A)
CHBOCPS
CHBOCFE
Pointer to the output CW chain
Address of the first CW on the output
(CDC)'
CW chain (CDC).
9415E)
9215C)
CHBOCLE
CHBWKA
Address of the last CW on the output
Save area.
CW chain (CDC).
96160)
98162)
CHBHBAL
CHBHBS
Host buffer size in bytes.
99163)
CHBOCR
Number of host
buffers allocated
per read list.
Number of host
buffers remaining
or use by the output
CW chain ICOC).
100164)
102(66)
CHBPADl
CHBP1PT
Pointer to start of access method
103167)
(Reserved).
Number of bytes
in access method
pad O.
pad O.
104168)
106(6A)
CHBPAD2
CHBP2PT
pad 1.
(Reserved).
pad 1.
108(6C)
11016E)
CHBDLAY
CHBATTO
NCP generated value for attention
delay in tenths of a second.
112(70)
First attention time·out interval.
115(73)
114172)
CHBSSICF
CHBATT2
Second attention time·out interval.
116174)
107(6B)
Number of bytes
in access method
Pointer to start of access method
(Reserved).
CA-inoperative
flag for level 1
only.
(R eserved).
120(78)
CHBERPSV
Save area for channel error recovery procedure.
124(7C)
CHBSCBA
Address of secondary channel adapter extension, if present.
Zero if not present.
Data Area Layouts
61
INCP1,ZI
Control Word Chain Area"'·
0(0)
CHBCOCWS
Variable length area for Out CW chain (COC).
CHBCICWS
Variable length area for In CW chain {CIC}.
it. If the secondary channel adapter extension to the CHB is present. this area (Control
Word Chain Area) follows the extension.
***Offset depends on length of CHBCOCWS.
(
Byte Expansions
OffsetiFieid Name
0(0)
CHBSTATE
Bit Pat1Bml
Hex Value
Contents
Channel adapter outbound state field.
Attention needs to be presented to host.
Attention delay active.
(Reserved) .
1 ...
. 1 ..
. .x .
... 1
Allow attention time-Qut.
1 ...
.x . .
.. 1.
Attention has been presented.
(Reserved) .
coe is active .
... 1
Channel work queue is active .
1(1)
Channel trigger field.
CHBTRIG
1.,.
Next BTU has been rejected because of
.1 ..
.. 1.
... 1
SIOVtodown mode indicator.
Switch-in-progress flag.
slowdown.
Reject the next BTU because of slowdown .
1 ...
Terminate flag.
. 1 ..
Secondary Read pending flag •
SWitch Read pending flag.
Type 2 channel adapter 1.
Type 2 channel adapter 2.
... 1
3(3)
CHBCASEL
62
X'OB'
X'OO'
3704 and 3706 Program Reference Handbook
~~
CHANNEL CONTROL BLOCK
'..J
CHB
(NCP#)
Program: NCP#
Size in bytes: 128(80)
Created by: NCP Generation
Pointer to: CHSVH2 field in XDH
Function: Contains the parameters and control fields used by the type 2 and type 3
channel adapter I/O supervisor.
-48(-30)
CXCAXHO
PIU exception queue (for format, see acB for input queues).
-32(-20)
CXCAIO
Channel intermediate aCB (for format, see aCB for work queues).
-24(-181
CXCAHO
Channel hold aCB (for format, see aCB for work queues).
-16(-10)
CXCAECB
Event control block for leasing buffers (for format, see
Event Control Block.)
-8(-8)
XXCXTCHB
Dump identifier. Characters "XXCXTCHB"
: 010)
;"~bHBCASEL
21>1 CHBSEL
CHBCNO'
Channel condition flags.
Channel adapter select bit.
X'OOOS' type 2 CA-posltion 1.
X'OOOO' type 2 CA·position 2.
5(5)
4(4)
CHBSS(CF
6(6)
CHBICNO'
Condition flags on entry.
Reserved.
Channel adapter
inoperative flag for
level 1 use only.
8(8)
10(A)
Reserved.
12(C)
Reserved.
Reserved.
14(E)
CHBRSX
j15(F)
CHBWSX
Next Read Start
command expected.
16(10)
Next Write Start
command expected.
18(12)
CHBXR50
CHBXR51
Save area for external register X'50'.
Save area for external register X'51'.
20(14)
22(16)
CHBXR52
CHBXR53
Save area for external register X'52'.
Save area for external register X"53'.
24(18)
26(IA)
CHBXR54
CHBXR561
Save area for external
register X'54'.
Save area for input from
external register X'56'.
30(1 E)
28(1C)
CHBXR550
Save area for output to external
register X'5S'.
CHBXR56
Sa.,. area for external
rogimcX'56'.
-Indicates a byte expansion follows.
Dati Area Layouts
63
CHB
INCP#)
32(2U)
(
1 34(22)
{
CHBXR57
CHBXR5A
Save area for external
Save area for external
register X'5A'
register X'57'.
36{241
381261
Reserved.
CHBXR5C
Save area for external
register X'5C',
401281
CHBLESV
Save area for CXCALEAS.
44(2C)
CHBBCWSV
Save area for CXCABCWS.
481301
CHBBFXSV
Save area for CXCABFIX.
52(34)
CHBIBTUA
Address of first buffer of current PIU.
561381
CHBIPBF
Pointer to last inbound buffer.
6O(3C)
CHBIBUF1
Address of first buffer on inbound CW chain.
64(40)
CH81BUFN
Address of last buffer on inbound CW chain.
6B(44)
CHBCBTU1
Address of a complete PIU passed to path contr.ol.
7214B)
CHBCBTUN
Address of ~ast buffer of PIU to be enqueued.
76(4C)
7914E)
CHBICWA
Address of inbound CW area.
CHBICW1
Address of first CW on inbound
CWchain.
82(521
80(501
CHBICWN
CHBLEXCW
Address of last CW on inbound
CW chain.
Address of last
64(54)
e~ecuted
CWo
861561
CHBLBCNT
CHBRCNT
Data count for last inbound
buffer.
Original data count in last
88(58)
CHBMLCNT
Number of
executed CW.
9015A)
,89(59)
CHBBTUCT
Number of PIUs enqueued.
CHBCLCNT
Current buffer
buffers to lease for
inbound transfer.
lease count.
9215C)
9415EI
Reserved.
CHBSKPCT
Number of PIUs to skip for retry.
(
96(60)
CHBIQBS
Address of last outbound block given to CXCAOUT.
100(64)
54
102(66)
CHBOFFST
CHBDATCT
Temporary area for buffer data offset.
Temporary area for buffer data count.
3704 and 3705 Program Reference Handbook
(NCP#)
104(68)
106(6A)
CHBOCW1
Address of first
on output chain.
CHBOCWN
Address of last CW on output chain.
c:w
lOB(SC)
~I
I
110(6E)
CHBFHAC
CHBRHAC
System generated host Read buffer size.
Host Read buffer size work area.
114(72)
112(70)
CHBRCCW
Number of host Read CCWs per
channel transfer unit work area,
CHBFCCW
System generated number of host
Read CCWs per channel transfer unit.
11B(76)
116(74)
CHBVPAD
VTAM Pad size.
'if
CHBDLAY
NCP system generation value for
attention delay in tenths of a second.
120(78)
I
122(7A)
CHBHWM
CHBATTO
Attention delay
First attention time-out
interval.
PIU counter,
124(7C)
Reserved
.)
Control Word Chain Area··
..
0(0)
CXCAOCWA
Variable length area for Out CW chain (COC).
CXCAICWA
Variable length area for In CW chain {CICI.
**'f the secondary channel adapter extension to the CHB
is present, this area (Control
Word Chain Areal follows the extension.
***Offset depends on length of CHBCOCWS.
Byte Expansions
Offset/Field Name
0(0)
CHBCND
6(6)
CHBICND
Bit Pattern/
Hex Value
Byte 0
1 ...
.1. .
... 1.....
.... 1. ..
~I
Byte 1
.1 ..
.. 1.
1 ...
•1 ..
.. 1.
••• 1
..,I
4(4)
1 ...
Contents
Channel condition flags.
Attention status required.
Attention delay active.
Inhibit attention time-out .
Attention has been presented .
Slowdown mode BTU rejected.
Slowdown mode indicator .
Switched in progress flag.
Secondary Read pending .
Switch Read pending
Terminate flag .
Set if more than 16 interrupts occur in
100 milliseconds on a secondary channel
adapter .
Data Area Lavouts
55
Ext.
SECONDARY CHANNEL ADAPTER
(NCP1,2)
Program: NCP1, NCP2
Size in bytes: 12S(80)
Created by: NCP generation
(
Pointer to CHB extension: CHBSCBA field in CHB.
Function: Contains the parameters and control fields used by the type 2 channel adapter
110 supervisor when switching primary and secondary channel adapters.
0(0)
(Reserved)
4(4)
6(6)
CHBSXR50
Save area for external register X'SO',
S(S)
CHBSXR51
Save area for external register X'Sl',
10(A)
CHBSXR53
CHBSXR54
Save area for external register X'53',
Save area for external register X'54',
12(C)
14(E)
CHBSXR55
CHBSXR56
Save area for external register X'55'.
Save area for external register X'S6',
16(10)
lS(12)
CHBSXR57
CHBSXR5C
Save area for external register X'S1'.
Save area for external register X'SC',
20(14)
22(16)
CHBSICV
CHBSOCV
Value of secondary CA's INCWAR.
Value of secondary CA's OUTCWAR.
24(1S)
26(lA)
CHBSSINA
Address of an In CW for reading
CHBYRPR
Address of Out CW for response BTU
indicating that the old secondary is
now the primary.
switch commands.
2S(lC)
30(lE)
CHBYRSR
CHBSSATA
Address of Out CW for response BTU
indicating that the old primary is
now the secondary.
Address of Out ()N for response BTU
indicating that attention time-out has
expired on the primary CA.
32(20)
CHBSBPT
Pointer to secondary channel adapter buffer.
56
3704 and 3705 Program Reference Handbook
CHB
Ext.
(NCP1,2)
36(24)
(Reserved)
40(28)
CHBSINCW
In CW with zero count override for switch commands.
44(2C)
Area for building CW to transfer pad before response BTU 1.
48(30)
CHBPRCW
Out-stop CW with no chaining for response BTU 1.
52(34)
Area'for building CW to transfer pad before response BTU 2.
56(38)
CHBSRCW
Out-stop CW with no chaining for response BTU 2.
60(3C)
Area for building CW to transfer pad before response BTU 4.
64(40)
CHBSARCW
Out-stop CW with no chaining for response BTU 4.
68(44)
CHBSRSPl
Response BTU 1 . indicates that the old secondary is now the primary.
182 (52)
CHBSRSP2
Response BTU 2 - indicates that the old primary is now the secondary.
96(60)
(Reserved)
1110(6E)
CHBSRSP4
Response BTU 4 - indicates that_a~ention time-out has expired on the primary CA.
124(7C)
(Reserved)
Data Area Layouts
67
CHCB
(EPIPEP)
CHANNEL CONTROL BLOCK
Program: EP/PEP
Size in bytes, 104(68) + CHVT
Created by' EP/NCP# goneration
Pointeno, CHCBADlat X710'forCHCBl (Type 114 CA),CHCBAD2 at X712'for
CHCB2 (Type 2/3 CAl
Function: Contains the queues, CHVT and other data unique to a particular channel
adapter.
0(0)
CASEl'
Channel Select Bits & PEP Flags
2(2)
4(4)
TERMADR
1
DDCCBADR
Terminator Address
6(6)
aCBFlAGS'
EP Flags
7(7)
Dynamic Subchan CeB Address
8(8)
ACCOUNT
Active
aCBTIO
Test I/O Control
Command Count
10(A)
12(C)
PDSOFRST
PDSOlAST
Priority Data SVC Out Queue
Priority Data SVC Out Queue
First Pointer
Last Pointer
14(E)
16(10)
PEDSOFST
Priority Extended Data SVC Out
Queue First Pointer
18(12)
PEDSOlST
Priority Extended Data SVC Out
Queue Last Pointer
20(14)
DSOFRST
Data SVC Out Queue First Pointer
22(16)
DSOlAST
Data svc but Queue Last Pointer
24(18)
EDSOFRST
EDSOlAST
Extended data SVC Out Queue
Extended data SVC Out Queue
First Pointer
26(lA)
Last Pointer
28(lC)
DSIFRST
Data SVC in Queue First Pointer
30(lE)
68
DSllAST
Data SVC in Queue Last Pointer
32(20)
EDSIFRST
EDSllAST
Extended Data SVC In Queue
First Pointer
Extended Data SVC In Queue
Last Pointer
3704 and 3705 Program Reference Handbook
(
CHCB
(EP/PEP)
34(22)
36(24)
SOFRST
Status Out Queue First Pointer
38(26)
SO lAST
Status Out Queue Last Pointer
40(28)
PSIFRST
PSI lAST
Poll Data SVC I n Queue
Last Pointer
Poll Data SVC In Queue
First Pointer
42(2A)
44(2C)
SNOFRST
Sense Out Queue First Pointer
46(2E)
SSFRST
Stacked Status Queue first Pointer
50(32)
TIOClOCK
1 51(33Reserved
)
TIO Clock
54(36)
SAVE63
Output X'S3' Save Area
58(3A)
SNOlAST
Sense Out Queue Last Pointer
48(30)
SSlAST
Stacked Status Queue Last Pointer
52(34)
SAVE62
Output X'S2' Save Area
56(38)
SAVETERM
Terminator Address Save Area
6O(3C)
Reserved
Reserved
62(3E)
Native Subchannel eGB (42 Bytes)
J 104(68)
Channel Vector Table (CHVTI
*Byte expansion follows
Byte Expansions
Offset/Field Name
Bit Patternl
Hex Value
Definition
0(0)
CASEl
byte 0
1 ...
....
PEP FLAG - bit on indicates that EP is
busy or a eGB is queued indicating pending
.x ..
....
No PI flag - bit on indicates that a PI is
6(6)
. QCBFlAGS
... 1
....
....
•• •X
byte 1
.1 ..
....
EP operation.
not required to give control to the queue
scanner.
Select control bit - Same as bit 0.3 of
Out 67. Bit is always on.
CA Select bit - Same as Bit 0.7 of Out 67 .
Bit off indicates CA no. one. Bit on indicates CA no. two.
Set PI - Same as bit 1.1 of Out 67. Bit is
always on.
byte 0
.... .1. .
Panel command flag .
Data Area Layouts
59
CHANNEL VECTOR TABLE
CHVT
(EP/PEPI
Program: EP/PEP
Size in byt..: Variable, depending on the number of subchannels specified.
I.ocated: At location X'68' in the Channel Control Block (CHCBI
Croated by: EP and NCP generation.
Rafennced by: Level 1 and level 3 routines.
Function: Allows the level 3 routines to find a line's CCB when only the subchannel
address is known. Allows levelt routines to initialize and reset the 3705 hardware
defined during generation.
2 thru n
0(01
CYACHVT
Subchannel addre....
n+l
CYACHEND
Addr... of the associated LNVT
entry for each of the line edapter
interfaces (each add..,s oceuplas
2 bytes.1 If _n, It point. to an
active LNVT entry. If odd, it
points to an inactive (dummy)
CCB.
n+3
X'OOOI'
Delimiter
CHVTPTR
Pointer to the naxt CHVT or the
first CHVT If thl. is tho last.
"n=thl numbor of line edapter interfaces multiplied by two (21, plus ona (1).
(
80
3704 and 3706 Program Reference Handbook
CALL·IN EXTENSION TO OVB
CIE
Program: NCP
Size in bytes: Variable.
Located in: DVB
Created by: NCP generation.
Pointer to CIE: DVBDIAL f.ield in
ova.
Function: Contains optional data required for servicing calls originated by a terminal on
a switched line
0(0)'"
CIEMTAP
Pointer to MTA list (last 18 bits). Included only if the device type is
multiple terminal access.
or
CIEIDL
Pointer to 10 list (IOU (last 18 bits). Included only if 10 verification is used
on the associated line.
CIEFLAGS*
Flags. The bit
definitions in
this field must
be identical to
those in the
COEFLAGS of
the call-out
extension (COE).
4(4)**
CIEIDCT
5(5)**
CIEIDPTR
Pointer to the 10 to be sent.
Count o,f send 10.
* Indicates a byte expansIon follows.
**These fields are present in the CtE only if sending of the control unit's identification
is required for this device .
... Actual position depends on other extensions that are present. The CIE follows any
polling"addressing, or input extensions to the DVB.
Byte Expansion
Offset/Field Name
0(0)
ClEF LAGS
Bit Pattern/
Hex Value
1.
.1.
.. 1.
... 1
. 1 ..
.. 1.
... 1
Contents
Flags.
Send hardware 10 is required.
Receive hardware ID is expected .
Dial digits are resident .
Call·in device (This bit is always one for CIE),
A dial request is pending for this device .
Disconnect with end of call has been receiVed,
Set Mode is required at telephone connection
with this device to set up proper physical
line characteristics.
Data Area Layouts
61
CHANNEL OPERATION Bloe~'
COB
(NCP1.2)
Program: NCP1. NCP2
Size in bytes: 12B(80}
(1
Created by: NCP generation.
Pointer to COB: CHSVH2 field in XDH.
Function: Contains the parameters and control fields used by the type 1 channel
adapter I/O supervisor.
COB Prefix
('
-24(-lB)
CXCAWQ
Channel work aCB. (For format, see Queue Control Block for Work Queues.)
-16(-10}
CXCAHQ
Channel hold aCB. (For format, see Queue Control Block for Work Queues.)
-8(-8}
CXCAECB
Event control block for leasing buffers. (For format, see Event Control Block.)
2(2}
O(O}
COBCND'
Channel condition flags.
4(4}
COBICND
Value of condition flags on last entry.
6(6}
COBXR77
Save area for external register X'77'.
B(B}
COBXR60
Save area for external register X'60'.
lOlA}
COBXR61
Save area for external register X'al'.
COBSR621
Save area for input from external reg-
ister X'52'.
12(C}
.
14(E}
COBXR620
Save area for output to external
COBXR63
Save area for external register X'63',
register X'S2' .
Indicates a byte expansion follows.
(
62
3704 and 3705 Program Reference Handbook
COB
(NCP1.2)
18(12)
16(10)
COBXR65
COBXR64
Save area for external
register X'64',
Save area for external register X'66'.
22(16)
20(14)
COBXR67
COBXR66
Save area for external register X'66',
24(18)
COBSENSE
25(19)
(Reserved)
Save area for external register X'67'.
28(IA)
C08CCMO
Current channel command.
Sense byte to
transfer for
sense commands.
28(IC)
COBERPSV
Error recovery procedure save area.
32(20)
C08RELSV
Release subroutine save area.
36(24)
C08NINSV
Save area for inbound BTU processor.
40(28)
COBLESV
lease subroutine save area.
44(2C)
COBPIB
Address of first inbound buffer.
48(30)
COBIPBF
Pointer to previous inbound buffer.
52(34)
COBCIB
Pointer to current inbound buffer.
56(38)
C08CIO
Current displacement in inbound buffer.
60(3C)
C08CBLK
Address of the last complete BTU given to the system router.
DatB Area Layouts
63
COB·
(NCP1,2J
64(40)
COBIBCO
Number of data bytes in current BTU.
66(42)
COBMOO
Maximum data
67(43)
(Reserved)
count for cur-
rent in-bound
buffer.
68(44)
COBMLCNT
NCP generated
buffer lease
count for inbound data.
69(45)
COBCLCNT
70(46)
COBECBAO
Address of ECB for leasing buffer.
Current buffer
lease count.
(Same as
COBMLCNT
except during
slowdown. when
this field equals
one.)
74(4A)
72(48)
COBWQAO
COBHOAD
Address of channel adapter work QCB.
Address of channel adapter hold aCB.
76(4C)
COBOXSV
Save area for outbound transfer routine.
80(50)
COBROTSV
Refresh outbound transfer routine save area.
84(54)
COBOBLKA
Outbound BTU address.
88(58)
COBOBUFA
Pointer to current outbound buffer.
92(5C)
COBODATA
Current displacement in outbound buffer.
98(92)
96(60)
COBFCCW
Number of host buffers allocated
per read list.
COBRCCW
Number of host CCWs remaining in
read list.
102(66)
100(84)
COBFHAC
Host buffer size in bytes.
COBRHAC
Number of bytes remaining in host buffer.
106(6A)
104(88)
COBRDCNT
Outbound buffer residual data count.
COBOXCNT
Number of bytes to be transferred on
next outbound data service.
(
(
84
3704 and 3706 Program Refer..... Handbook
COB
(NCP1,2)
110(6E)
108(6e)
COBHPTR
Pointer to dummy header buffer.
COBATTO
Attention time-out dUration.
112(70)
Dummy header buffer.
116(74)
COBHPAD
Number of bytes
117(75)
(Reserved)
118(76)
COBTPTR
Pointer to dummy text buffer.
in access
method pad O.
120(78)
Dummy text buffer.
124(7C)
COBTPAD
125(7D)
(Reserved)
126(7E)
COBDELAY
Number of bytes
in access
method pad 1.
Attention delay duration.
~ Byte Expansions
OffsetIField Name
0(0)
COBCND
Bit Patternl
Hex Value
Channel condition flags.
Byte 0
1. ..
. 1 .•
. . 1.
... 1
Attention status required.
Attention delay active.
Monitoring suppress out.
Inhibit attention time-out.
1. ..
Attention has been presented.
. 1. .
.. 1.
..• 1
Hold acB active.
Byte 1
. 1..
. .1.
•.. 1 •...
Channel end/device end status needed .
Work
ace active.
BTU rejected •
Channel in slowdown mode ..
Abon sent indication .
Data Area Layouts
65
CHANNEL OPERATION BLOCK FOR NCP#
COB
(NCP#)
Pmgram: NCP#
f\
Size in bytes: 128(80)
Created by: NCP Generation
Pointer to COB: CHSVH2 field in XOH (X'772')
Function: Contains the parameters and controJ,fields,used by the type 1hype 4 channel
adapter 1/0 supervisor.
-48(-30)
CX<:AXHQ
PIU exception queue {for format, see OCB. fa ... input queues).
·32(·20)
CXCAIQ
Channel intermediate aCB (for format, see aCB for work queues).
·24(.18)
CXCAHQ
aCB (for format, see ace for work queues).
Channel hold
·16(·10)
CXCAECB
Event control block for leasing buffers (for format, see
Event Control Block.)
-8(-8)
XXCXTCOB
Dump identifier. Characters "XXCXTCOB"
0(0)
2(2)
COBCNO'
I
CPBCASEL
Type 4 channel adapter
port selection mask.
0100=CA4 port 2
0000=CA4 port 1
Channel condition flags.
4(4)
6(6)
Reserved.
COBICNO
Condition flags on entry.
8(S)
10(A)
COBCCMD
COBSTAT
Current channel command.
12(C}
COBSENSE
13(0)
Reserved.
Sense byte to
transfer 1m
sense commands.
16(10)
Current status byte.
14(E)
COBRSX
Next Write Start
command expected. command expected.
(
,
lS(12)
COBXR77
COBXR80
oegister X?7'.
Save area for external
register X'SO'.
save- afeli for external
20(14)
22(16)
COBXR61
COBXR621
Save area for external
register X'Sl'.
Save area for input from
external register X'S2'.
24(18)
26(lA)
COBXR620
COBXR63
Save area for output from
external register X'62'.
Save area for external
register X'63'.
3O(lE)
28(lC)
88
15(F)
COBWSX
Next Read Start
COBXR64
COBXR65
Save area for external
register X'64 '.
Save area for external
3704 and 3705 Program Reference Handbook
register X'65'.
{\
COB
(NCP#I
-
34(221
32(201
COBXR66
COBXR671
Save area for input from
Save area for external
.-,
external register X'67' .
register X'56',
38(261
36(241
Reserved
COBXR670
Save area for output from
external register X'57'
40(281
COBIBTUA
Address of first inbound buffer.
"
..
44(2CI
COBIPBF
Pointer to previous inbound buffer.
48(301
COBIBUFA
Pointer to current buffer.
52(34)
COBIDATA
Current inbound data address.
56(38)
COBCBTUl
Address of first buffer of completed PI U
60(3C)
COBCBTUN
Address of last buffer of completed PIU.
64(40)
66(42)
COBBTUCT
Count of PI Us passed to
COBSKPCT
Number of PIUs to skip
path control.
68(44)
COBMDO
Maximum data
count for current
inbound buffer.
69(45)
Reserved.
for retry.
70(46)
COBMLCNT
Generation buffer
lease count for input
71(47)
COBCLCNT
Current buffer
lease count.
data.
72(48)
Reserved.
Data Area Layouts
67
COB
(NCP#)
76(4C1
COBIQBS
Address of last outbound PIU given to CXCAOUT.
80(501
I~)
COBOXSV
Save area for outbound transfer routine.
-
84(541
COBROTSV
Save area for outbound transfer routine.
88(581
COBOBTUA
Address of outbound PIU.
-
92(5C1
COBOBUFA
Address of outbound buffer.
"
96(601
COBOOATA
Address of outbound data.
100(841
102(661
Host Read CCW b.,... _ t .
104(681
106(6A1
COBRHAC
Host Read CCW byte count
residual out operation.
106(6C1
COBOXCNT
Number of bytes
to
...
COBFHAC
COBFCCW
Number of host CCWs.
109(601
Reserved.
COBROCNT
Outbound buffer residual
data count.
110(6E1
COBHWM
Attention delay CON
counter.
transfer for next
outbound data
service.
114(72)
112(701
COBPFAO
Address of PEP flag in
COB062RB
Output 62 reset!request
bucket
EP channel adapter
control block.
118(761
116(741
COBOELAY
COBATTO
Attention time-out duration.
120(781
122(7AI
COBOUMBF
Dummy buffer chain field.
124(7C)
Pad size as one
Attention delay interval.
124(70)
Reserved.
Offset to data.
1123(7B)
COBVPAO
Buffer data count.
126(7E)
Reserved.
~
byte of data.
BitPatteml
Offset/Field Name
0(0)
COBCNO
HexValua
eonlllntS
Byte 0
1 .•.
.1. .
. . 1.
•.• 1
Channel condition flags.
Attention status required.
Attention delay active.
Monitoring suppress out.
Inhibit attention time-out .
1...
. 1. .
Attention has been presented.
Channel endldevice el'Kl status needed .
Byte 1
. 1. .
.. 1. ....
68
Block rejected flag .
Channel in slowdown mode.
3704 and 3705 Program Reference Handbook
(
Program: NCP
Size in bytes: Variable, depending on
I~ngth
of dial digits.
Located in: DVB
Created by: NCP generation.
Pointer to CaE: DVBDIAL field in OVB.
Function: Contains optional data required to call a terminal on a switched line.
0(0)**
COESGTP
Address of device's switched group table (SGT) (last 18 bits).
..
\
W
COEFLAGS'
Flags. The bit
definitions of
this field must
be identical to
those in the
CIEFLAGS field
of the CIE.
4(4)"
COELCSTI
Index to LeST
(MTA only).
5(5)"
6(6)"
COEMAX
Maximum field
length of dial
digits.
COECUR
Current number
of dial digits.
7(7)"
COEDIAL
Dial digits.
(Variable length)
* Indicates a byte expanSion follows.
"Actual position depends on other extensions that are present.
Byte Expansions
Offset/Field Name
I ~~~FLAGS
Bit Pattern/
Hex Value
1. ..
. 1 ..
.. 1.
... 1
.1 ..
.. 1.
... 1
Contents
Flags.
Send hardware 10 is required.
Receive hardware ID is expected .
Dial digits are resident .
Call-in device. This bit is always zero for COE .
A Dial reql:Jest is pending for this device .
Disconnect with End of Call has been received .
Set mode is required at telephone connection
with this device.
Data Area layouts
69
Program: NCP
Size in bytes: Variable (header-10 bytes; each entry=18-35 bytes).
Created by: NCP generation.
Pointer to CRP: SYSCKRP field in HWE.
Function: Contains check records that have not yet been processed. These records are
generated by program levelland 3 error handling routines and are processed by a pro-gram level 5 routine (CXDIERT) that prepares buffers for transfer to the host as unso·
licited MOR (miscellaneous data recorder) records.
Header
2(2)
0(0)
CRPL1PTR
Pointer to next record unit to be
used by level 1.
CRPT1PTR
Pointer to the next level 1 unit to be
serviced by CXD IE RT.
6(6)
4(4)
CRPL3PTR
Pointer to next record unit to be
used by level 3.
8(8)
CRPSTAn'
Trigger control
byte.
19 (9)
CRPT3PTR
Pointer to the next level 3 unit to be
serviced by CXDIERT.
•
CRPSTAT2
(Reserved)
Entry Format
0(0)
CRPCTL
CRP co.ntIr~1 bytes.
CRPLNG'
Length of the
MOR data.
CRPFLG*
CRP flag byte.
Start of MDR Data (CRPDATA)
(Refer to Section 14 for Record Formats)
2(2)
5(5)
4(4)
CRPREC'
The recording
mode byte. (For
values, see table.)
S(S)
CRPID
MOR record 10
field. The 3705
MOR record is
always X'05'.
CRPABMAL
Abend malfunction code.
7(7)
CRPBERT'
CRPLCRT
Box error record
Lost check record
type code.
counter.
616)
Up to 29 bytes of formatted information. Remainder of MOR data.
(Refer to Section 14.)
*Indicates a byte expansion follows.
70
3704 and 3705 Program Reference Handbook
(\
CRP
Byte Expansions
Offset/Field Name
S(S)
(Header)
CRPSTATl
0(0)
CRPLNG
(Entry Formatl
.,1
Bit Patternl
Hex Value
Trigger control byte.
X'OO'
X'SO'
Trigger of CXOIERT is required.
Trigger of CXDJERT is not required.
length of MD R data.
Invalid record.
X'04'
X'12'
X'12'
X'12'
X'12'
X'12'
X'12'
X'12'
X'12'
X'14'
X'14'
X'14'
X'14'
X'14'
X'14'
X'IS'
X'IS'
X'19'
X'19'
Type 1/4 channel adapter.
Type 1 scanner.
Type 2
Type 2
Type 2
Type 2
4(4)
CRPREC
(MDR Data)
Invalid operation code.
Type 3 scanner-3.
Type 3 scanner-4.
Unresolved program level 1 interrupt.
Unresolved program level 3 interrupt.
Type 2 channel adapter-1.
Type 2 channel adapter-2.
Permanent line errors.
Line statistics.
CRP flag byte.
I ...
....
....
....
End of check record pool. (Bits 1·5
reserved).
.. I.
Record is being serviced by CXDIERT .
Check record unit has been used (filled),
requires service.
Recording mode.
Permanent line errors.
Line statistics.
Type 1/4 channel adapter.
Type 2 channel adapter·1.
Type 2 channel adapter·3.
Type 1 scanner.
Type 2 scanner·1.
Type 2 scanner·2.
Type 2 scanner·3.
Type 2 scanner-4.
Invalid operation code.
Input/Output instruction exception.
Unresolved program level 1 interrupt.
Unresolved program level 3 interrupt.
Invalid record.
Box error record type code.
Unresolved program level 1 interrupt.
Type 2 channel adapter-2.
Unresolved program level 3 interrupt.
Type 2 channel adapter·1.
Type 2 scanner-4.
Invalid operation code.
Type 3 scanner-4.
Type 2 scanner-3.
Type 3 scanner·3.
Type 2 scanner-2.
Type 3 scanner-2.
Type 2 scanner-1.
Type 3 scanner-1
Type 1/4 channel adapter.
Type 1 scanner.
X'OO'
X'OI'
X'10'
X'10'
X'10'
X'11'
X'II'
X'11'
X'!1'
X'II'
X'12'
X'12'
X'13'
X'13'
X'FF'
6(6)
CRPBERT
I
W:
I
scanner·1.
scanner-2.
scanner-3.
scanner-4.
Input/Output instruction exception.
Type 3 scanner-1.
Type 3 scanner-2.
1(1)
CRPFLG
Contents
X'OI'
X'02'
X'03'
X'Q4'
X'OS'
X'OS'
X'09'
X'10'
X'11'
X'20'
X'21'
X'40'
X'41'
X'84'
X'CO'
... 1
Data Area Layouts
71
CRP
Bit Patternl
Offset/Flold Name
Hex Value
7(7)
CRPLCRCT
xxxx
....
Contents
Lost check record counter.
Number of records lost immediately
preceding this record.
'., .. xxxx
Number of records lost while waiting for
this record to be transferred to the host.
Records are lost when the CRP is full and
level 5 is unable to free up a unit by trans-
f
<,
ferring a record to the host.
(
(
72
3704 and 3706 Program Reference Handbook
· Program: PEP, EP
Size in bytes: 48(30)
Located in: Routine eVAIS of module CY ASVC.
~ Created by: NCP & EP generation.
Updated by: N/A
Referenced by: ICP
Function: Contains the eCB command codes used for translating the 8·bit command
code into the 5-bit
ece command code.
0-47(O-2F)
CMDTA8LE
CeB command codes. (See Section 6.)
D... Areo Layouts
73
GTB
CONTROL TABLE
Program: NCP
Size in bytes: 71n
Created by: NCP generation.
Pointer to CTB: None. See link edit map.
Function: Indicates end of timer resolution queues. This table must be located at
least 25 bytes from start of a CSECT.
0(01
CTBDCCB
2(2)
4(4)
CTBUXREM
15(5) (Reservedl.
I
Du~:~Dw~?kRe~try.
________-r____________-"
6(61
1
(Reservedl.
Dummy character control block
~~______~OO~dTr~~s~.~________-t~~
(
Dummy
CCBTOREM.
(
(
74
3704 and 3705 Program Reference Handbook
COMMON PHYSICAL UNIT BLOCK
CUB
Program: NCP#
Size in bytes: 82152)
Created by: Phy~ical unit specification at NCP generation. One CUB is generated for
each physical unit.
Pointer to CUB: In RVT and in the SOT.
Function: Contains the
for a physical unit.
ace. status information, and scheduling information
Link Inbound Queue Control Block (See aCB for input queues for all bit definitions)
212}
010)
CUBLECB
Pointer to last element queued
(Shifted address).
CUBIECB
Pointer to first element queued
IShifted eddress}.
414)
6(6}
515)
CUBSTAT
CUBLINK
CUBPRKEY
OCB 10 flag and
Task and queue
status.
Pointer to next aCB on the
queue (Shifted address!.
task protection
key,
BIB)
CUBTSKEP
. ------r -----.
Task entry point (last 18 bits).
CUBMCBD
Major control
CUBSCHED
Task dispatching
block displacement.
priority.
141E)
121C}
CUBSAVE
CUBLUNK
Address of save area pushdown
list (Shifted address).
Pointer to previous aCB on queue
IShifted eddress).
16110)
lB112}
CUBLOBH
CUB LOBT
Unk outbound queue head pointer
Link outbound queue tai I pointer
(Shifted address).
IShifted address).
20114)
22116}
CUB LOSH
CUB LOST
Link outstanding queue head pointer
Link outstanding queue tail pointer
(Shifted address).
(Shifted address).
2411B}
CUBLKB
Address of link control block (last 18 bits).
CUBADRC
SOLe addressing
character.
-I
2B(IC)
30(IE}
CUBRSE
CUBSSCF'
Network address of resource.
Service seeking
control flags.
32120}
CUBSTATS'
33121}
CUBOCF'
34122}
Service seeking
output control
Station status.
T
CUBSSCP'
Contact poll
commands.
CUBTCNT
Transmission counter.
flags.
36124}
CUBAPIU
Address of physical services PIU (last 18 bits).
CUBTYPE'
Station type.
-,
Data Area Layouts
75
CUB
40(28)
CUBNR
NR receive
count.
41(29)
CUBNS
NS send
count.
42(2A)
44(2C)
CUBEERS
Extended retry
status.
(Note 2)
45(20)
CUBTRTCT
46(2E)
CUBOCL
Outstanding
count limit.
48(30)
CUBPNS
NS at time
49(31)
CUBPCNT
Pass limit.
CUBERS
Error retry status.
(Note 1)
Total retry
count.
(i
50(32)
CUBRTCNT
1""
of poll.
47(2F)
CUBCOC
Current
outstanding
count.
iev~1 E-RP re;ry -I-2nd I~vel- ERP ~et;Y
count.
count.
52(34)
CUBSRTLR
Second level retry
count.
53(35)
CUBRCMO'
Run command
modifiers.
54(36)
56(38)
CUBTERR
Monitor secondary
error.count.
57(39)
CUBERPT
2nd level ERP
time delay.
58(3A)
CUBERPCS
ERP control
flags send.
CUBLERPT
2nd level ERP
time-out value.
59(3B)
CUBOCLS
Outstanding
count limit
savearea
Physical Unit Processing Queue
60(3C)
62(3E)
CPQLECB
Pointer to last element queued
(Shifted eddress).
CPQ1ECB
Pointer to first element queued
(Shifted address).
64(40)
CPQSTAT
/65(4)
CPQPRKEY
Protection key.
Task and
______ _
66(42)
CPQLlNK
Pointer to next OCB on the queue.
queue status.
68(44)
~r
CPQTSKEP
~a~~e~~Y!~int (last 18 bits).
CPQMCBO
CPQSCHEO
Major control
block displacement.
Task scheduling
priority.
74(4A)
72(48)
CPQLUNK
CPQSAVE
Address of save area pushdown
Pointer to previous QC8
on queue (Shifted address).
list (Shifted address).
76(4C)
CUBPSTAT'
Physical unit
primary status.
177 (40)
CUBSSTAT
Physical unit
secondary sta~s.
80(50)
CUBSEGSZ
.
78(4E)
CUBMAXN
179(4F)
Reserved.
Segment size
(in buffers).
82(52)
Reserved
Maximum segment
size (in bytes) .
Indlcates a byte expansion follows.
Note 1: Refer to the LXBSTAT and LXBSTATC fields of the Link XIO Control Block
for a definition of the status bits.
Note 2: Refer to the LXBEXTST field of the Link XIO Control Block for a definition of
the status bits.
(
76
3704 and 3706 Program Refererice Handbook
CUB
Switched Extension
-)
.",
84(541
--------CUBLUN
Maximum
number of
CUBLUV
Pointer to LUV
(Last 18 bitsl
entries in
LUV.
fiI
Byte Expansions
Bit Patternl
Offset/Field Name
Hex Value
30(1 E)
CUBSSCF
Byte 0
Service seeking commands:
Poll skip flag.
Halt service seeking .
1 ...
. 1 ..
.. 1.
... 1
.J
CUBSSCP
Byte 1
1 ...
. 1 ..
.. 11 1 ...
.1. .
...
....
•• 1 .
... 1
.••1
....
32(20)
CUBSTATS
Poll command mask.
',Sf
Set Initialization Mode
M)
Exchange Identification (XID)
Contact poll command field .
Remote power-off in progress.
Output skip bit.
,I ..
Run terminator interlock.
. .1.
RNR received .
Second level delay in progress.
Duplex data .
·... 1
. 1 ..
.. 1.
... 1
36(24)
CUBTYPE
Half-duplex poll control.
Half.cfuplex poll in progress.
Station type:
x ...
l=Ouplex station.
•• 1.
•1 ••
•• 1.
.... .. .x
53(35)
CUBRCMO
O=Haff..:>IN\:J
I:.J\II:.I'I~IUI'\I
IU UVD
Program: NCP
Size in bytes: Variable, depending on addressing characters.
,Located in: DVB
-.treated by: NCP generation.
Pointer to DAE: (None.) Immediately follows polling extension; if no polling
extension is present, the DAE immediately follows the DVB.
Function: Contains addressing characters for a device.
W
11l)'
0(0)'
DAEOSP
DAEACUR
2(2)'
DAEADDR
Device output
delay.
Current number
Addressing characters. (DVBAO field
of addressing
in the DVB points here.) (variable
length)
characters
* Actual position depends on the extensions that are present.
Data Area Layouts
79
Program: NCP
Size in bytes: 9(9)
Located in: OVB extension.
Created by: NCP generation.
Poin...r to OIA: OVBINVO field in OVB.
Function: Contains information about input devices.
0(0)"
OIARVTE
Address of RVT entry (last 18 bits).
OIASA
Invite command
save area.
or
DIAMOD
Command
mcxfifiers.
4(4)"
1(1)" OlAF LAG
Flags. (See
"f'.
BCUFLAGS for
bit definitions;
bits 6 and 7 are
used as part of
RVT entry address.)
~.
616)"
DIASEQ
Command sequence number.
DIASRC
Source name field.
8(8)"
DIARD'
Record definition.
*Indlcates a byte expansion follows.
** Actual position depends on other extensions that are present.
Byte Expansion
Offset/Field Name
8(8)
DIARD
Bit Patternl
Hex Value
Contents
Record definition.
. 1 ..
. . 10
. .01
.. 11
EOB=EOT .
Message.
Block .
Transmission.
~.'
80
,
3704 and 3705 Program Reference Handbook
Program: NCP
Size in bytes: 24(18)
Created by: NCP generation.
~
Pointer to DRS: SYSDRSP field in HWE.
Function: Contains addresses of appendage routines to be given control by
CXCCPSUP.
2(2)
0(0)
DRSICW
Address of ICW display routine.
CTXDRS
Set to zero.
4(4)
6(6)
DRSICWA
Address of
(Reserved)
lew display routine.
10(A)
8(8)
(Reserved)
(Reserved)
12(C)
DRSTBL
Table of display/refresh/select control values used by individual
appendage routines.
(length of 12 bytes)
Data Area Layouts
81
Program: NCP
Size in bytes: Variable, depending on extensions present.
Created by: NCP generation. One DVB is generated for each BSC/SS device.
Pointer to OVB: RVTRP field; LCBDVBP field of LCB during session.
Function: Serves as the base for all component, terminal, and device control unit
representations. It includes queue control blocks plus all parameters required by a
device.
Device Work aCB
(See aCB for Work
aueu~s
for all bit definitions.)
2(2)
0(0)
DV01ECB
Pointer to first element queued.
(Shifted address.)
4(4)
DVOSTAT
Task and queue
status.
15(5)
OVOLECB
Pointer to last element queued.
(Shifted address.)
6(6)
OVOPRKEY
Protection key.
DVOLINK
Pointer
t(~~~!dQ~~~~s~)he queue.
Device Input aCB
(See aCB for I nput Queues for all bit definitions.)
8(8)
lOlA)
DVI1ECB
Pointer to first element queued.
(Shifted address.)
121C)
DVISTAT
Task and queue
status.
113(0)
DVIPRKEY
Protection key.
DVILECB
Pointer to last element queued.
(Shifted address).
141E}
DVILINK
Pointer to next QCB on the queue.
(Shifted address).
16(10)
DVITSKEP
Task entry point (last 18 bits) .
.
.
.
.
.
tl· . . . . "
17(11)
DVISCHED
Task dispatching
priority.
DVIMCBD
Major control
block displacement
20(14)
22(16)
DVISAVE
Address of save area push-down
list. (Shifted address.)
DVILUNK
Pointer to previous QCB on the queue.
IShifted address.)
24(18)
DVIBHSET
BH set (or BHR) address (last 18 bits).
DVIBHRST
BHR status bits.
T"·"" "
25(19)
DVIBHSCH
BHR scheduling
bits.
2811C)
DVBRID
Device resource ID.
I
3O(lE)
DVBFEAT1'
Device features
byte 1.
End of Device Input aCB
82
3704 and 3705 Program Reference Handbook
I
3111F)
DVBFEAT2'
Device features
byte 2.
DVB
32(20)
DVBPTR
Auxiliary pointer (last 18 bits). If device is component, this field contains pointer to
shared terminai OVB. If device is terminal, this field contains a pointer to line LeB.
-I
DVBTYPE*
Device type.
36(24)
DVBSDRT
Transmission counter or pointer to
OLTT control block, jf in test
38(26)
DVBSDRE
Temporary error
counter.
39(27)
DVBINVO
Offset to device
input area (DIA).
mode.
40(28)
DVBBHRO
Offset to BH R
extension.
41(29)
DVBBUO
Offset to
switched backup
extension (BUE).
42(2A)
OVBDIAL
Offset to call-in
or call-out
extension (el E or
COE).
43(2B)
OVBABNM*
Abnormal mode in-
dicators. This field
is meaningful only
when a reset is in
progress. Bits 2-7
have the value of
the command modi-
fiers when a reset
is in progress.
Bits 0-1 indicate
that a deactivation
is in progress.
Service Seeking Control Block (SSe)
44(2C)
DVBSTAT*
Status byte 1.
45(20)
DVBSTAT2*
Status byte 2.
48(30)
DVBPCC
Pending contact
count.
49(31)
DVBCPI
(Reserved).
46(2E)
I
OVBDMF*
Device mode flags.
Polling!Addressing Extension
This extension is present only if the device requires polling or addressing or both.
50(32)
DVBTLIM
Transmission
limit.
51(33)
DVBTCNT
Transmission
counter.
52(34)
DVBAO
Offset from
DVBSTATto
first addressing
character in
DAE.
53135)
DVBCLSO
Cluster general ppll
extension (CGP)
offset.
Polling Extension
The following fields are present only if polling of device is required. (If this area is
included, the device input extension (DIA) must also be included.)
54(36)
DVBPCUR
Number of polling
characters
excluding ENQ.
55(37)
DVBPOLL
Polling characters. (Variable length.)
*Indicates a byte expansion follows.
Data Area Layouts
83
DVB
Byte Expansions
Bit Pattern!
Offset/Field Name
3O(IE)
DVBFEATl
Hex Value
Contents
Device features byte 1.
1 ...
. 1 ..
.. I.
... 1
Block limit -
sse patch control. (NCP2, 3)
Conversational capability .
Buffered receive.
General poll .
I ...
. 1 ..
.. I.
... 1
Batched message input.
Carriage Teturn delay (NCP2. 3) .
Text time-out suppression .
Break-terminal originated data; transfer can
be interrupted.
31(lF)
DVBFEAT2
f\
r
Device features byte 2.
Critical situation notification.
1 ...
. 1 ..
.. 1.
•• • X
1...
. 1 ..
.. I.
... 1
1050 Auto EOB foature. (NCP2, 3) .
1050 Receive Interrupt feature. (NCP2, 3) .
(Reserved) .
Device on fan-out modem. (NCP2, 3).
Input extension exists (DIA) .
Addressing extension exists (DAE) .
~,
Polling information exists .
Device type.
32(20)
DVBTYPE
Components
2980
Non·SSC Terminals
MTA
1050
2740, Modell.
2741
2740, Model 2.
115A
S3B3
TWX
WTTY
X'4S'
X'SO'
X'S2'
X'84'
X'85'
X'S7'
x'as'
X'S9'
X'SA'
X'SB'
sse Terminals.
X'4C'
X'CO'
X'Cl'
X'C2'
X'C3'
X'C4'
X'C5'
X'C6'
X'C7'
X'CS'
X'CS'
X'CA'
X'CS'
X'CC'
X'CD'
X'CE'
X'CF'
X'DO'
43(2B)
DVBABNM
84
3275,3277,3284,3288
Logical connection terminals.
1130
1800
2701
2703
2715
2770
2780
fr
".
2972
3705
2020
2025
3271,3275
3780
3735
3741 (NCP2,3)
3747 (NCP2, 3)
f
Abnormal mode indicators.
Deactivate device in progress.
Deactivate line orderly in progress.
Reset at end of command in progress.
Reset conditional in progress.
1 ...
. 1 ..
.. 1.
... 1
x...
·(Resorvod).
. 1 ..
.. I.
... 1
Reset immediate in progress.
Reset device queue in progress .
Critical situation notification device
serviced.
3704 and 3705 Prowam Reference Handbook
~
DVB
Offset/Field Name
44(2C)
CVBSTAT
..;;
Bit Pattern!
Hex Value
1 ...
. 1 ..
.. 1.
... 1
1 ...
.1 ..
W
.. 1.
... 1
45(2D)
DVBSTAT2
1. ..
... 1
1 ...
.1. .
\
.. 1.
... 1
46(2E)
DVBDMF
Device active, accept TP commands .
Disconnect received .
A disconnect has been received for the last
session and an initiation command may
now be accepted. Any non-session initiating TP command should be refused.
In session.
Device in abnormal mode (reset or deacti-
vate device in programs).
Connection exists .
Invite pending .
Status byte 2.
Backup mode.
1/0 error lock •
3270 Device end. 2740·2 suppress MDR
Inquiry mode-2770 .
. 1 ..
.. 1.
"""
Contents
Status byte 1.
Service seeking skip bit.
Contact pending .
Byte 0
. 1 ..
.. 1.
... 1
. 1 ..
.. 1.
... 1
Byte 1
. 1 ..
.. 1.
.•. 1
1 ...
. 1. .
. .1.
Suppress response to host.
A noncompetitive Invite exists. When
the line or device was deactivated, an
Invite remained for this device.
Logical error lock •
Selective text return
Device mode flags.
Override write text mode ERPs .
Reject leading graphic (write operations) .
EIB deletion (non·transparent only) .
Inhibit time fill/inhibit WACK limit.
Embedded line control (non-transparent)/
intermediate control character insertion.
Critical text .
Override read text mode ERPs •
Reject leading graphics (read operations) .
EIB insertion/inhibit text timeout.
Sub-blocking (input).
Interrupt enabled •
Activate monitor mask .
Data-Ar•• Layouts
B5
ECB
~V~NICUNTHULBLUCK
Program: NCP
Size in bytes: 8(8)
Located in: Dynamically allocated BCU/PIU buffer or as a permanent control block in
storage.
Created by: NCP generation or dynamically as part of first buffer in a BCU.
Pointer to ECB: None.
Function: To control BCU status or event status of an associated block.
0(0)
ECBCSTAT',2
111)
ECBESTAT',2
BCU status
byte; valid only
for ECBs con·
tained in buffers.
Event status
byte.
414)
212)
ECBECHN'
ECB chain pointer. (Shifted address.)
(
616)
ECBTMINT'
ECBWOCB'
Set time interval as specified by
SETIME macros.
Address of waiting task's input aCB.
(Shifted address.)
or
ECBTNCT'
BCU text count.
1See block control unit for labels used in the first buffer of a BCU.
21ndicates a byte expansion follows.
Byte Expansions
Bit Patternl
Offset/Field Name
0(0)
ECBCSTAT
1(1)
ECBESTAT
Hex Value
1 ...
..00 00 ..
,.11 11.,
1 ...
. 1 ..
.. 1.
... 1
•• •X
Contents
BCU status byte.
BCU enqueued.
Lowest priority:
Highest priority.
Event status byte.
Event satisfied.
Task ready to be dispatched .
Supervisor link .
ECB enQueued bit:
1=Stop sending after this BTU .
()c:No need to stop sending.
f
(
86
3704 and 3705 Program Reference Handbook
EBCDIC CHARACTER DECODE DISPLACEMENT TABLE
ECDDT
Program: NCP, EP
Size in by... : 64(401
located in: Module CYABL.
Created by: NCP and EP generation.
Updated by: N/A
W
Referenced by: CYATADAO, CYARAPHI.
Function: Provides offset into branch table for proper control character processing.
I
0-3F(0-631
EBCXMTBT
Displacement data.
Data Area Layouts
87
HWE
EXTENDED HALFWORD DIRECT ADDRESSABLES
Program: NCP
Size in byt..: 4B(30): 50(32) for NCP2 and' NCP# with PEP.
Created by: NCP generation.
Pointer to HWE: SYSW6 field in XDA. (X'070S)
Function: Contains frequently accessed system halfword control' fields.
0(0)
2(21
SYSBUFCT
SYSBPQSC
Initial free buffer count.
Exit slowdown threshold count.
4(4)
6(6)
SYSATBP
Address trace block pointer.
S(S)
SYSCKRP
Check record pool pointer.
10(A)
SYSLTBP
Line trace block pointer.
12(C)
SYSPOBP
SYSORSP
Display/refresh/select table pointer.
14(E)
SYSEBCP
Panel control block pointer.
EBCDIC time and date control block
pointer.
16(10)
lS(12)
SYSTVSP
SYSLCSP
Time value select table pointer.
Line control select table pointer.
20(14)
SYSCOOP (NCP1, NCP2)
Channel work queue pointer.
or
SYSFQXP (NCP3)
FM request transporter aCB pointer.
24(lS)
SYSCRNP
Channel normal data pointer.
2S(lC)
SYSANSP
Auto-network shutdown queue pointer.
32(20)
SYSERTP
Error record transfer queue pointer.
36(24)
SYSPCBP
Panel queue pointer.
4O(2S)
SYSTMRP
Timer completion queue pointer.
44(2C)
SYSNIQP
Non·device input queue pointer.
48(30)
50(32)
SYSCHVTP
Pointer to EP channel vector
table (NCP2, NCP#)
88
3704 and 3705 Program Reference Handbook
(Reserved)
(
"-
HWE
Communication scanner 1 control bytes
~
52(34)
CSB1FLAG*
53(35)
CSB1SCNL
Scan limit
54136)
CSB1HISS
High speed
select
155137)
CSB1ASUB
Address
substitution
Communication scanner 2 control bytes
W
56(38)
CSB2FLAG*
57139)
CSB2SCNL
Scan limit
5813A)
CSB2HISS
High speed
15913B)
CSB2ASUB
Address
Substitution
select
Communication scanner 3 control bytes
-.
16013C)
CSB3FLAG*
61(3D)
CSB3SCNL
6213E)
CSB3HISS
Scan limit
J
63(3F)
CSB3ASUB
High speed
Address
select
Substitution
Communication scanner 4 control bytes
64(40)
CSB4FLAG"
65141)
CSB4SCNL
Scan limit
66142)
CSB4HISS
167143)
CSB4ASUB
High speed
select
Substitution
Address
68(44)
SVSPSBP
Pointer to the physical services
control block
72(48)
SVSSITP
Pointer to the sub·area
index table
7614C)
SYSSVTP
Pointer to the sub-area
vector table
*Indicates a byte expansion follows.
Byte Expansions
Bit Pattern!
.~
Offset/Field Name
Hex Value
Comments
52(34)
CSB1FLAG
x ... ....
••• X
l=Scanner installed
1=Scanner is a type 3
x ... ....
.... ...x
l=Scanner installed
1=Scanner is a type 3
x ... ....
.... ... x
l=Scanner installed
1=Scanner is a type 3
x ... ....
.... •••X
1=Scanner installed
1=Scanner is a type 3
....
~
56(38)
CSB2FLAG
6013C)
CSB3FLAG
64140)
CSB4FLAG
Data Area Layouts
89
ICE
ICE ROUTINE ADDRESS TABLE
Program: EP. PEP
Size in bytes: 84(54)
Located in: Routine eYAIS of module CYASVC.
Created by: NCP and EP generation.
Referenced by: Routine eVAIS of module CYASVC.
Function: Points to ICE routines for command processing.
0(0)
Unused
6(6)
4(4)
Address pointer to Write.
Address pointer to Write. (SSC)
(Start-stop) (CYACWR IS)
(CYACWRIB)
lOlA)
8(8)
Address pointer to ReacL (SSC)
Address pointer to Read.
(CYACREAB)
(Start-stop) (CYACREAS)
12(C)
Address pointers (2) to No-op.
~generaJ)
(CYACENOPI
16(10)
Address pointers (2) to Sense. (general) (ICESEN)
20(14)
Address pointers (2) to Wrap. (general) (ICEWRA)
24(18)
26(1A)
Address pojnter to Prepare.
Address pointer to Prepare. (BSC)
(Start-stop) (CYACPRES)
(CYACPREB)
28(IC)
Address pointers (2) to invalid code. (CMDERROR)
32(20)
34(22)
Address pointer to invalid code.
Address pointer to Write Break.
(CMDERROR)
(2848 Start-stop) (CYACBRES)
38(26)
36(24)
Address pointer to Poll.
Address pointer to Poll.
(BSC) (CYACPOLLB)
40(28)
(Start-stop) (CYACWRIS)
46(2E)
Address pointer to invaHd code.
(CMDERROR)
52(34)
Address pointer to Poll SOH.
(2260 start-stop) (CYACPOLS)
54(36)
Address pointer to, invalid code.
(CMDERROR)
Address pointer to Read Clear.
(2848 start-stop) (CYACRDCL)
58(3A)
56(38)
Address pointer to invalid code.
Address pointer to Break or
Diagnostic Poll. (Start·stop)
(CMDERROR)
(CYACBKPL)
62(3E)
60(3C)
Address pointer to Search. (BSC)
Address pointer to Search.
(CYACSEAB)
64(40)
(Start-stop) (CYACSEAS)
66(42)
Address pointer to Disable. (BSC)
Address pointer to Disable,
(lCEDISAB)
68(44)
(Start-stop) (lCEDISAB)
70(46)
Address pointer to Enable. (BSC)
Add.ress pointer to Enable.
(lCEENABL)
72(48)
90
(Start-stop) (lCEENA8L)
74(4A)
Address pointer to Dial. (BSC)
Address pointer to Dial.
(lCEDIAL)
(Start-stop) (lCEDIAL)
3704 and 3705 Program Reference Handbook
ICE
78(4E)
76(4C)
AddresS pointer to Adprep. (SSC)
Address pointer to invalid code.
(CMDERROR)
(CYACADPB)
80(50)
82(52)
Address pointer to Set Mode. (BSe)
Address pointer to invalid code.
(CYACSETB)
(CMDERROR)
Data Area Layouts
91
INTERFACE DISCONNECT DISPATCHER TABLE
lOOT
Program: NCP2. NCP#. EP
Size in bytes: 40(28)
Located in: Routine eVAIS of module CYASVC
Created by: NCP and EP generation.
Referenced by: Routine eYAIS.
Function: Contains address pointers to IFD and CAEC routines.
0-39(0-27)
(
IFDADDR
IFO address table.
0(0)
2(2)
No action, TID (00) command.
Address pointer for Write (08)
(CAEC180)
command. (IFDWRI)
6(6)
4(4)
Address pointer for Read (10)
No action. No-op (18) command.
command (IFDREA)
(CAEC180)
10(A)
8(8)
Address pointer for sense (20)
No action. Wrap (28) command.
command (CAEC190)
(CAEC180)
14(E)
12(C)
ERROR (38)
Address pointer for Prepare (30)
command. (lFDPRE)
18(12)
16(10)
Address pointer for
Address pointer for Poll (48)
command (I FDPOL)
Write Break (40)
command (lFDWRI).
20(14)
22(16)
Address pointer for
Poll SOH (58)
command (lFDWRI).
Address pointer for Inhibit (50)
command (lFDREA)
24(18)
Address pointer for
Read Clear (60)
command (lFDREA).
26(lA)
Address pointer for Break (68)
command (IFDWRI)
28(lC)
Address pointer for Search (70)
command (lFDREA)
3O(lE)
32(20)
34(22)
Address pointer for
Disable (78)
command (CAECL80).
AddE~:bf~m~{ for
Dial (88)
command (lFDIAL).
command (I FDENA).
36(24)
(
Address pointer for
38(26)
Address pointer for
Address Prepare (90)
Address pointer for Set Mode (98)
command. (lFDSTMD)
command (lFDPRE).
(
92
3704 and 3706 Program Reference Handbook
IDENTIFICATION LIST ENTRY
IDE
Program: NCP
Size in bytes: Variable
.,;
Created by: NCP generation.
Pointer to IDE: None. Follows IOL.
Function: Contains one entry for each valid I D that can be received over a line or lines
for which the list is being used.
The IDE has the following format if device association is not possible.
1(1)
0(0)
IDELEN
ID length
1
1 2 (2)
IDEFLAG'
Entry flags.
I D characters.
(Variable length.'
IDEPADL
Length of maximum number of pad characters needed for alignment .
..;;
The IDE has the following format if device association is possible.
0(0)
IDEDVBP
Pointer to DVa (last 18 bits).
IDELEN
10 length
4(4)
..
.
T
IDEFLAG*
Entry flags.
-,
I D characters. (Variable in length.)
IDEPADL
Length of maximum number of pad characters needed for alignment.
Indicates a byte expanSion follows.
iI*Follows 10 characters.
Byte Expansions
Offset/Field Name
Bit Patternl
Hex Value
1(1)
IDEFLAG
1. ..
. 1 ..
.. 1.
Contents
Entry flags.
Device association is possible for this entry.
End of list .
Notify host if no match. (Meaningful only
for first and last entries of list.)
Data Area Layouts
93
IDENTIFICATION LIST HEADER
IDL
Program: NCP
Size in bytes: 4(4)
~.. )
Located in: Beginning of identification list.
Created by: NCP generation.
Pointer to IOL: CIEIDL field in CIE.
Function: Precedes the first entry in an 10 list tor switched sse lines whose terminals
identify themselves. The list is required only if validity checking of the incoming lOis
required.
(
0(0)
2(2)
IDLSIZE
Maximum number of bytes in
Halfward to force fullword alignment
the list
for first entry.
(
94
3704 and 3705 Program Reference Handbook
INPUT/OUTPUT BLOCK
lOB
Program: NCP
Size ... bytes: 3(124)
Created by: NCP generation.
Pointer to lOB: LCBACBP
Function: Contains status of BSC/S5 I/O operations.
0(0)
10BIMCTL*
Immediate con·
trol flags.
4(4)
10BEXTST'
Extended status
field. Contains
error indicators.
8(8)
1(1)
10BCMANO*
5(5)
10BCMOOS'
lOB command modifiers.
6(6)
10BSTAT*
Outcome of command operation.
10BROESC
Record descriptor
byte.
10(A)
9(9)
10BEREST
First error extended
status. This field
is set equal to
2(2)
I/O command
field.
IOBRTYCT
RetrV count for
first level ERP
10BERST
~
attempts.
IOBEXTST when
first error staws. This field is set
equal to IOBSTAT when the first
recoverable error occurs.
------------IOBLTSM
the first recover-
SCF mask field
(when OLLT active)
able error
occurs.
13(0)
10BOFSET
12(C)
10BSTOFS
Initial data offset,
used to locate the
starting point
in the first
buffer of a
block.
f--------
14(E)
10BOATAP
. Final data offset
used to locate
the buffer posi·
tion of the last
character in the
block that was
stored. Zero if
buffer tS fitled.
-------
Data pointer to first buffer in the
block. (Shifted address.1
----- --------
10BTCBPT
Pointer to OLlT
(when OLLT active).
16(10)
18(12)
IOBFNLPT
Pointer-to last buffer in chain
(Shifted address.)
or
IOBLTCT
Transmit or Recive count (OLlT).
IOBINPUT
Input control data address. Contains
the address of the first buffer when
buffers are needed to store a reply to
text, selection, or inquiry. (Shifted
address.)
IOBLTL2
Secondary CCB L2
(when OLLT active).
* Indicates a byte expansion follows.
Data Area layouts
95
lOB
20(14)
IOBOUTPT
Output control data address. For Write commands, contains the address of
the text data in buffers.
21(15)
IOBCTCCT
Control count.
Address of the field to be transmitted.
Number of charac-
ters to be transmitted from field
addressed by the
(
output control
data address.
or
IOBLTLAB
Pointer to lookahead buffer (OlLTLAB)
26(1 A)
24(18)
IOBLCB
Pointer to the line control block.
(Shifted address.)
IOBBKSIZ
Received block's size (number of data
characters stored).
28(lC)
IOBPOll
Address of the entry in the service order table for the next station to be
polled minus two, used when the communications controller is the master
station (last 18 bits).
IOBSSCB
Service seeking
control byte.
29(10)
10BMTASA
MTA 1050 station
address byte.
30(lE)
IOBTRAOR
Station select address for the communicatians controller when it is a
tributary station.
32(20)
IOBSEl
Address of the field that contains the selection address for the station to be
selected by the communications controller (last 18 bits).
- - - - -1-33(21)
- - - IOBCRTN
Carriage
position.
IOBPFLAG'
PEP flag field_ (NCP2, #)
"Indicates a byte expansion follows.
(
{ "
'"
96
3704 and 3705 Program Reference Handbook
lOB
Byte Expansions
Bit Pattern!
Offset/Field Name
...J
0(0)
10BIMCTL
Hex Value
Contents
1 ...
. 1 ..
.. 1 .
... 1
Reset immediate.
Immediate control flags.
Write request - conditional reset .
Monitor mode,
1...
1(1)
10BCMAND
it
!J
2(2)
10BCMODS
Send interrupt.
Conditional send interrupt.
110 command field.
X'10'
X'12'
X'16'
Write initial.
Write continue.
Write recover.
X'lr"
Write delay. (NCP2, #)
X'19'
X'25'
X'27'
X'28'
X'2A'
X'83'
X'8D'
X'8F'
X'94'
X'9B'
X'AC'
Write.
Read.
Read delay. (NCP2, #1
Read initial.
Read continue.
Disable.
Enable.
Dial.
Write EDT.
Write control.
Read status.
lOB Command Modifiers.
Byte a
1 ...
.1 ..
. .1.
... 1
Suppress lost data.
Override text mode ERPs.
Reject received leading graphics .
Inhibit text time-out (start-stop),
ITS mode not transparent (SSC).
1...
.1 ..
. .1.
... 1
Byte 1
1 ...
.1 ..
.. 1.
... 1
'iI
1...
. 1 ..
. .1.
... 1
"'"
4(4)
10BEXTST
Sub-blocking mode.
Inhibit WACK limit (SSC). Inhibit time
fill (start-stop).
Enable length check. ITS mode transparent .
Hold buffers .
Reset.
Send priority. Manualdial (Enable cmd only) .
ETX (Write commands). Single polilRead
commands).
Offset (Write commands). First buffer
assigned (Read commands).
Insert (Write commands). Send leading
graphics (Read commands). Send
identification (Enable) .
Transparent text (Write commands). Send
positive ACK (Rea(fcommands).
Identification mode (Enable) .
Set negative ACK (Read commands). SOH
(Write commands). Multiple terminal
access mode. (Enable commands.)
Set alternate ACK.
Extended status field.
1 ...
. 1. .
.. 1.
... 1
Overrun/underrun .
Line quiet time·out .
OLE format exception.
Sub-block error:
W
Data Area Layouts
97
lOB
Ofuet/Field Name
Bit Pat ~,Jrnl
HexV.Jlue
IOBSTAT
Contents
..Ioutcome of command operation.
6(61
Byte 0
Flags
Extended error status.
Format exception (bad line control
sequence).
Sync check (stop bit error start·stop only),
1 ...
.1 ..
.. 1.
... 1
... 1
Data check (block check character error) .
Length check •
Read/Write Group Masks
000.
001.
. 010.
011.
100.
101.
110.
111.
No errors.
Receive text.
Receive text reply.
Receive control; command reject.
Status outstanding when command issued;
command not executed.
Send text reply.
Send text.
Send control.
Data Set Control Group Masks
000.
No errors.
001.
010.
011.
100.
101.
110.
111.
Receive ID.
Receive ID reply.
Connect.
Status outstanding when command issued.
Error in dialing phase.
Send ID.
Disconnect.
Byte 1
33(211
IOBPFLAG
x...
.x ..
.. X.
•. X.
. .•x
Extended (line) response. See Section 7.
PEP flag field. (NCP2, #!
Line type:
O=NCP
'l=EP
PEP switchable line:
O=Not switchable.
1=switchable.
Line-active save bit.
O=Line inactive at time of switch.
1:::Line active at time of switch.
Part of (OBSEL address .
Part of IOaSEl address .
*-~
~
(
(\
98
3704 and 3705 Program Reference Handbook
LCB
LINE CONTROL BLOCK
"'-tIm: NCP
Size in bytes: Variable, depending on line-type extensions.
" '1
W
Crutad by: NCP generation, one for each BSCISS line..
Pointer to LCB: RVTRP field in RVT,
Function: Contains fields required for (1) scheduling line operations, (2) maintaining
line--significant status information, and (3) requesting I/O operations from the commu-
nications I/O program (levels 2 and 3).
Line I/O QCB ILCBlIOQ)
(See aCB for Input Queues for all bit definitions.)
DID)
2(2)
LCI1ECB
Pointer to first element queued.
LCIL6CB
Pointer to last element queued.
IShifted address.)
(Shifted address.)
4(4)
6(6)
5(5)
LCISTAT
Task and queue
LCIPRKEY
Protection key,
LCILINK
Pointer to next QCB on the queue
IShifted address.)
status.
BIB)
LCITSKEP
Task entry point. (last 18 bits)
9(9)
Major control
LCIMCBD
LCISCHED
Trigger
block
scheduling
displacement.
priority.
121C)
141E)
LCISAVE
Address of save area push-down
list. (Shifted address.)
LCILUNK
Pointer to previous aCB on the queue.
(Shifted address.)
16(10)
LCIBHSET
BHR or BH set address (last 18 bits).
LCIBHRST
BH R status bits
T·· .... ,
17(11)
LCIBHSCH
BHR sc.heduling
bits.
Line Work QCB ILCBLWQ)
(See aCB for Input Queues for all bit definitions.)
Note: By format, this is an Input aCB. Line Work aCB is simply the name
given to this particular Input aCB.
20(14)
LCW1ECB
Pointer to first element queued.
IShifted address.)
22(16)
LCWLECB
Pointer to last element queued.
IShifted address.)
Data Area Layouts
99
LCB
24(18)
LCWSTAT
Task and queue
status.
25(19)
LCWPRKEY
Protection key.
26(lA)
LCWLlNK
Pointer to next OCB on the queue.
(Shifted address')
28(lC)
LCWTSKEP
Task entry point (last 18 bits).
29(lD)
LCWSCHED
Trigger
LCWMCBD
Major control
block
displa"cement.
scheduling
priority.
32(20)
34(22)
LCWSAVE
Address of save area push-down
list. (Shifted address.)
LCWLUNK
Pointer to previous OCB on the queue.
(Shifted address.)
36(24)
or
LCBACBP
Pointer to adapter control block.
LCBPEPSC
Suhchannel of
EP equivalent
line. (NCP2, #)
40(28)
LCBLTCTP
Line type command table .pointer (last 18 bits).
LCBLSTAT*
First line status
byte.
44(2C)
I
LCBDVBP
Pointer to device base for device currently connected over line (,last 18 bits).
. LCBTYPEC; .\
Line type code.
48(30)
LCBDBCU
Pointer to the Activate or Deactivate BCU when activate line, deactivate
line orderly, or deactivate group orderly is in progress (last 18 bits).
......
LCBMFLAG
_ ~C~ fl~gs,- _
or LCBLLGN
LLG number.
\
*Indicates a byte expansion follows.
100
3704 and 3705 Program Reference Handbook
{
"
Lee
52(34)
LCBSSP
Subtask sequence pointer.
56(38)
LCBACTNS'
Actions to be
taken when
unusual condi·
tions arise on the
57(39)
LCBUSER
Offset to beginning of user
area.
54(36)
LCBFEAT1'
LeB features.
55(37)
LCBLST2'
Second line
status byte.
58(3A)
LCBERPL
Second level
59(3B)
LCBERPC
Second level error
error recovery
procedure loop
recovery pro-
limit.
counter.
cedure loop
line.
60(3C)
LCBEoEL
61(30)
LCBCOFFL
Duration of delay
SUb-block cutoff
between second
level ERP loops.
limit.
64(40)
62(3E)
LCBCOFFC
SUb-block cutoff
counter.
63(3F)
LCBIOCOM'
110 communication byte.
66(42)
LCBCSCNT
LC8RI0
Count of pending Invite and Contact
Resource ID of the line.
commands for the line.
Multipoint Extension
Line Suspended Sessions OCB (LCB LSSQ)
(See aCB for Work Queues for all bit definitions.)
68(44)
70(46)
LCS1ECB
Pointer to first element queued.
(Shifted address.)
72(48)
LCSSTAT
Task and queue
status.
173(49)
LCSPRKEY
Protection key
LCSLECB
Pointer to last element queued.
(Shifted address.)
74(4A)
LCSLlNK
Pointer to next aCB on the queue.
(Shifted address.)
*Indicates a byte expansion follows.
Data Area Layouts
101
LCB
76(4C)
LCBESOTP
Address of service order table (last 18 bits).
LCBEPAUS
Pause between
passes through
service order table.
80(50)
81(51)
LCBENAKL
82(52)
LCBESERL
Service seeking
scan limit.
Negative poll
response limit.
84(54)
83(53)
LCBMS
LCBAS
Maximum number
Attempted sessions
of sessions
allowed.
86(56)
85(55)
LCBWS
LCBCS
Suspended con-
Connections
nections count.
work count.
count.
87(57)
LCBENOD
Number of de-
Number of devices
vices 'an this
line.
remaining when
deactivating line.
LCBEDIG
88(58)
LCBSOTCT
BSC/sS devices in
buffer delay not
QUt8SCed count
for multipoint
lines.
Switched Extension
68(44)
LCBESGTP
Address of primary switched group table (SGT) (last 18 bits).
LCBEFLAG'
"
"
"
"
"
Switched
extension flags.
"
"'
72(48)
lCBELCDI
Address of logical connection device input (LCD!) OVB.
*Indicates a byte expansion follows.
(
102
3704 and 3705 Program Reference Handbook
LCB
Byte Expansions
Bit Pattern!
U
Offset/Field Name
Hex Value
40(28)
LCBLSTAT
1 •..
Contents
First line status byte.
....
Line active. A line is active (can ateept TP
commands) from the completion of an
activate line operation until the receipt
by line management of a deactivate line
request. A line is inactive (cannot accept
TP commands) from the receipt by line
management of a deactivate line request
until the completion of an activate line
W
.1. .
....
Active session .
. .1.
... 1
.J
Work scheduler idle .
1. ..
I
.1 ..
I
....
....
44(2C)
LC8TYPEC
.. 1 •
••• 1
Byte 0
. 1 ..
.• 1 .
....
..• 1
~
54(36)
LCBFEATl
1=Duplex
SSC line .
Multipoint line .
Switched line .
LCB Ilags.
Buffer delay wait.
Critical situation message write started .
1 .•.
. 1 ..
.. 1.
Multipoint tributary.
Point-to-point secondary .
Lca features.
Dial type (NCP2. #):
l=auto
O=manual
Speed change capability (NCP2, #)
1 •••
••• X
~
·Multipoint backup (NCP#)
Mode switch (NCP2. #)
l=EP
O=NCP
Second line status byte.
1 ...
. 1 ..
.. 1.
... x
'if
Extension exists .
The meaning of this bit is relevant only if
bit 7 {switched) is one. If one, this line
changes physical characteristics, via set
mode, with each new telephone connection. If zero, line has same characteristic
for every connection.
1. ..
. 1. .
••• 1
55(37)
LCBLST2
Service seeking in progress. Switched
enable, for call-in, is active on this line.
Reset immediate or deactivate line halt
caused an immediate X 10 to be issued on
this line. See LCBLST2 to determine
actual terminal operation.
o LTT in progress .
. OLLT in pr~ress .
Line type code.
SDLC •
Mode (NCP2. #):
O=Hall duplex
• 1 ..
.. 1.
... 1
48(30)
LCBMFLAG
operation.
Line is in abnormal mode. A Reset or
Deactivate is in progress for rome device
on this line. See LCBLST2 to determine
actual operation.
1...
Deactivate line halt in progress.
Deactivate line orderly in progress.
Activate Line in progress .
Current dial method (NCP2, #):
l=auto
Q=manual
Monitor mode in progress.
(NCP2.#)
Data Area Layouts
103
LCB
Bit Pattern!
Offset/Field Name
Hex Value
Contents
.X ..
Line mode bit
l=backup
•• X.
Monitor reset bit (NCP2, #1:
O=normal
1 =delay monitor reset
Q=reset now
... 1
f
line speed change in progress, {NCP2,#1
Actions to be taken when unusual condi,
56(381
LCBACTNS
tions arise on- the line.
Shutdown of this line pending.
Deactive line orderly, (OLD) Error status
1.
.x.
(when active).
.1.
.1
1.
.x.
l=Error-terminate OLD
Q=No error-process OLD
Service suspended sessions.
Single service seek .
Respond to current read with RVI.
Negative poll response limit reached:
l=hreak logical connection
O=no break
. .x.
... 1
63(3FI
LC810COM
I/O communication byte.
1
. 1 ..
.. 1.
... 1
1.
.1.
.1.
... 1
68(441
LCBEFLAG
104
Negative poll response limit reached:
l=reschedule Read
Q=terminate
Monitor line for attention or disconnect .
(NCP2, #1
Partial block sent.
Session suspension required .
Send 10 .
Transparent text selection .
End of text block (ETB) received.
Conversational mode.
BHR point 2 execution required after 110
is completed.
Last block ended with ETX .
Switched extension flags.
1.
.1.
.. 1.
... 1
Part of a switched group.
Call·in line .
Call·out line .
Telephone connection exists .
3704 and 3705 Program Reference Handbook
.
~..
LINE CONTROL SELECTION TABLE
LCST
Program: NCP
Size in bytes: 16(101 per entry; number of entries defined at NCP generation.
Created by: NCP generation, ~ne for each start-stop line.
Pointer to LCST: SYSLCSP field in HWE.
Function: Used to change ACB control fields for Multiple Terminal Access (MTA),
Entry Format
0(0)
2(2)
LCSTSPED
Line speed.
4(4)
LCSTLGT
Line group table address.
6(6)
LCSTRTDT
LCSTTTDT
Receive translate decode table
address.
Transmit translate decode
table address
(high order byte).
The low-order
byte is the character to be
7(7)
LCSTSMDE
Set mode serial data
(SDF) constant.
translated.
8(8)
LCSTSTBL
State table address.
10(A)
LCSTRTRY
limit.
12(C)
LCSTCRTN
Carriage return
rate factor (55
only).
13(D)
LCSTLSIZ
Maximum print
line size (55
only).
11(8)
LCSTBCUT
Text error retry
Buffer cutoff
limit (receive).
14(E)
LCSTBG
Background table address.
Data Area Layouts
105
LGT
(EP& PEP)
LINE GROUP TABLE
Program: PEP, EP
Size in bytes: Variable (8 bytes per GROUP macro).
Created by: NCP and EP generation.
Located: Immediately following CCSs.
Updatad by: CCB
Referenced by: LCP, ICP
Function: Contains information about a group of lines. It contains an entry for each
GROUP macro coded by the user.
1(1)
0(0)
LGTREPLY
Reply time-out
in tenths of a
second.
4(4)
2(2)
LGTTET
Text time-out in
tenths of a second.
LGTEOT
End of transmissionfor RPQ
andWTTY
(optional).
3(3)
(LGTEOB)**
character.
6(6)
5(5)
LGTLlNE*
Line information
byte.
LGTCHARS
Ending TTY
7(7)
LGTENDCR*
TTY end
character
Reserved
controls
* Indicates a byte expanSion follows.
nlf bit 3"of byte LGTLlNE is off, this byte contains the EOB character. If bit 3 of
LGTLINE1is on, this byte contains the second ending TTY character.
Byte Expansion
Offset/Field Name
Bit Patternl
Hex Value
4(4)
LGTLlNE
...x ....
.... x ...
Contants
Line information byte.
Presence of TTY ending characters:
O=present
1=00t present
Data character detect security
.x ..
O=Security (Start-5top lines)
I=No security (BSC)
Line type:
.. X.
XON character control:
•• •X
O=utilize
1=inhibit
XOFF char.eter control:
O=switched
1=non-switched
O=utilize
1=inhibit
TTY end character controls.
6(6)
LGTENDCR
1 •••
FIGS·X-LTRS sequence for EOT. The value
of X is byte 5 (LGTEOT).
.1. .
Four character sequence for EOT. The value
.. 1.
of the character is in byte 5 (LGTEOT)_
FIGS-Y sequence for EOB. The value of Y
is in byte 3 (LGTEOB)_
.•. 1
Four character ending sequence for EOB .
The value of the character is in byte 3
(LGTEOB)_
.. 1.
Five-character transmit-tumaround-delay
flag.
_._1
106
Ten-character-transmit-turnaround-delay
flag_
3104 and 3705 Program Reference Handbook
(
LGT
(NCP)
LINE GROUP TABLE
Program: NCP
SiZe in bytes: Variable depending
or line type.
Created by: NCP generation.
Pointer to LGT: CCBLGPT field in CCB.
Function: Contains line control parameters.
0(0)
LGTTYPE'
Terminal type
2(2)
1(1)
LGTENORI
LGTSHTAP
Shoulder tap
Receive text status/ERP vector.
time'outs~
identification.
change mask.
6(6)
4(4)
LGTENOR3
LGTENOR2
Receive text reply status/ERP
vector.
8(8)
LGTTIMEA"
Control time-out
command (error
time-out).
9(9)
LGTTIMEB"
Transmit time-
(long) time-out
out command
(shoulder tap).
13(0)
LGTRIPCF
Transmit initial
Receive initial
LCOIPCF value.
LCOIPCF value.
16(10)
I1(B)
LGTTIMEO··
10(A)
LGTTIMEC··
Receive text
command.
12(C)
LGTXIPCF
Receive control reply status/E RP vector.
ResPonse time~out
command.
15(F)
LGTCMRTY
14(E)
LGTlNST
Initial level 2
Control mode ERP
state mask.
..
retry limit.
18(12)
LGTLATO
Remote activity time field. (NCP#)
;8(121-------- 19(i3T- ------LGTCMO
LGTINCHR
Pointer to command decode table.
Initial control
LGTCOUNT
Write EOT com-
mand initial control
character count.
character.
Type 1 Scanner Extension
20(14)
LGTMASK
Character size tag mask. (See
BCBMASK for bit definitions),
22(16)
LGTLCPCF
LCOIPCF for
23(17)
LGTBREAK
type 1 scanner,
Start-stop transmit
break mask. {See
(S.. BCBLCPCF
BCBBMASK for bit
for bit definitions.)
definitions.)
·Indicates a byte expansion follows.
**Error time-outs are expressed as x'ex', Go to TVS DSECT and
displace into TVS bV a value of X for timer values. Shoulder tap
time·outs are x'ax'.
Data Area Layouts
107
LGT
(NCP)
24(18)"
LGTWACKL
BSe received
WACK limit
25(19)*'
LGTTID
ase received
TTD limit value.
26(IA)"
LGTSYN
BSC SYN char·
aeter line code.
27(IB)*'
LGTR1ST
Receive initial state
set after connect.
value.
or LGTPOLLG
or LGTPADCT
Start-stop selee-
Start-stop poll
tion address
address length.
Start-stop motor
start pad count.
or LGTSELG
length.
(
sse Line and EBCDIC Characters
28(IC)'*
LGTDLEEB
DLE.
32(20)"
LGTDLES
DLE.
36(24)"
LGTDLEO
DLE.
40(28)"
LGTDLER
DLE.
44(2C)*'
LGTNAKE
NAK EBCDIC.
48(30)"
LGTDLEW
DLE.
52(34)"
LGTETBA
ETB ASCII.
56(38)"
LGTENCA
ENQASCII.
29(10)'*
LGTETBE
ETB EBCDIC.
33(21)'*
LGTSTXE
STX EBCDIC.
37(25)'*
LGTACKO
ACKO.
30(1 E)'*
LGTDLEOT
DLE.
34(22)"
LGTDLEIB
DLE.
41(29)'*
LGTRVIE
RVI EBCDIC.
45(2D)*'
LGTSOHE
SOH EBCDIC.
49(31)"
LGTWACK
WACK.
42(2A)"
LGTDLEEQ
DLE.
46(2E)"
LGTDLEEX
DLE.
50(32)"
LGTSOHA
SOH ASCII.
53(35)*'
LGTETXA
ETXASCII.
54(361"
LGTEOTA
EOT ASCII.
57(39)"
LGTNAKA
NAKASCII.
58(3A)"
LGTDLEA
DLE ASCII.
38(26)"
LGTDLEI
DLE.
3111F)"
LGTEOTE
EOT EBCDIC.
35(23)*'
LGTlTBE
ITB EBCDIC.
39(27)"
LGTACKI
ACKI.
43(2B)"
LGTENQE
ENQ EBCDIC.
47(2F)"
LGTETXE
ETX EBCDIC.
51(33)'*
. LGTSTXA
STX ASCII.
55(37)"
LGTITBA
ITB ASCII
UDisplacement will be four bytes less if type 1 scanner is not present.
c
108
3704 and 3705 Program Reference Handbook
LGT
(NCP)
Start/Stop Line and EBCDIC Control/Characters
(Label used dependent on terminal type.)
28(IC)**
LGTUPPER
Upshift.
W
32(20)"
LGTEOTI
Circle C or figs.
29(10)**
LGTETB2
Circle B.
33(21)"
LGTCIRO
30(IE)"
LGTLOWER
31(IF)*'
LGTEOT2
Down shift.
Circle C or H.
or LGTEOT3
Letters.
or LGTTEOT
EOT
34(22)"
LGTVTAB
35(23)**
LGTHTAB
Circle D.
Vertical tab.
Horizontal tab.
or LGTWFIG
Figs.
or LGTWLTR
Letters.
or LGTWNULL
Null.
Horizontal tab.
or LGTCIRC
or LGTTNUL
Null.
or LGTTVT
Circle C.
..;
or LGTTHT
Vertical tab.
or LGTSTXl
Space or carriage return.
36(24)**
LGTLF
37(25)"
LGTCRLF
38(26)"
LGTSPACE
Space.
39(27)**
LGTBKSP
Backspace.
line feed.
Carriage return.
or LGTWTAB
Tab.
or LGTWCR
or LGTSTX2
Carriage return.
Carriage return or
line feed.
orLGTTCR
or LGTTLF
Line feed
Carriage return.
or LGTCR
Carriage return
or line feed.
40(28)**
LGTPAO
Pad.
~
41(29)**
LGTIOLE
Idle.
or LGTTPAO
Pad.
or LGTWE081
Idle.
or LGTBPAD
Pad.
or LGTSTX3
Idle.
42(2A)**
LGTSPEC
43(2B)*'
LGTPRC
(Reserved).
Prefix.
or LGTWEOB2
EOa sequence.
or LGTTEND
END.
or LGTWEOB3
END.
or LGTWPAO
Pad.
"Displacement will be four bytes less if type 1 scanner is not present.
~
Data Area Layouts
109
LGT
(NePI
44(2CI"
LGTCIRN
NAK.
or LGlWEOB4
NAK.
45(2DI**
LGTRES
Restore.
or LGTWEOTl
EOT1.
46(2EI**
LGTRSTP
Reader stop
47(2FI"
LGTETBI
Circle B.
or LGTTXOFF
XOFF control
or LGTCIRB
character
CircleS.
or LGlWEOT2
EOT2.
or LGTTXON
XON control
character
or LGTWEOT3
EOT3.
48(301**
LGTCIRY
CircleY
or LGTWEOT4
EOT4.
52(341'*
LGTPON
Punch on.
49(311**
LGTBYP
50(321"
(Reserved)
Bypass
or LGTWXCHl
Ending character
53(35)**
LGTDELET
Delete.
or LGTWXCH2
Ending character
54(381**
LGTESLSH
Slash. (EBCDIC)
(
51(331**
LGTPF
-
Punch off.
--
orLGTWXCH3
Ending character
55(371**
LGTESPCE
Space (EBCDICI
**Displacement will be four bytes less if type 1 scanner is not present.
Bit Patternl
Offset/Field Name
0(01
LGTTYPE
Hex Value
Contents
Terminal type identification.
X'OO'
X'02'
X'04'
X'06'
X'OS'
X'OA'
X'OC'
X'OE'
X'14'
X'lC'
X'ID'
X'20'
X'22'
X'24'
X'26'
X'4A'
X'4C'
X'4E'
X'6A'
X'6C'
X'6E'
X'8C'
X'8E'
2741.
2740 Basic.
2740 Station Control.
2740 Transmit Control.
2740 Station Control with checking.
2740 Transmit Control with checking.
2740 with checking.
2740 Model 2 with checking.
2740 Model 2 without checking.
1050.
MTA.
TTYI·B (83B31.
TTYII.
TTY World Trade.
TTYI·A (115AI.
SSC EBCDIC point-to-point station.
BSC EBCDIC control station.
(
sse EBCDIC tributary station.
BSC ASCII point-to-point station.
sse ASCII control station.
BSC ASCII tributary station.
SOLe Primary station.
SOLe Secondary station.
(
110
3704 and 3705 Program Reference Handbook
LKB
LINK CONTROL BLOCK
.......m: NCP#
Size in bytes: 40(28)
Created by: NCP Generation. One for each link.
Pointer to LKB: RVT
Function: Contains fiekts for scheduling link operation and for maintaining link status
information.
Queue Control Block (See aCB for input queues for bit definition)
0(0)
2(2)
LKW1EC8
LKWLECB
Pointer to first element queued
(Shifted address).
4(4)
5(5)
LKWSTAT
LKWPRKEY
Task and Queue
acB 10 flag and
status.
task protect key.
Pointer to last element queued
(Shifted address).
6(6)
LKWLlNK
Pointer to next ace on the queue
(Shifted address).
8(8)
LKWTSKEP
Task Entry Point (Last 18 bits) .
....
.. "1" ......
LKWMCBO
LKWSCHEO
Major control block
Task dispatching
displacement.
priority.
12(C)
14(E)
LKWSAVE
LKWLUNK
Pointer to previous aCB on queue
(Shifted address).
Address of save area pushdown
list (Shifted address).
16(10
LKBNWAOR
Network address of link.
20(14)
21(15)
LKBSVTO
LKBSWST"
SVT displacement.
Switched status
(Remote only)
flags.
18(12)
LKBSTAT"
Status of link.
22(16)
19(13)
LKBTYPE"
link type.
23(17)
LKBSNQC
Stations not
quiesced count.
(ANS)
Reserved.
24(18)
-------1
LKBTCHN
LKB chain pointer. Points to an alternate
link's LKB. (Last 18 bits.)
LK8BLMST"
Rem~e link backup
monitor and status
28(lC)
Reserved
36(24)
LKBACBP
Address of adapter control block.
* Indicates a byte expansion follows.
Data Area Layouts
111
LKB
Byte Expansion
Offset/Field Name
Bit Patternl
Hex Value
18(121
Contents
Status of link.
LKBSTAT
1 ...
.,...
. 1 ••
.. 1.
•.• 1
.. 1.
•.. 1
19(131
The link is active; an Activate Link
command has been successfully
processed.
Activate link in progress.
Deacti~ate Link in progress•
Link quiesce pending. (Auto network
shutdown)
OLIT in progress •
OLLT in progress .
Link type.
LKBTYPE
1. ..
. 1. .
•• 1.
••. 1
1. ..
. 1..
Leased.
Switched .
One or more clusters attached to this link •
One or more remote controllers are attached to this link.
One or more tenninals are attached to
this link.
Secondary link .
~~
__~'
Switched status flags.
21(151
LKBSWST
1. ..
. 1..
.• 1.
••. 1
24(181
Connection exists.
Link in answer mode .
Dial in progress,
Switched Enable pending .
Remote backup link monitor and link:
status.
LKBBLMST
1. ..
• 1..
.. 1.
..• 1
Link to local controller.
The current link to the local controller.
Start or continue monitoring links to the
local controller.
Currently monitoring links to the local
controller.
f
(
,~
112
3704 ~nd 3705 Program Reference Handbook
LLG
LOGICAL LINE GROUP CONTROL TABLE
Program: NCP1, NCP2
~Size
in bytes: 12(C) plus 4 bytes for each line in the line group.
Created by: NCP generation.
Pointer to LLG: RVTRP field in RVT.
Function: Consists of a line scan parameter area, plus one pointer to the LeB for each
line in the line list.
0(0)
LLGBCUP
.LLGFLAGS'
-----
-,
Pointer to current group (last 18 bits) .
Logical line
group flags.
4(4)
16 (6)
LLGNOL
LLGLTG
Number of lines to go.
Number of lines in group.
8(8)
LLGOSET
Current offset into line table.
12(C)
LLGPTR
Pointer to the LeB for the first line in this group. Pointers to subsequent lines in the
group follow this field. If this is the system (LLGFLAGS, bit 0 on), this field is set
to zero and no other pointers follow it.
.
Indicates a byte expansion follows.
Byte Expansions
Offset/Fieid Nama
Bit Pattarnl
HaxValua
LLGFLAGS
Contenu
Logical line group flags.
0(0)
1. ..
.1. .
.. 1.
This is the LlG for the system.
LLG in use.
At least one line requires waiting before
group operation complete.
Data Area Layouts
113
LNVT
(Type 1)
Pragram: NCP, EP
Size in bytes: 161101 for each line.
Located: Starts at storage
loca~ion
X'BOO'.
Created by: NCP and EP generation.
Referenced by: Level 2 routines.
Function: Allows the level 2 routines to find a line's eGB when only the line address is
known.
~0~.1~5~(0~·F=)~-------------------------------------------'
t:
BCB for the first line.
16·31(10·1 F)
8CB for the second line.
I
n·n+F
BCB for the last line.
(
(
114
3704 and 3705 Program Reference Handbook
LINE VECTOR TABLE (for Type 2 scanner I
LNVT
(Type 21
Program: NCP. EP
~ Size
in bytes: Variable, depending on number and type of communication scanners
wattached and on the highest line interface address specified.
I'
-
Located: Starts at storage location X'840'.
Created by: NCP and EP generation.
Referenced by: EP and NCP level 2 routines.
~ Function:
Allows the level 2 routines to find a line's eeB when only the line address is
.known.
2-n
0(01
Address pointer to corresponding
ACB (NCPI or CCB (EP).
Two bytes for 'each line interface
address:
Data Area Layouts
115
LINE TRACE CONTROL BLOCK
LTCB
Program: NCP
Size In bytes: 32(20)
{I
Created by: NCP generation.
Pointer to LTeB: CXTCCT address at CXBCTRC in link edit map, or SYS l TBfield in
HWE. The l TeB is located 36 (24) bytes beyond this address.
Function: Contains the pertinent parameters for the line trace function. For duplex
operation two LTCBs are required. one for transmit leg and one for the receive leg.
0(0)
2(2)
CCTL2
Address of normal level 2 character
CCTSTATE
References the pseudo state address
table used to invoke line trace.
service routine when trace first
started on this line.
6(6)
414)
CCTACB
CCTCUT
Buffer limit per
line trace control
Pointer to the ACB for the line
being traced.
7(7)
CCTMAXBF
Maximum number of
buffers that can be
transferred across
the channel with one
block.
~.
host Read.
lOlA)
818)
CCTSAVE
Save area for link address.
CCTTlME
Timer control field for line trace.
CCTTMOUT
Interval timer
field for line
trace.
11(B)
CCTTENTH
Tenth second timer
started when trace
began.
141E)
121C)
CCTBCB
CCTCHAR
Address of vector to this line's ACB.
Count of the number of buffer locations
remaining in the current buffer.
16(10)
CCTHDBUF
Pointer to first buffer in current chain (last 18 bits).
CCTBFMAX
Maximum number
of buffers to be
filled before trans·
ferring diagnostic
units to host.
20(14)
CCTITIME
(
21(15)
22(16)
Unused.
CCTEPBAR
BAR for EP line
(NCP2)
Initial value of
interval timer field
for line trace.
24(18)
CCTDATA
Address of next diagnostlc unit to be stored (last 18 bits).
. -. . .; 1
F
CCTBFSZD
Number of bytes
in full trace
buffer.
28(1C)
CCTSTART
Pointer to beginning of current buffet (last t8 bits).
*Indlcates a byte expansion follows.
116
3704 and 3705 Program Reference Handbook
It"
LINE TRACE CONTROL BLOCK (NCP#)
LTCB
(NCP#)
Program: NCP
Size in bytes: 72(48)
Created by: NCP generation
Pointer to LTCB: CXTCCT address at CXBCTRC in link edit map, or SYSLTB field in
HWE. The LTeB is located 36(24) bytes beyond this address.
Function: Contains the pertinent parameters for the line trace function. For duplex
operation two LTeBs are required-one for the transmit leg and one for the receive leg.
0(0)
2(2)
CCTL2
Address of normal level 2 character
CCTACB
Pointer to the ACB for the line
being traced.
service routine when trace
first started on this line.
4(4)
6(6)
Reserved
CCTWORK
Timer work entry tor
8(8)
ceT.
10(A)
CCTUNK
CCTTIME
for line trace.
- Timer
- control field11(B)
Pointer to the next ACB in level
2-3 chain, since the eGa is
queued as the dummy ACB.
"
12(C)
"
CCTTMOUT
CCTTENTH
Interval Timer
Tenth second timer
field for line
trace.
started when trace
began.
14(E)
CCTBCB
CCTFLAG*
CCTFLAGs field for CSB"
Address of vector to this line's ACB.
16(10)
18(12)
CCTSCNT
CCTCHAR
Field to accumulate status byte
oount.
Count of the number of buffer loca·
tions remaining in the current
buffer.
20(14)
22(16)
CCTDCNT
CCTEN01
Fiel.d to accumulate data count.
Line status for queuing.
24(18)
CCTDATA
_
..
_
..
CCTBFSZO
~dress
_
~~mber of bytes in
full trace buffer.
of the next diagnostic unit to be stored.
"I
28(IC)
CCTSTART
CCTRTT*
Pointer to the beginning of the current buffer.
Line type
"'
Data Area Layouts
117
LTCB
(NCP#I
32(201
341221
CCTITIME
Initial value of interval
timer field for line trace.
CCTEPBAR
BAR for EP line.
36(24)
-
-
_
.. _
..
__
-
a-a
CCTHDBUF
Pointer to first buffer in current chain.
CCTBFMAX
Maximum number
of buffers to be
filled before
transferring
diagnostic units
to the host.
40(2BI
CCTL3
Address of level 3 copy routine
4412CI
42(2AI
CCTCUT
Buffer limit per
line trace block.
43(2BI
CCTMAXBF
Maximum number of
buffers per BTU on
channel.
46(2EI
CCTSAVE
Save link address.
48(301
CCTCTL
Control flags. Must always equal zero.
501321
CCTESTAT
Expected ending status.
CCTCHRl
Number of buffer locations
remaining in the buffer during copy.
52(341
CCTDATAI
Contains the address of the next data position when control
is passed to the copy routine.
56(381
CCTSTRTI
Pointer to the current copy buffer.
60(3C)
CCTDDATA
Save field for the pointer to the current data character to be copied
during transfer of buffers because of buffer cutoff.
64140)
CCTDSTRT
Save field which contains the current data buffer pointer during
transfer of buffers.
6BI441
CCTDSAVE
Data pointer save field during transfer of buffers.
··-·ccTf)CHR---Save field which
contains the
residual data
count during
transfer.
*Indicates a byte expansion follows.
('
118
3704 and 3705 Program Reference Handbook
LTCB
(NCP#I
Byte Expansion
Bit Pattern!
Offset/Field Name
Hex Value
Contents
CCTFLAGs field for a type 3 scanner
14(EI
during copy.
CCTFLAG
1=Receive
x ...
Q=Transmit
l=SSC
O=SDLC
l=Branch and link from C):{BCOPY3
O=Not
.x ..
.. X.
••• X
l=Currently processing insert function
.... x ...
l=Leading Graphics transmitted
O=Not
O=Not
.x ..
l=Buffer request for BCe store
•• X.
1=Level3 copy active
O=Not active
l=ITB received (Adjust for BCC)
Q=No buffer store request
••• X
O=Not ITS
2S(lC)
CCTRTT
Une type
X'OO'
X'SO'
X'CO'
Half-duplex
Duplex
Duplex-transmit leg
Data Area Layouts
119
fi
LINE TEST CONTROL BLOCK
LTS
(NCP1,2)
Program: NCP1, NCP2
Size in bytes: 36(24)
Created by: NCP generation.
Pointer to LTS: Located at CXTLTS in CXSGMISC.
Function: Contains control information for panel test operations.
0(0)
1(1)
LTSPDSYN
PAD orSYN
LTSCTL*
Control byte.
2(2)
3(3)
LTSXTPCF
LTSMSDF
character for
The system gen·
erated Set Mode
The system
generated LCD
this line.
·SDF.
value.
4(4)
6(6)
LTSLNAD
The line address of the line being
tested.
LTSSVL2
The saved CCBL2 for the line being
tested.
8(8)
LTSDIALL
Buffer for non X'FF' receive data characters or autaeall dial digits.
(16 byte.)
24(18)
26(IA)
DLiMETER
Counter for non X'FF' data characters
DIGCNTR
Counter for autocall dial digits and
receive data characters.
when receiving.
28(IC)
30(1E)
LTSACLN
LTSL2
Autocailline address.
Address of entry point for level 2
interrupt.
34(22)
32(20)
ALLONES
LTSSVL3
Constant of all ones.
Saved level 3 address used in a
dial operation.
* Indicates a byte expansion follows.
(
Byte Exponoionl
Offset/Fiold Name
0(0)
LTSCTL
Bit_nf
/fexValue
Contents
Control field.
Line is initialized.
1. ..
.x ..
..1.
..• 1
. ···t X
1 zduplex
= half d·uplex
o
Autocaliline .
•••
..•. ••• 1
Monitor-ring-indicator is installed .
1 = Command has not ended •
0= Command has ended.
Emulation line..
(
120
3704 and 3705 Program Reference Handbook
LINE TEST CONTROL BLOCK
~
0(0)
LTSCTL *
Control byte 1.
i
LTS
(NCP#)
Program: NCP#
Size in bytes: 56(38)
Created by: NCP generation.
Pointer ... LTS: Located at CXTLTS in CX5GMISC.
Function: Contains control information for line test operations.
1(1)
LTSPOSYN
3(3)
2(2)
LTSSTMO
LTSLCO
PAD or SYN charac-
The system
ter for this line.
generated Set
Mode SOF.
The system
generated
LeB value.
6(6)
4(4)
LTSXLAO
LTSRLAO
Duplex, receive-line address.
The line address of the line being tested.
S(S)
LTSROATP'"
Receive buffer address.
LTSOIALL
Buffer for receive data characters or auto-call dial digits.
(16 bytes)
.J
26(1A)
24(1S)
LTSNFCNT**
Count for nonX'FF' data
LTSOCNT
Counter for non X'OQ'data
characters when receiving.
characters when receiving.
2S(1C)
LTSERCNT
SOLe receive error counter.
Reserved**"
31(1F)
30(1E)
LTSTURN
LTSOCNT
Transmit turn
Counter for auto-call
dial digits and receive
LCO/PCF.
data characters.
34(22)
32(20)
LTSACLN
Auto-call line address.
LTSXL2
Transmit level 2 pointer.
3S(26)
36(24)
LTSOATAP
LTSRL2
Receive level 2 pointer.
4O(2S)
LTSRCCI
Rev. compare
character 1
41(29)
LTSRCC2
Rev. compare
character 2
Transmit buffer pointer.
42(2A)
LTSRCC3
43(2B)
LTSWAPI
Rev. compare
character 3
Transmit swap
buffer 0
compare
character
~
~"
44(2C)
LTSWAP2
Transmit
swap buffer 1
4S(3O)
LTSXCNTl
45(20)
LTSXENOO
Buffer 0
residual transmit
count
49(31)
LTSRCVMO*
Buffer 1
total transmit
Receive
46(2E)
LTSXCNTO
Suffer 0 total
transmit count
47(2F)
LTSXENOl
Buffer 1
residual transmit
count
50(32)
LTSBCC
Received
Bee characters
options
count
~
--,., ,'1
52(34)
LTSBUFSV***
LTSNLCHR**
~
i;;i,"'" -- .
Next to last
LTSLCHR*'
Last received
ReV character
dlaracter
54(36)
LTSCTL2*
Control byte 2
Reserved
* Indicates a byte exoansion follows.
**Type 2 communication scanner only
.... -Type 3 communication scanner only
Data Area Layouts
121
LTS
(NCP#)
Byte Expansions
Offset/Field Name
O(O}
tTSCTL
Bit Patternl
HexVah.
x ...
.x ..
..x.
...x
.... x ...
.x ..
..x.
•• • X
49(31}
LTSRCVMD
xxx .
. ..x
....
....
.... x •..
.L .
.. L
... 1
54(36}
LTSCTL2
x ..•
.x ..
..x.
•••X
Contents
Control byte:
1=lnitialized.
O=Not initialized.
l=Command has not ended .
O=Command has ended.
1=Auto call .
O=No auto call.
1=Monitor·ring·indicator.
O=No monitor·ring-indicator.
1=Ouplex adapter •
O=Half-duplex adapter.
I=SDLC
O=NotSDLC
I=CCBL2 is set-up•
o=cca L2 is not set·up.
1=EP line•
O=NCP line.
(Reserved).
1=Two character compare on receive .
O=One character oompare.
(Reserved)
Modem test active •
asc BCC accumulation on RCV.
SOLC acc accumulation on RCV •
Control byte 2
1=Line on type 3 scanner
O=Line not on type 3 scanner
1=New sync
O=No new sync
I=NRZI mode
O=Non NRZI mode
1=Scan received data
O=No scan
(Modem test, only)
~~
"
\,
)
..'
f)
122
3704 and 3705 Program Reference Handbook
LUB
LOGICAL UNIT CONTROL BLOCK
Program: NCP#
Size in bytes: 53(35)
Created by: NCP generation LU macro.
Pointer to LUB: RVT (leased link). LUV (switched link)
Function: Provides aCBs, status, and control information for a logical unit.
LU/SSCP Process Queue Control Block *
2(2)
0(0)
LULLECB
Pointer to last element queued
(Shifted address).
LUL1ECB
Pointer to first element queued
(Shifted address).
4(4)
LULSTAT*
1 5 (5)LULPRKEY*
Task and queue
status.
6(6)
LULLINK
Pointer to next ace on the queue
(Shifted address).
aCB I D flag and
task protect key.
B(8)
LULTSKEP
Task entry point (Last 18 bits) .
. ------'1'
LULMCBD
Major control
LULSCHED
Task dispatching
block displacement.
priority.
12(C)
14(E)
LULLUNK
Pointer to previous aCB on queue
(Shifted address).
LULSAVE
Address of save area pushdown
list (Shifted address).
APPULU Process aueue Control Block'
16(10)
18(12)
LUALECB
LUA1ECB
Pointer to first element queued
(Shifted address).
20(14)
LUASTAT
Task and queue
status.
24(18)
1
21(15
LUAPRKEY
aCB) I D flag and
task protect key.
- -----r
LUAMCBD
Major control
block displacement.
Pointer to last element queued
(Shifted address).
22(16)
LUALINK
Pointer to next aCB on the queue
(Shifted address).
LUATSKEP
Task entry point (Last 18 bits).
LUASCHED
Task dispatching
priority.
28(lC)
30(IE)
LUASAVE
Address of save area pushdown list
(Shifted address!.
LUALUNK
Pointer to previous QCB on queue
(Shifted address).
*See QCB for Input Queues for all bit definitions.
Data Area Layouts
123
LUB
32(20)
LUBCUB
Address of Common Physical Unit Block (CUB)
(Last 1B bits)
LUBCSTAT
Reserved.
1
36(24)
38(26)
LUBNALU
Network address of this logical unit.
40(28)
LUBCPSET'
Session control
primary status.
41(29)
LUBCSSET'
Session Control
LU8TCNT
Transmission counter.
42(2A)
LUBNAPL
Network address of application
currently in session
secondary status.
44(2C)
45(2D)
46(2E)
LUBAPSET'
LUBASSET'
LUBM
Appl ication primary Applicationsecondary
Pacing
status.
parameter M.
status.
48(30)
LUBPC
Pacing count.
I
47(2F)
LUBN
Pacing
parameter N.
49(31)
LUBLALU
Local address of
logical unit.
, I ndlcates a byte expansion follows.
Terminal Node (type 1 PU) Extension
The following seven haltwards are for terminal node
sequence number management.
50(32)
LUBAOSLU
SSCP-LU expedited
outbound identification.
52(34)
54(36)
LUBSOSLU
LUBAOLLU
LU-LU expedited
outbound identification.
SSCP·lU normal
outbound identification.
56(38)
58(3A)
LU-LU normal
inbound sequence number.
LUBSOLLC
LU·LU normal
outbound check.
62(3E)
60(3C)
LUBSOLLS
LU-LU normal
outbound save.
124
3704 and 3706 Program Reference Handbook
LUBIDGN
Identification number
gen.
LUIS
Byte Expansions
:'
\
W
Offset/Field Name
40(28)
LUBCPSET
Bit Patternl
Hex Value
1 . . . . . ..
. 1 . . . . ..
... 1 .. ..
.... 1 .. .
41(29)
LUBCSSET
44(2C)
LUBAPSET
45(20)
LUBASSET
Session established.
Exception condition exists.
Processing Activate Logical .
Processifl~_Deactivate Logical .
SCP secondary status:
Processing Clear.
1 ...
Application primary status:
1 ...
. 1 ..
~ .. 1
1 ...
. . . . . 1 ..
J
Contents
SCP primary status:
Session established.>
Exception condition exists.
Processing Bind.
Processing Unbind.
SO LC/BSC path function. (LUB-4
contains the address of the SPB)
Application secondary status:
x ...
.x ..
.. x.
... 1
1 ...
. 1 ..
.. 1.
... 1
1=Processing Clear.
O=Not processing.
l=Awaiting pacing from LU .
O=not waiting.
1:::Pace required by host.
O=not required.
Null BB PIU pending.
INB
BB PIU pending •
PB I 0 pending •
Bracket state management mode .
Data Area Layouts
125
LOGICAL UNIT VECTOR TABLE (LUV)
LUV
Program: NCP#
Size in bytes: One 4-byte entry for each ~ogical unit that can be assigned to a switched
SOLe link (specified at NCP generation),
t ')
-
Created by: NCP generation.
Pointer to LUV: CUBLUB field in CUB.
Function: Used to locate the logical unit control blocks {LUBs) that are assigned to a
switched SOLC link.
LUV Entry
0(0)
.1' .. P?i~te~
'LUVLA
Local address of
LUVLUB
t?
~UB1'
(Last 18 bits)
1(1)
LUVFLGS'
Status flags.
logical unit.
*Indicates a byte expansion follows.
Byte Expansions
Offset/Fieid Name
1(1)
LUVFLGS
Bit Pa.ternl
Hex Value
1. ..
.1. .
....
....
Contents
LUV status flags.
Last entry in LUV.
Entry in use,
(
126
3704 and 3705 Program Reference Handbook
LINK XIO CONTROL BLOCK
LXB
Program: NCP#
U
Size in bytes: 36(24)
Created by: NCP Generation
Pointer to lXB: By LKBACBP field in LKB
Function: Contains the status of SOLe link operations
2(2)
LXBCMODS*
LXBCMAND*
Command modifiers field.
1/0 command.
_~oo~mm=and~fl~~S.~_ _ _ _~_ _~=~
4(4)
5(51
6(61
7(71
LXBEXTST*
LXBRBLUC
LXBSTAT*
LXBSTATC*
Extended
Received BlU
Command ending
Completion code
0(0)
~
1(1)
LXBIMCTL *
Immediate control
__
error status.
command field.
8(8)
LXBEREST
First error
extended status,
see LXBEXTST.
9(9)
LXBRTYCT
ERP retry count.
status field.
byte of status.
10(A)
LXBERST
l11B)
LXBHSTAT
First error status.
Set upon first
recoverable error,
Hold SOLe status.
or
LXBLTSM
SCF mask field. (when OLLT is active).
12(C)
Space for OLTTIOB/XIO oommands.
or
LXBAEXP
Address expected
I
14(E)
LXBDATAP
Pointer to first buffer of data
received.
or
LXBSTYPE
Station polled
.. in -response
- - CUB/SCB
- - type- field. or
LXBTCBPT
Pointer to OllT control block.
18(12)
16(10)
- --
LXBFNLPT
Final buffer pointer.
or
LXBPOLLT
Poll Cycle start time
-
--- -
-
-
- - or
-
LXBINPUT
Input control-data pointer to
command reject (CMDR) data received.
-
or
LXBLTL2
Secondary CCBl2 (when OllT active).
LXBLTCT
Transmit or Receive count (Oll T).
22(16)
20(14)
LXBQOFF
l2/l3 block overrun queue
_ he_ad po_inte~. _ _
_
_
_
J21(15)
_ _
_
_
_
LXBQON
l2/l3 block overrun queue
_ ta~ poin~er.
_
_ Spa..ce fo! O~IT ~OB!XIO_ com_ma~s _
or
LXBLTLAB
Pointer to lookahead buffer (OllTlAB)
_
24(18)
LXBLKBP
Pointer to line/link control block.
(shifted address).
_
26(lA)
LSBBKSIZ
Received block size
(number of data characters stored).
*Indlcates a byte expansion follows.
Data Area Layouts
127
LXB
2S(lC)
LXBPOLL
Pointer to current SOT entry being polled.
(Half-duplex and duplex receive leg, primary stations only.)
30(1 E)
LXBCPCMO
Contact poll
command executed.
or
LXBRACBP
Pointer to receive leg of a
duplex link (transmit leg only).
32(20)
LXBSEL
Output SOT pointer-pointer to current station
that I format data YJas sent to (primary stations only).
~.
~.
34(22)
or
LXBXACBP
Pointer to transmit leg of a
LXBCPOLL
Contact poll offset
into SOT.
duplex link (Receive leg only),
Byte Expansions
Bit Pattern!
Offset/Field Name
0(0)
LXBIMCTL
Hex Value
Contents
X'SO'
Reset Immediate issued.
Immediate control command flags:
Set Mode Commands (for idle or busy
lines):
X'Q4'
X'06'
X'10'
X'12'
X'14'
X'lS'
X'lA'
Read line type.
Set text error retry limit.
Set receive buffer cutoff factor.
Start line trace.
Stop line trace.
Set operation link.
Reset operational link.
Set Mode Commands (idle lines only):
{'
X'OS'
X'07'
Set line adapter interface parameters.
Set line control procedure.
LXB command:
LXBCMANO
X'OO'
X'B3'
X'80'
X'8F'
X'30'
X'32'
No I/O occurred
Disable.
Enable.
Dial.
Run SOLC link.
.Run Initial (remote NCP)
~,
2(2)
LXBCMOOS
Byte 0
Command modifiers:
~,
1(1)
x ...
....
.x ..
....
1=Suppress ending a new command due
to outstanding status.
O=lmmediate end to new command
when status is outstanding.
1=No retry .
O~Retry.
128
3704 and 370S Program Referonce Handbook
(
Bit Patternl
Offset/Field Name
Hex Value
"
.J
....
.X
Contents
l=lmmediate retry if errors while normal
polling.
0==11 errors, retry at next normal poll
cycle .
....
•• • X
1=00 not release transmitted buffers.
O=Release transmitted buffers after ACK.
Byte 1
x ...
....
1=Perform command reset step first.
....
Extended error status.
l=Overrun.
4(4)
it
LXBEXTST
x ...
O==Normal command execution.
O=norrnal.
1=Block overrun occurred.
....
....
O=No block overrun occurred .
. . l.
... 1
Abort received .
Monitor count overflow. (If more than 64
temporary station errors occur.)
Status equates:
Extended error status.
6(6)
LXBSTAT
.,J
1 ...
. 1 ..
.. 1.
•.. 1
Format exception (invalid SOLe format) .
Sync check .
Block data check error .
SDLC polilfinal bit.
Run command error exception phase field:
•...
....
. .••
....
••..
000.
001.
010 .
OIL
100.
•... 101.
•... 110.
Ill.
100.
101.
111.
Normal final status: control information
received in I or 5-format.
Normal final status: data received in
I-format.
Normal final status: data received in
NS-format.
Special 0 final status.
Special 1 SOLC final status.
Hardware error.
••.0000.
. ..0001 .
...0010.
... 0110.
••. 0111.
.•. 1 010.
... 1 110.
... 1 111 .
Normal final statu.(bits 0·2=000,001,011)
Time-out (something received) .
SO lC command reject .
Buffer cutoff.
Partial ACK (RR) or negative ACK .
Reiect received .
End of block (I·format).
Po.itive ACK (RR) .
Wait ACK (RNR).
000.
001.
011.
.,
Poll type is 'RR',
Poll type is 'RNA' .
Poll type i. 'NS'.
COmmano not-executed because of
outstanding status.
Error while sending text (I-format) .
Error while sending normal polling or
response (S-formatl.
Error while sending NS control sequence.
Completion code first status byte:
7(7)
LXBSTATC
No errors..
Data Area Layouts
129
LXB
Offset/Field Name
Bit Pattern!
HaxValue
100.
· ..0
... 0
.. .0
.. .0
· .•0
000.
001.
010.
110.
111.
Timeout (nothing received).
Command reject.
Buffer pool depleted.
Reset.
Invalid address received in BLU from
secondary.
... 1 110.
... 1 111 .
101.
· .. 0
...0
.. .0
· .. 0
.. .0
... 0
Contents
Special 0 final status {special status or
control information received in NS format}:
000.
001 .
010.
011.
100.
110.
Disabled.
Enabled.
Special 1 SOLe final status (control
information received in S or I format):
Timeout with only flags received.
Received invalid command.
Received invalid N tA) in I or S format.
.link activity time-out. (Secondary only).
Received "[USC)
-
Received RQI. (This bit configuration
also representsSIM in CCBSTAT1.)
... 1
... 1
... 1
... 1
000.
001.
Received SNRM •
OIl.
Received RD L.
100.
Record statistics .
Received 81M. (SIM is represented by
... 1 110.
...0 110. in CCBSTAT1.)
Received non·sequenced ACK SOLe
response.
... 1 111.
IReceived non-sequenced XID SOLe
111.
Hardware/user error final status:
.. . 0 000 .
User Error - MTA unique.
1. Code and terminal have been identified,
but user has not defined them "as.part
of the MTA line.
2. User has supplied invalid LCST parameter, such as non-existant line speed.
... 0 010.
Communication Scanner Check - not
currently in use.
response. "
Adapter Check 1. Timer has detected no level 2 interrupt
when at least one was expected.
2. Modem self-test failed to get a level 2
interrupt after placing the PCF in
turnaround.
3. Enable or dial"failed to get a level 2
interrupt after setting the PCF to set
mode .
... 0101.
(
Adapter Feedback Check 1. TImer detects an LCD of X'F', which
results from a hardware-detected error
within the adapter.
2. Improper SYSGEN about the adapter
in use.
3. Stop bit error on a BSC line.
('
130
3704 and 3705 Program Reference Handbook
OffsetlField Name
Bit Pattern/
Hex Value
Contents
... 0 110.
Equipment Check - not currently in use .
... 1 000.
Modem error - Set when the SCF modem
error bit is on.
1. Occurs when DSR drops during a transmit or receive operation.
2. Can be set by the timer.
Set if CTS drops while transmitting.
:3:
... 1 001.
... 1 010.
Transmit Clock or CTS Failure 1. During enable or write control
operation, a Level 2 interrupt failed to
follow line turnaround.
2. During enable on a full duplex line,
CTS failed to come up.
3. Time-out occurs with PCF of transmit
initial (8) .
DSR Turn On Check - DSR fails to come
up during an enable or dial operation .
... 1 100.
DSR Turn Off Check - DSR fails to drop
during a disable operation .
... 1 110.
Auto call check 1. Initial dial PCF 'F' sees ACR, OLD,
COS, or PN 0 up.
2. Dial PCF '4' sees ACR, COS, or PNO up.
11111111
Program Failure 1. Line 110 code completed in an
impossible status, /e.g. EN 0 on SIS
line)
2. A negative data length was computed.
...•
Poll/final bit.
... x
-Data Area Layouts
131
OLLTCB
ONLINE LINE TEST CONTROL BLOCK
Program: NCP#
Siza in bytes: 4S(3O)
Created by: Specification of OLT at NCP generation and the receipt of a test line or
test line and disconnect command (block is built in a leased buffer).
fi
PointertoOLLTCB: OOBOLLfield inOLLTQCB.
Function: Contains current information on the operation of an online line test.
2(2)
0(0)
OLLTRXCT
OLLTRRCT
Residual receive character count.
Residual transmit character count.
4(4)
(
6(6)
OLLTCCT
Receive character compare count.
OLLTNCCT
Receive character non-compare count.
S(S)
.
OLLTFLGS
Flag field.
-
-r
OLLTDICW
Dial SDF/PDF return if error.
OLLTDRCT
Dial residual
count if error.
15(F)
OLLTCMFG*
Special commu-
Remainder of flag field.
nications flag.
1S(12)
16(10)
OLLTICW1
ICWl contents at completion
OLLTICW2
ICW2 contents at completion
of level 2 command.
of level 2 command.
20(14)
22(16)
OLLTSYSF*
OLLT System flags.
OLLTICW3
JCW3 contents at completion
of level 2 command.
24(1S)
26(lA)
OLLTCCRA
OLLTECRA
Current command relative address.
Failing command relative address.
2S(1C)
3O(1E)
OLLTECBA
OLLTCCSA
Error command branch relative address.
Current command start address.
32(20)
34(22)
OLLTFBAD
OLLTOCBA
OllT first buffer address.
QCB control block address.
36(24)
OLLTCCBA
Current command buffer address.
40(2S)
OLLTLKBA
Pointer to lKB/LCB.
44(2C)
OLLTWRK
Work area for level 5.
* Incilcates a byte expansion follows.
132
3704 and 3705 Program Reference Handbook
(
"
"
\
OLLTCB
Byte Expansions
Offset/Field Name
Bit Pattern/
Hex Value
Contents
15(F)
OLLTCMFG
22(16)
OLLTSYSF
X'OS'
X'04'
X'02'
Byte 0
Dial command active.
Set time delay active.
Transmit on count active.
OLLT system flags:
No level 2 interrupt occurred
before time-out.
SCF mask error was detected during
level 2 interrupt.
A miscellaneous error was detected
1 ...
.1 ..
.. 1.
in level 2.
... 1,
1 ...
.1 ..
.. 1.
... 1
Halfword compare error.
Scanner interlock error.
Post unsuccessful.
Dial ACR error .
Dial ACU error .
Byte 1
1 ...
.1 ..
.. 1.
... 1
1 ...
.x ..
.. 1.
... 1
Character compare halfword (OLLTCCT)
has overflowed.
Character non-compare halfword
(OLLTNCCT) has overflowed.
Count went to zero on a receive
SOLe command.
Abort condition detected .
Abort sequence in progress.
Line/Jink test .
O=SOLC link test.
'=BSC/sS line test.
Wait state .
Reset command received .
Data Area Layouts
133
ONLINE LINE TEST LOOKAHEAD BUFFER
""ogram: NCY#
Size in bytes: Variable.
Created by: NCP upon receipt of a Test Line or Test Line with
Disconnect command.
(
Pointer to OLLTLAB: LXBLTLAB field in ACB.
Function: Temporarily holds consecutive 110 interpretive commands
for lookahead decode. The commands are:
• Transmit Character and Turn
• Transmit on Count
• Receive SOLe
• Receive and Compare
~.__R_e~__iv_e_an_d_Co
__u_n_t____________~____________~____________~~~
0(0)
2(2bffset to next
command to be
Buffer chain pointer.
1
13 (3)
Flags'
executed.
4(4)
OLLT 1/0 interpretive commands.
(3 maximum)
*Indicates a byte expansion follows.
Byte Expansion
Offset/Field Name
3(3)
(No name)
Bit Pattern!
Hex Value
Contents
Flags
Transmit on Count phase 1 complete.
Transmit TUrn phase 1 complete .
1 ...
.1 ..
..1.
... 1
Receive phase 1 complete .
Receive and compare active or no buffer
available in level 3.
C.·'
(
134
3704 and 3705 Program Reference Handbook
/
ONLINE LINE TEST QCB CONTROL BLOCK
OLLTQCB
Program: NCP#
Size in bytes: 24(18) for half-duplex lines.
48(30) for duplex lines.
Pointer to
OLLTQCB: OlLTOCBA field in OLLT control block.
Function: 'Contains
duplex operation).
aCBs for OLLT routines (two identical aCBs for
See aCB for Input Queues for all bit definitions
0(0)
2(2)
OCB1ECB
Pointer to first element queued.
(Shifted address) .
4(4)
OCBSTAT*
OCBLECB
Pointer to last element queued.
(Shifted address)
15 (5)OCBPRKEY'
Task and queue
status.
6(6)
OCBLlNK
Pointer to next aCB on the queue.
(Shifted address)
OCB 10 flag and
task protect key.
8(8)
r···· .
OCBTSKEP
Task entry point (last 18 bits).
OCBMCBO
9(9)
OCBSCHEO*
Major control
block displace-
ment.
Task dispatching
priority.
12(C)
14(E)
OCBSAVE
OCBLUNK
Address of save area push-down
list. (Shifted address)
Pointer to previous aCB on the queue.
16(10)
(Shifted address)
18(12)
OOBACB
Reserved.
Pointer to ACB.
20(14)
0080LL
Pointer to OLLT.
·Indicates a byte expansion occurs in the QCB for Input Queues.
r--------------------------~
I
I
I
I
Identical QCB for duplex operation.
I
I
IL _________________________ JI
Data Area Lavouts
136
OLTTCB
ONLINE TERMINAL TEST CONTROL BLOCK
Program: NCP
Size in bytes: 37(25)
ii.\
Located in: Dynamically allocated buffer.
~
Created: When a BTU Test command is received.
Pointer to OlTT: DVBSDRT field in OVB when in online test mode.
Function: Contains status flags and counters from diagnostic 1/0 operations.
0(0)
OLTCTRS
Counters
8(8)
OLTFLGS
Flags. (This field can also be used for counters,)
16(10)
OLTSTAT
Status field (same as IOBSTAT).
19(13)
(Reserved).
18(12)
OLTEXST
Extended status
field (same as
IOBEXTST).
20(14)
OLTPHER
Phase errorconverted.
21(15)
OLTFSTS
22(16)
OLTFNLS
Final status - converted.
First status converted.
26(1 A)
24(18)
OLTCCMAD
Current relative command address.
OLTTEMP
Temporary halfword work area.
30(lE)
2811C)
OLTFBAD
Address of first BCU buffer
OLTLCBAD
LeB address. (Shifted address)
(Shifted address)
32(20)
OLTCBAD
Current command buffer address (last 18 bits).
OLTCBOF
Offset into current
buffer.
36(24)
OLTXFER
Maximum buffers
in Read subblock.
(
(
l36
3704 and 3705 Program Reference Handbook
)
PCB
PANEL CONTROL BLOCK
i.J
Program: NCP
Size In bytes: 24(18)
Created by: NCP generation.
Pointer to PCB: SYSPDBP field in HWE.
function: Provides an area through which information is passed between modules
supporting control panel operation.
~ Notes: This control block is required to be tailored for a specific machine. It requires
..... the following information:
• Type of channel adapter installed.
• Type of communication scanner installed.
The channel adapter and communication scanner type information is used to generate
the invalid external register address ranges for input. This information is used to verify
J
external register addresses entered into the dynamic register display and address trace I:OU'
tines in order to avoid input/output instruction checks.
The invalid external register range. follow the PCB in storage.
0(0)
PCBADSW
Value of the ADDRESS/DATA switches (la.t 18 bits).
PCBCTL
Control byte:
used as interface with level 3
panel service
module.
6(6)
PCBDICTL
PCBFNSW
Value of the DISPLAY/FUNCTION
Display 1 con·
tml byte.
SE LEeT .witch.
8(8)
PCBDIAD
Display 1 address (last 18 bits) .
4(4)
.
.
.
.
. .
PCBFUNCE
1
7 (7)
PC8D2CTL
Display 2 control
byte.
,
Function extension control
byte.
12(C)
. . . . . ·1
PCBD2AO
Display 2 address (last 18 bits) .
PCBAPNSL
Display appendage select byte.
18(12)
16(10)
PCBICPAD
Panel request intercept addr.ess.
(Always shifted regardless of
storage size.)
22(16)
20(14)
PCBICWN
New
PCBICWD
Current ICW address with bit 38 on.
lew address· request for
(Reserved).
data set lead display.
Data Area Layouts
137
PCF STATE VECTOR TABLE
PCF
(Type 1 Scanner only)
'Program: PEP, EP
Size in bytes: 128(8F)
Located in: Module CYANUC (EPI. $LVL2 INCP)
Created by: NCP and EP generation.
Pointer to PCF State Vector Table: BCBVCT field in BCB
Referenced by: CYABIT10IEP). CYABIT20lEPI. CYABIT30lEPI. CXBBTSVINCP).
Function: Provides address pointers to bit service routines.
Note: Offsets are shown within each table. The actual offset will be determined by the
location of the table within the link edit map.
Start/Stop
0(0)
212)
CYANOOPXIEP)
CXBBTSV2INCP)
CY AMPCF 11 EP)
CXBBTSV3(NCP)
Address pointer to PCF O· No-op.
Address pointer to PCF 1 - Set Mode.
414)
616)
CYABPCF2IEP)
CXBBTSV4INCP)
CYAPCF3IEP)
CXBBTSV5(NCP)
Address pointer to PCF 2 - Monitor DSR.
Address pointer to PCF 3· Monitor
RI/OSR.
8(8)
lOlA)
CY APCF45IEP)
CXBBTSV6INCP)
CYAPCF45IEP)
CXBBTSV6INCP)
Address pointer to Monitor Phase.
Address pointer to Monitor Phase.
141E)
121C)
CYANOOPXIEP)
CXBBTSV2(NCP)
Undefined for start-stop.
16(10)
18112)
CYASPCF8IEP)
CXBBTSV7INCP)
CYAXSSTTIEP)
CXBBTSVBINCP)
Address pointer to PCF 8 - Transmit
Initial.
Address pointer to PCF 9 . Transmit
Normal.
20(14)
22(16)
CYASPCFAIEP)
CXBBTSVAINCP)
CYASPCFB(EP)
CXBBTSV8INCP)
Address pointer to PCF A . Transmit
Break.
Address pointer to PCF B . Prepare
to turn.
24(18)
26(lA)
CYASPCFCIEP)
CXBBTSV9(NCP)
CYASPCFDIEP)
CXBBTSVH(NCP)
Address pointer to PCF C· Transmit
Turn, RTS Off.
Address pointer to PCF 0 . Transmit
Turn, RTS on.
2811C)
138
CYASRCVT(EP)
CXBBTSVDINCP)
Address pointer to PCF 7 - Receive,
3011E)
CYANOOPXIEP)
CXBBTSV2INCP)
CYAMPCFF(EP)
CX8BTSVIINCP)
Undefined for start-stop.
Address pointer to PCF F . Disable.
3704 and 3705 Program Reference Handbook
PCF
SOLC
2(2)
0(0)
CXBBTSV2
CXBBTSV3
Address pointer to PCF 0 -
Address pointer to PCF 1 Set Mode
No-op
~
6(6)
4(4)
CXBBTSV4
CXBBTSV5
Address pointer to PCF 2 .
Address pointer to PCF 3 -
MonitorDSR
Monitor RIIDSR
10(A)
8(8)
CXBBTSVP
CXBBTSVP
Address pointer to Monitor
Address pointer to Monitor
Phase· Allow DSR error (flags)
WI
12(C)
CXBBTSVR
Address pointer to Receive
Flags - No interrupt
16(10)
..
Phase (flags)
14(E)
CXBBTSVQ
Address pointer to Receive
Data - PCF 7
18(12)
CXBBTSVS
CXBBTSVT
Address pointer to PCF 8 -
Address pointer to PCF 9 Transmit Normal
Transmit Initial
20(14)
22(16)
CXBBTSVU
CXBBTSV2
Address pointer to PCF A Transmit new sync
Undefined for SOLe
(No-op)
26(lA)
24(18)
CXBBTSVV
Address pointer to PCF 0 -
CXBBTSV9
Address pointer to PCF C -
Transmit data continuousNo interrupt
Transmit Turn, RTS off
28(lC)
30(1 E)
CXBBTSV2
Undefined for SOLe
(No-op)
CXBBTSVI
Address pointer to PCF F -
Disable
Data Area Layouts
139
PCF
Binary Synchronous
0(0)
2(2)
CYANOOPX(EP)
CXBBTSV2(NCP)
CYAMPCF HEP)
CXBBTSV3(NCP)
Address pointer to PCF 0 - No-op.
Address pointer to PCF 1 - Set Mode.
4(4)
~
r
6(6)
CYABPCF2IEP)
CXBBTSV4INCP)
Address pointer to PCF 2 - Monitor DSR.
CYABPCF3IEP)
CXBBTSV5INCP)
Address pointer to PCF 3 - Monitor
RI/DSR.
818)
lOlA)
CYAPCF45IEP)
CXBBTSV6INCP)
Address pointer to ~CF 4 - Monitor
CYAPCF45(EP)
CXBBTSV6 INCP)
~.
Address pointer to PCF 5 - Monitor
Phase, DSR Check on.
Phase, DSR Check Off.
14(E)
12(C)
CYANOOPXIEP)
CX8BTSV2(NCP)
Undefined.
CYARCDTAIEP)
CXBBTSVC(NCP)
Address pointer to PCF 7 - Receive.
18112)
16(10)
CYABPCF8IEP)
CXBBTSVEINCP)
Address pointer to PCF 8 - Transmit
Initial.
20(14)
CYAXMDTAIEP)
CXBBTSVGINCP)
Address pointer to PCF 9 - Transmit
~
Normal.
22(16)
CYANOOPXIEP)
CXBBTSV2INCP)
Undefined.
CYABPCFAIEP)
CXBBTSVFINCP)
Address pointer to PCF A - Transmit
New Sync.
261lA)
24118)
CY ASPCFCIEP)
CXBBTSV9INCP)
Address pointer to PCF C . Transmit
Turn, RTS Off.
CYASPCFDIEP)
CXBBTSVH(NCP)
Address pointer to PCF 0 - Transmit
Turn, RTS On.
3O(lE)
2811C)
CYANOOPX(EP)
CXBBTSVIINCP)
CYAMPCFf(EP)
CXBBTSVIINCP)
Undefined.
Address pointer to PCF F - Disable.
(
(
140
3704 and 3705 Program Reference Handbook
.
"
Dial
0(0)
2(2)
CYAOINOPIEP)
CXBBTSVJINCP)
CYANOOPXIEP)
CXBBTSV2INCP)
Address pointer to PCF 0 - No-op.
PCF 1 undefined for Dial.
"\
..
4(4)
6(6)
CYANOOPXIEP)
CXBBTSV2INCP)
CYANOOPXI EP)
CXBBTSV2INCP)
PCF
2 undefined for Dial.
PCF 3 undefined for Dial.
B(8)
lOlA)
CYAPCF05IEP)
CXBBTSVLINCP)
CYAPCF04IEP)
CXBBTSVKINCP)
Address pointer to PCF 4 - Monitor
Call Unit.
Address pointer to PCF
Call Unit.
5 . Monitor
14(0)
121C)
CYANOOPXIEP)
CXBBTSV2 INCP)
CYANOOPXIEP)
CXBBTSV2INCP)
PCF 6 undefined for Dial.
PCF 7 undefined for Dial.
16(10)
18(12)
CY APCF08IEP)
CXBBTSVMINCP)
CYANOOPXIEP)
CXBBTSV2INCP)
Address pointer to PCF 8 - Digit Valid_
PCF 9 undefined for Dial.
20(14)
22(16)
CYANOOPXIEP)
CXBBTSV2INCP)
CY ANOOPXIEP)
CXBBTSVINCP)
PCF A undefined for Dial.
PCF B undefined for Dial.
24(18)
2611A)
CYANOOPXIEP)
CXBBTSV2INCP)
CYANOOPXIEP)
CXBBTSV2INCP)
PCF C undefined for Dial.
PCF D undefined for Dial.
28(lC)
3011E)
CYANOOPXIEP)
CXBBTSV2INCP)
CYAOPCFFIEP)
CXBBTSVNINCP)
PCF E undefined for Dial.
Address pointer to PCF F - Disable.
Feedback Check
I
0·3110·1F)
CYANOOPXIEP)
CXBBTSV2INCP)
Feedback check PCFs are No-op.
Data Area Layouts
141
PATH INFORMATION UNIT (FIOO)
PIU
(FIOO)
Program: NCP#
Size in bytes: 34(22) plus variable length text.
Function: Basic unit of transmission in the TP network. The FIDO PIU is used for
requests directed to sse and start-stop devices.
Note: This PIU layout is as it appears in an NCP buffer. The basic PIU begins with the
transmission header.
Buffer Prefix
2(2)
0(0)
UOBUFCHN
UOOFFSET
Buffer prefix chain field.
Buffer prefix
data offset field.
(Shifted address.)
3(3)
UOOATCNT
Buffer prefix
data count field.
Event Control Block
414)
UOCSTAT
1
Block status flags.
I
515 UOESTAT
)
6(6)
UOECHN
ECB chain pointer.
Event status flags.
818)
lOlA)
UOTMINT
UOWQCB
aCB for waiting task.
Set time interval, as specified
by SETIME macro.
or UOBLKNS
Hold area for blocks N(s).
or UOTCNT
PI UO text count.
I
121C)
UlBlTYPE
_1.13(0)
UIB1STAT*
Equal to 1st byte of
destination RVT
UIB status
----------or
UIBLBBA (NCP#)
Last buffer of PIU address
Transmission Header
14(EI
THOBO'
TH Byte 0
16(10)
15(F)
Reserved.
18112)
THODAF
THOOAF
Destination network address.
Origin network address.
22(16)
20114)
THOSNF
Sequence number.
*Indlcates a byte expansion follows.
142
I
3704 and 3705 Program Reference Handbook
THOOCF
Count (RH + RU).
~""
~~)
PIU
(FIDO)
RequastlRospon.. Hooder (RH)
24(18)
RHOBO'
RH
BVteO.
25(19)
RHOB1'
RH
Byte 1.
26(lA)
RHOB2'
RH
Byte 2.
27(lB)
RHOPAO
FIOO pad between
RH and RU.
(See Section 4)
Request/Response Unit (RU)
280C)
RUOCMO
BTU command.
(Refer to Section 3)
32(20)
RUOSRP
BTU system
response.
(Refer to Section 7)
29(10)
30(lE)
RUOMOO
BTU command
modifier.
(Refer to Section 3)
33(21)
RUOLRP
BTU extended
response.
RUOFLG
BTU flags.
(Refer to BTU)
Text field.
(Variable length.)
(Refer to Section 7)
, Indicates a byte expansion follows.
Bit Pattern!
Offset/Field Name
13(0)
UIBOSTAT
Hex Value
ule status.
X'80'
X'Ol'
X'02'
X'03'
X'04'
X'05'
X'06'
Recurrent PIU/sensitive data indicator.
Invalid OAF.
Unrecoverable path error.
Unrecoverable station error.
Invalid DCF.
Incomplete header.
Format error.
Auto network shutdown in progress.
Transmission header byte O.
x'or
14(E)
THOBO
24(18)
RHOBO
Contents
. .00
.... 01 ..
.... 10 ..
F 100 BSC/SS node .
Last segment .
First segment .
. . .. 11..
Only segment •
.... 00 ..
.... ... x
Middle segment .
1=Expedited flow .
O=Nonnal flow.
x ...
1=Response.
O=Request.
OO=FM data
}
01=Network control.
10=Oata flow control.
11=Session control.
l=Formatted .
O=Unformatted.
l=Sense data included .
O=No sense data included.
Only element .
First element.
Last element.
Middle element.
Request/response byte O.
.xx.
.... x ...
.x ..
.. 11
· .10
· .01
· .00
( See
)
Section 4
Data Area Layouts
143
PIU
(FIDO)
Offset/Field Name
Bit Pattern!
Hex Value
25(19)
RHOBI
Request/response byte l.
1 ...
.. 1.
... 1
. 1 ..
... 1
26(IA)
RHOB2
Contents
1 ...
. 1 ..
.. 1.
. x ...
FME/DR1 requested/sent.
RRN/DR2 requested/sent .
Exception response requested/sent .
Reserved .
Pace .
RH byte 2.
B.egin bracket.
End bracket .
Change direction (HDX only) .
Code selection indicator
O=EBCDIC
I=ASCII
(
144
3704 and 3705 Program Reference Handbook
PATH INFORMATION UNIT (FI01)
PIU
(FI01)
Program: NCP#
Size in bytes: 36{24) plus variable length text.
Function: Basic unit of transmission in the TP network. The FI01 PIU is used for trans-
mission between the host. local NCP, and remote NCP.
Note: This PIU layout is as it appears in an NCP buffer. The basic PIU begins with the
transmission header.
Buffer Prefix
0(0)
U1BUFCHN
Buffer prefix chain field.
(Shifted address.)
Event Control Block
I
I
4(4)
15(5)
U1CSTAT
U1ESTAT"
Block status flags.
Event status flags.
S(S)
UHMINT
Set time interval, as specified
~y S~TIM_E m'!.cro.
or UHCNT
PI U 1 text count.
6(6)
U1ECHN
EeB chain pointer.
10(A)
U1WOCB
aCB for waiting task.
-- - - -
- -
or U1BLKNS
HokJ area for blocks N(s).
- -
12(C)
,/13(0)
UIBHYPE
UIB1STAT'
-"qual to 1st byte of
UIB status
destination RVT
-or ..
.. .. ..
.
..
-
..
UIBLBBA (NCP#)
Last buffer of PIU address
**Refer to ECBESTAT field of the Event Control Block.
Transmission Header
14(E)
TH1BO'
TH byte O.
16(10)
15(F)
Reserved.
lS(12)
TH1DAF
TH10AF
Origin network address.
Destination network address.
22(16)
20(14)
TH1SNF
Sequence number.
.
I
TH10CF
Count (RH + RU).
RequestlRllponse Header (RH)
24(lS)
RH1BO'
RH
Byte O.
(See Section 4)
'.
25(19)
RH181'
RH
Byte 1.
26(lA)
RH1B2'
RH
Byte 2 .
Indicates. byte expansIon follows.
Data Area Layouts
146
PIU
(F101)
Request/Response Unit (RU)
27(IB)
RU1BTO
1st byte of prefix
for session
control FM requests.
(Refer to Section 4)
-----or RU1RCO
Request code for
non session
control FM requests.
(Refer to Section 4)
28(IC)
RU1BTI
2nd byte of prefix
for session control
FM requests.
(Refer to Section 4)
32(20)
RU1WT*
!Trace type indicator.
29(10)
RU1RC2
Request code for
session control
fM requests.
(Refer to Section 4)
33(21)
RUlTM
Time field for
active trace
and record trace data.
*Indlcates a byte expansion follows.
30(IE)
RU1NA
Network address for session control
FM requests.
34(22)
RU1SCA
35(23)
RU1RTT*
Subchannel address Type of record trace
for EP line.
data request.
Byte Expansions
Bit Pattern!
Offset/Field Name
13(0)
Hex Value
UIB1STAT
X'SO'
ula status,
Recurrent PIU.
X'OI'
X'02'
X'03'
X'04'
X'05'
X'06'
X'07'
14(E)
TH1BO
. .01
....
....
....
....
Invalid DAF.
Unrecoverable path error.
Unrecoverable station error.
Invalid DCF.
Incomplete header.
Format error.
Auto network shutdown in progress.
01 ..
10 ..
11 ..
00 ..
.. x.
.... ...x
24(18)
RH1BO
x ...
.XX.
.... x ...
146
Contents
Transmission header byte O.
FIOl Intermediate node .
Last segment .
First segment .
Only segment .
M idd Ie segment.
l=Primary to secondary flow .
O=Secondary to primary flow.
l=Expedited flow .
O=Normal flo~.
Request/response byte O.
1=Response.
O=Request.
OO=FM data
}
01=Network control
10=Data flow control
11 =Session control
l=Formatted .
O=Unformatted.
3704 and 3705 Program Reference Handbook
(see
)
Section 4
(
PIU
(FID1)
Dffset/Field Name
~
.
Bit Pattern!
Hex Value
.x . .
.. 11
· .10
..01
· .00
I
25(19)
RHIBI
RH byte 2.
. 1. .
0
•••
I
I
32(20)
RUIWT
Reserved .
Pace .
Begin bracket.
End bracket .
Change direction (HDX only) .
I ...
.. 1.
..J
First element .
Last element.
Middle element.
FME/DRI requested/sent.
RRNIDR2 requested/sent .
Exception response requested/sent.
. 1 ..
... 1
26(lA)
RHIB2
1=Sense data included. *
O=No sense data .
Only element.
Request/response byte 1.
1. ..
.. 1 .
... 1
I
Contents
....
x ...
Code selection indicator.
O-EBCDIC
I-ASCII
Trace type indicator:
· .xx
Type 2 scanner· 01
Type 3 scanner - 11
Type of Record Trace Data requested:
l=Duplex.
35(23)
RUIRTT
O=Half-dup1ex .
.x . .
· .01
Ifbit I-I,
l=Transmit leg.
O=Receive leg.
This is not the last Record Trace Data
request.
· .10
.. 11
I
This is the last Record Trace Data request
because a Deactivate Trace has been
received .
This is the last Record Trace Data request
because Line Trace has been treminated
due to slowdown.
·See Section 8.
Data Area Layouts
147
PATH INFORMATION UNIT (FI02)
Pill
(FID2)
Program: NCP#
Size in bytes: 32(20) plus variable length text.,
Function: Basic unit of transmission in the TP network. The FID2 PIU is used for
transmission between the NCP and the cluster control unit.
Note: This PIU layout is as it appears in the NCP buffer. The basic PIU begins with the
transmission header.
Buffar Prefix
O(O)
(
U2BUFCHN
Buffer prefix cha in field.
(Shifted address.)
Event COntrol Block
4(4}
U2CSTAT
Block status flags.
6(6}
1 5 (5}
U2ESTAT
Event status flags.
U2ECHN
ECa chain pointer.
10(A}
B(S}
U2TMINT.
Set time interval as specified
by SETIME macro.
U2WQCS
aCB for waiting task.
or U2TCNT
or U2BLKNS
Hold area for blocks N(s)
PI U2 text mode.
12(C}
UIB2TYPE
Unused.
I
13(D}
UIB2STAT*
UIB status.
14(E)
Alignment bytes.
16(10)
Alignment bytes.
Transmission Header
18(12)
20(14)
TH2DAF
1
Oestin~tion
netWork address.
l2t(t5)
TH20AF
Origin network
TH2SNF
Sequence number field.
address.
.
25(19)
RH281'
RH
Byte!.
26{tAI
RH2B2*
RH
Byte 2.
Indicates a byte expansion follows.
148
Reserved.
22(16)
Request/R ..ponoe Kead 64K.
Return data to host on error.
Critical situation notification
option selected.
Online test option selected .
Auto network shutdown was
initiated form the panel (NCP 1,2,3,4).
Reserved (NCP #).
Field used by dump to
determine storage load.
(NCP2, NCP#)
NCP Lavel
.,;
'0692'
SYSBI9
(SYSFLG2)
X'Ox'
X'3x'
X'5x'
NCPI &2
NCP3&4
NCP#
Load module type
X'xl'
X'x2'
X'x3'
X'x5'
X'xS'
X'x7'
X'xA'
X'xB'
X'xE'
NCP
EP
PEP
NCP/LR
PEP/LR
NCP/R
EP3.0
PEP EP3.0
PEP/LR EP3.0
General communication byte.
1. ..
At least one type 2 channel
adapter is inoperable.
Panel support (NCP2, #)
I=NCP
O=EP
l=PEP line switch in system•
.x ..
•• X.
O=not available.
(,II
•• •X
(Reserved) .
.... x ...
1=CSB1 in diagnostic mode •
.x ..
1=CSB2 in diagnostic mode .
.• X.
1=CSB3 in diagnostic mode •
•• • X
1=CSB4 in diagnostic mode .
O=not.
O=not.
O=not.
O=not.
Data Area layouts
195
XDB
Offset/Field Name
Bit Patternl
Hex Value
Contents
Program level interrupted by
levell.
'06AS'
RTRB3
1. ..
. 1 ..
.. 1.
... 1
Program level 2 interrupted.
Program level 3 interrupted .
Program level 4 interrupted.
1 ...
Program level 2 interrupted.
Program level 3 interrupted .
Program level 5 interrupted .
Last level interrupted.
'06BO'
RTRB11
on entry to level 1.
.1 ..
. .1.
... 1
Program level 4 interrupted.
Program level 5 interrupted .
1 ...
Allow additional register range
.x . .
(AARR)
1=dump
O=nodump
'OSBS'
RTRB17
,f
Field engineering hook/escape
byte.
(
{
\
196
3704 and 3705 Program Reference Handbook
')
XDH
HALFWORD DIRECT ADDRESSABLE STORAGE
Program: NCP
Located in: Controller storage beginning at location X·0700'.
Size in bytes: 128(801
Created by: NCP generation.
Pointer to XDH: None. Fixed location.
Function: Contains frequently accessed system control fields.
ROS Contained Code Save Area Sub-Block (XDHROSJ
The following fields are present in a dump_
'0702'
'0700'
ROSHI
(ROSWKll
Work area for IPL phase 3 channel
command word.
'0706'
'0704'
ROSH3
(ROSSVCCRI
Program level 1 CCU checks
(external register X'70').
ROSH5
(ROSWK2)
Work area for dual RDS and 3704
RDS standalone diagnostics.
and 3704 RDS standalone diagnostics.
ROSH7
IROSWK4)
ROSH8
(ROSWK5)
Work area for standalone channel
adapter diagnostics (3704 only).
Work area for 3704 ROS while loading
over the type 1 channel adapter,
The following fields are present during program execution .
'0700'·, ....
'0702'
TMRF
ICYATMPTR)
TlMH4
(TiMCHTD)
Channel vector table save area for timer.
Attention delay interval for channel
adapter.
'0704'
~I
ROSH6
(ROSWK31
Work area for dual RDS type 1 load
'070E'
'070C'
.I
ROSH4
(ROSSVCCUI
Program level 1 CCU interrupt
requests (exte,oal register X'7E').
'070A'
'0708'
.,
ROSH2
(ROSSVADRI
Program level 1 adapter interrupt
requests (external register X'76').
'0706'
TlMHl
(TIMCHTOS)
TIMH8
(TIMCHTO)
Attention time-out field
for secondary channel adapter.
Attention time-out field for primary
channel adapter
• Not used by EP.
"Fields used only by PEP.
Data Area Layouu
197
XDH
f:
Bit S.rvice Interrupt Modul. Control Block (8 bytBs) (XDHBSP)
'0708'
'070A'
SYSH22
(BSPSAVE)
Saved BCBL2 address interlock.
SYSH23
(BSPFUNC)
Function control switch for type 1
scanner panel-initiated ICW display,
'07OC'
SYSH24
(BSPOISP)
Scanner data set leads display.
RTRH2
(RTRSW)
Program level 3 router return entry
point (CXCCRTRR).
'0710'"
'0712'"
OCBHI
(OCBF)'
(OCBFlAGS)
EPflags
- - - - - .-
- - - -- -- -
or
CHCBA01'"
lCYECHCPlI
CA4 CHCB pointer
'0714'"
OCBT
(OCBTlO)
OCB table.
.--~---------------or
CHCBA02'"
(CYECHCP2)
CA4 CHeB pointer
'0716'*'
POSOF
(POSOFRST)
Address pointer to first eeB in the
data service out queue.
.................
- priodty
or
POSOl
(POSOlAST)
Address pointer to the last eeB in the
priority data service out queue,
- - --
'071S'"
.. or- - - -
'071A'"
OSOF
(OSOFRST)
Address pointer to the first eCB "in
the data service out queue.
OSOL
(OSOlAST)
Address pointer to the last eCB on the
data service out queue.
TMRF***
PSCA***
(CYEPSCA)
Pointer to CHCB
initiatized for panel use
-
-or - - - - - - - -
(CYATMPTR)
Pointer to next CHVT to be
checked by timer routine
'071C'"
DSIF
(OSIFRST)
Address pointer to the first CCB in ,
the data service in queue.
-
198
-
Reserved
(NCP#)
Reserved
(NCP#)
-
(
'070E'
- - or- - - - -
-
'011E'u
OSll
(OSllAST)
Address pointer to the last CeB in the
data service in Queue.
- - - - - - - - - - -- - - - --.
or
lOGAOO'"
(lOGADOR)
Pointer to error log "
3704 and 3705 Program Reference Handbook
or
ABARSAVe·**
(SAVEABAR)
Contents of ABAR
at level 1
XDH
'0720'
'0722'"
SOF
(SOFRST)
Address pointer to the first eGB in
the status out queue.
- -
-
Or
- - -
SOL
(SO LAST)
Address pointer to the last eGB in the
status out queue.
- - - -
-
--- --
or
LlCAREO'"
(SAVEADRO)
Contents of Input
X'76' at level 1
L1INTREO'"
(SAVEll NT)
Contents of Input
X'79' at level 1
(Interrupted level)
(Adapter request)
'0724'"
'0726'"
SNOF
(SNOFRST)
SNOL
(SNOLAST)
Address pointer to the first eGB in
the sense out queue.
Address pointer to the last eGB in the
sense out Queue.
- - - - or - - -
- - -
or
HNGPGMSW
(CYEHUNG)
LOGINDIC'"
(LOGIND)
Log·trace indicator:
Unhang subchannel
X'01 '=Log entry to be stored at
swit-ch: X'01 '=Action is in progress
to unhang subchannels.
byte displacements 6 and 7 of
the trace entry.
'072A'"
'0728'"
SSF
(SSFRST)
Address pointer to the first
eGa
SSL
(SSLAST)
in
the stacked status queue.
or
.
-
Reserved
(NCP#)
Address pointer to the last eGB in the
stacked status queue.
or
Reserved
(NCP#)
Indicates a byte expansion follows.
**Fields used only by PEP.
***Fields used only by EP (new basel.
Data Area laybuts
199
XDH
Type 1 Scanner acB for Character Transfer Between Character and Bit
Service (XDHCSPO)
'072C'
'072E'
CSPOHl
(CSPOOFF)
First 8CB address. BCBs are taken
off the chain from this end.
CSPOH2
(CSP02)
(CSPOON)
Last BCB address. BCSs are added to
the chain at this end.
'0730'"
'0732'
SVCO
SVCOUT
(Reserved)
or Reserved
(NCP# and EP new base)
'0734'
(Reserved)
**Fleld used only by PEP
OCB for CCBs Passed to Program LeYel 3 from Program Lev.1 2 (XDHCCPO)
'0736'
CCPOHT
(CCPOOFF)
Address of first CCB. CCS's are taken
off the chain from this end.
'0738'
CCPOH2
(CCPOON)
Address of last eCB. eeB's are
added to the chain at this end.
TImer Sub-conUUI Block (XDHTIM)
'073A'
TlMH6
Tenths of a second
counter.
'073C'
'073E'
TlMH2
(TIMWKTAB)
Address of current line timer
TIMH3
(TIMWKTNX)
Pointer to the next low-resolution
'0740'
eTa
subchain to be serviced.
control/work table.
(
'0742'
TIMPADH
(Reserved)
TIMH9
(TIMCTBAD)
Pointer to start of CXTCTB
Supervisor Sub-control Block (XDHSYS)
'0744'
SYSH3
(SYSIOON)
Pointer to end of system immediate
queue.
'0746'
SYSH9
(SYSPOON)
Pointer to the end of the system
productive queue.
200
'0746'
SYSH4
(SYSIOOFF)
Pointer to the beginning of the system
immediate queue.
'074A'
SYSH10
(SYSPOOFF)
Pointer to the beginning of the system
productive queue.
3704 and 3705 Program Reference Handbook
(
XDH
'074C'
'074E'
SYSH18
(SYSAOON)
Pointer to the end of the system
SYSH19
(SYSAOOFF)
Pointer to the beginning of the system
appendage queue.
appendage queue.
'0750·
·U7b2
SYSH20
(SYSNOON)
First triggered non-productive OCB.
SYSH21
(SYSNOOFF)
Last triggered non-productive aCB.
'0756'
'0754'
SYSH2
(SYSBPTBC) •
SYSHI
(SYS8PC8C)
Current free buffer
count.
'0758'
Free buffer threshold count + 1.
'075A'
SYSH5
(SYSLINES)
Number of communication lines.
SYSH8
(DCTAOCB)
(SYSAOCB)
System active queue control block.
'075E'
'075C'
SYSHll
(DCTSPOOL)
(SYSSPOOL)
SYSH12
(DCTSAVEK)
(SYSSAVEK)
Pointer to first buffer in system
System save area buffer pool
allocation count.
save area pool.
'0762'
'0760'
SYSH13
(DCTABND)
(SYSABND)
SYSH14
(SYSBINTM)
System binary time of day in seconds.
System abend code.
'0766'
'0764'
'0768'
SYSH15
Second halfword of system
SYSH16
(SYSCUREO)
binary time of day field
Time value for earliest expiring current
system timer recuest.
SYSH17
Second halfword of
SYSCUREO
'076C'
.
'076A'
(Reserved).
'076E'
(Reserved) .
(Reserved).
Indicates a byte expanSIon follows.
Channel Adapter Interrupt Handler Sa.e Area (XDHCHSV)
'0770'
'0772'
CHSVHl
(CHSVBKSZ)
Maximum byte count to host per
CHSVH2
(CHSVCHB)
Pointer to CHB or COB.
host start 1/0.
Communication Control Program Save Area
'XDHCCP~
'0774'
CCPHI
(CCPSAVE)
Save area for program level 3 CCP.
Data Area Layouts
201
XDH
Program Level 1/3 Router Sub-COntrol Block (XDHRTR)
'077S'
RTRHI
(RTRBARSV)
Save area for scanner buffer address
register.
'077S'
'077A'
(Reserved).
(Reserved).
'onE'
'077C'
RTRHS
(RTRL2GOA)
Level 2 interrupted IAR (16 bitsl
(
RTRH10
(RTRCASEL)
Save area for CA selection mask.
Byte Expansions
Bit Pattern!
Offset/Field Name
X'0710'
acBF
Hex Value
1 ...
. 1 ..
.. 1 .
... 1
....
....
X'075S'
SYSH2
(SYSBPTBC)
....
....
....
....
1 ...
.1 ..
Contents
EP flags. (PEP)
Set suppress out down.
Set stacked status service .
Set sense service.
Set TID sequence .
Do not dequeue from stacked status queue.
Set panel command .
User requested slowdown threshold
0001
50%
0002
25%
0003
12%
(
\.
202
3704 and 3705 Program Reference Handbook
~
.
Section 3: BTU Commands and Modifiers
Following is a list of the BTU commands with a brief description of each modifier and the
hex value and acronyms of each.
Contact Command (X'OS'I
No modifiers
Control Command (X'OS')
Command
Modifier
(Hex)
01
Displays current status of the line.
Replace session initiation
02
Replaces .LeB information associated with the
initiation.
Activate Invites
03
Allows the NCP to honor all currently resident
Invite commands. (NCP1, NCP2) .
Deactivate Invites
04
information for a line
...,;
Meaning
Display line status
Negates all currently resident Invite commands
to prevent terminal-initiated sessions.
(NCPt, NCP2).
Copy session initiation
information
05
Display Device .Status
06
Request device statistics
07
Display storage
08
Set time and date
09
Set channel mode
OA
Replaces the time and date that is resident in
the communications controller. (NCP1, NCP2).
Changes the mode of the channel adapters.
This command is valid only when. it is sent
over the current primary channel adapter.
OB
Gives network address of line associated with
OC
A diagnostic and debugging aid. The following
lew fields are stored into buffers each time
a level 2 interrupt occurs: (NCP1, NCP2),
Accesses information associated with the
initiation of a session.
Displays the current status of a device.
(NCP1, NCP21
Sends an MDR record to the host for every
device that has had activity since the previous
request. (NCP1, NCP2).
Displays 32 contiguous bytes of communica·
tions controller storage specified by the user.
(NCP1, NCP2J.
secondary
(NCP1, NCP21.
'II
Display line's network
address
Activate line trace
a devipe. (NCP#)
•
•
Line Control Definer (LCD)
Primary Control Field (PCF)
• Secondary Control Field (SCF)
•
Terminate line trace
W
00
Parallel Data Field (PDFI
Terminatftlhe line trace on a designated line.
(NCP1, NCP21.
Change modem
12
Allows the user to change the speed at which
the appropriate modems operate a line.
Set channel mode
primary
15
Changes the mode of the channel adapters.
This command is valid only when it is sent
over the secondary channel adapter.
Copy destination mode
18
Accesses the mode information of a device
Copy device session
information
21
Accesses the device's polling character,
addressing charact~ and if the device
is switched call-out, the dial digits.
speed
(NCP2, NCP#).
(NCP1, NCP2).
"
from the DVB. (NCP1, NCP2).
BTU Commands and Modifiers
203
Modifier
Command
Replace device session
information
(Hex)
22
Physical disconnect
Reset error lock
41
Reset device queues
42
Request control mode
lC
Meaning
Replaces the device's polling characters
and addressing characters in the OVB. If
the device is switched call-out, it replaces
the dial digits in the COE.
8rea.~s·the physcial dial connection. (NCP#).
Clears the error lock condition on a device. The
first request on the device work queue is
honored at the completion of this command.
Returns all commands for a device that were
accepted but not vet honored. The response
BTU of the returned commands indicates that
they were reset.
43
Sends RVI on. SSC lines. (NCP#).
Reset immediate
44
Ends the current operation on a device without
regard to data loss.
Reset online terminal
test*
48
SWitch ·to backup
Switch from backup to
primary
4A
Aborts the execution of the chain of online terminal tests, tests diagnostic mode, and clears
the device queues.
Requests switched line backup.
4C
Requests that the primary line be activated.
Reset Invite
40
Returns pending Invite command to host.
Reset conditional
50
Reset at end of
command
60
Tests the status of the top command for the
device. If data transfer has not started, the
reset takes place immediately. If data transfer
has started, the reset is not done.
Ensures that the device input queue and device
work queue are idle and empty so a new
sequence of operations can begin.
Switch to EP mode
82
Switches the line mode from NCP to EP. (NCP2i.
Switch to NCP mode
Change line serviceseeking pause
83
Switches the line mode from EP to NCP. (NCP2).
84
Allows the user to change the length of the
pau\e between service-seeking attempts.
Change line negative
poll response limit
85
Allows the user to change the number of
consecutive negative responses to polling that
are acceptable before termination of the Read
Change session limit
86
Allows the user to change the maximum number
of sessions permitted on a line at the same time
Change device transmission
limit
8C
Allows the user to change the number of EOTs
that the controller sends to or receives from a
de\(ice before servicing other devices on th!'t
~
(
reset
(NCP#).
(NCP1, NCP2).
(
command. (NCP1, NCP2).
(NCP1, NCP2).
f
line. (NCP1, NCP2).
Modify block handler
set association
80
Activate line
98
Activates, deactivates, andlor changes the
association of a block handler set with a device.
Activates a line for data transfer. (NCP1, NCP2).
,
~
*In NCP3the command is sent in the Request Unit of a FIOl execute test
request.
204
3704 and 3705 Progrllm Reference Handbook
\,
.,
Modifier
(Hex)
Command
Meaning
99
Causes a Deactivate Device operation for each
device on the line without changing the device
status. Currently resident commands are
honored, but no new commands are accepted.
Set destination mode
9A
Replaces the device mode flags for a particular
Deactivate line halt
C2
device.
Ends the current operation on the line without
regard to data loss. All outstanding requests
are returned to the host. (NCP1, NCP2).
Deactivate orderlv
(Line flush)
(NCP1, NCP2).
~
Disconnect Command (X 07')
6
..,
,
Modifier
(Hex)
Command
Meaning
Disconnect normal
0
00
No modifier.
Disconnect with
Invite
Di
01
Executed as a Disconnect normal command
Disconnect with end-
De
02
followed by an Invite normal command.
Disconnect with EOC
and Invite
For switched lines. this modifier results in the
physical connection between the terminal and
the communications controller being broken.
For all other lines, this modifier is the same as
normal.
of-call
Dei
03
Executed as a Disconnect with end-of-call
followed by an Invite command.
Invite Command (X'05')
Modifier
(Hex)
Command
Invite normal
Meaning
00
Unit of data for this command is that specified
by the TERMINAL macro at NCP generation.
Invite block
Ib
01
Unit of data for this command is the block
Invite message
1m
02
Unit of data for this command is the message
Invite transmission
It
03
Unit of data for this command is the transmission (ends with EOT).
Invite transmission
with Disconnect
Id
04
Executed as an Invite transmission command
followed by a Disconnect command.
Invite with auto
restart
la
05
Executed as unbounded series of Invite with
Disconnect commands. This command must be
terminated with a reset req4est.
Invite perpetual (valid
only for clusters)
Ip
06
Executed as an unbounded series of Invite transmission commands with no intervening Disconnect commands.
(ends with EOB).
~
'wi
(ends with ETX (BSC) or EOT (55),
Read Command (X'01')
Modifier
Command
c;,jJ
(Hex)
Meaning
Read normal
R
00
Unit of data for this command is that specified
by the TERMINAL macro at NCP generation.
Read block
Rb
01
Unit of data for this command is the block
Read message
Rm
02
Unit of data for this command is the message
(ends with EOB).
(ends with ETX (BSC) or EDT (55)).
BUT Commands and Modifiers
205
Modifier
(Hex)
Command
Meaning
Read transmission
Rt
03
Unit of data for this command is the transmission (ends with EOT).
Read transmission
Rd
04
Executed as a Read transmission command
followed by a disconnect command.
Ri
05
Disconnect
Read with Invite
Executed as a Read transmission with
Disconnect followed by an Invite normal
command.
~'i
(
Restart Command (X'04')
Modifier
(Hex)
Command
Meaning
Line
00
The BTU contains a checkpoint record for a line.
Device
01
The BTU contains a checkpoint record for a
device.
Replace session initiation
02
The STU contains session initiation information
~.
for a line.
information for a line
Replace session initiation
22
information for a device
The BTU contains session initiation information
for a device.
Test Command (X'W)"
Modifier
(Hex)
Command
Meaning
Test device normal
Test device with
Contact
Test device with
Disconnect
T
Te
Td
02
Ends a session with the device to be tested.
Test device with
Contact and
Disconnect
Test line normal
Test line with
Contact
Test line with
Disconnect
Test line with Contact
and Disconnect
Ted
03
Establishes and ends a session with the device
to be tested.
TI
Tie
04
05
Tests a line.
Establishes a session with the Iine to be tested.
Tid
06
Ends a session with the line to be tested.
Tied
07
Establishes and ends a session with the line to
be tested.
00
01
Tests a device.
Establishes a session with the device to be tested.
Write Command (X'Or)
Command
Write normal
Write with end-ofmessage
Write with end-oftransmission
Write with Disconnect
Write with Read
(implied EOT)
Modifier
(Hex)
W
00
Wm
01
Wt
02
Wd
03
Wr
06
Meaning
Unit of data is one block.
Unit of data is one block followed by the
appropriate control sequence or character for
an end of message.
Unit of data is one block followed by the
control sequence for end of transmission.
Executed as a Write transmission command
followed by a Disconnect command.
Executed as a Write command followed by a
Read command.
-In NCP#these cornmandsare sent in the Request Unit of a FIOl execute test request.
206
3704 and 3705 Program Reference Handbook
('
...
~
(
-'
."
Modifier
(Hex 1
Command
Wi
07
Write with Contact-·
We
08
Executed as a Contact command followed by a
Write normal command .
Write with Contact··
Wem
09
(implied EXTI
Write with Contact··
(implied EOTI
Executed as a Contact command followed by a
Write with end-ot-message.
Wet
OA
Write with Contact**
Wed
08
Wer
OE
(implied ETX & EOTJ
W
Write with Contact**
and Read
Executed as a Contact command followed by a
Write with end-ot-transmission.
and Disconnect
\
Muning
Executed as a Write command with end-oftransmission followed by a Disconnect
command and then an Invite command.
Write with Invite
Executed as a Contact command followed by a
Write with end-of·transmission followed by a
Disconnect command.
Executed as a Contact command followed by a
Write with end-ot-transmission followed by a
Read normal command.
**Contact may not begin a telephone connection to a sse call-in device.
Unsolicited Response (X'77'1 (See Seetion 71
BTU Commands and Mod ifiers
207
Section 3.1: NCP Channel Commands
Command
Command
.;
.
Description
Code
No·Op
X'03'
This command is required as the last CCW in a
Read or Write CCW chain.
Read
X'02'
The Read command is initiated at the NCP.
Data at controller storage is transferred, to CPU
main storage.
R.ad Start 0
X'32'
This is the first command expected in the Read
Channel program ,atter IPL of the NCP. It is
also expected after each successful Read Start 1
command.
Read Start 1
X'52'
This is the second command expected in the
Read Channel program after IPL of the NCP.
It is also expected after each successful Read
Start 0 command.
..,.,
Reset Restart
X'93'
This command causes the NCP to reset its
switches to indicate that the last Write Start
and Read Start commands were Write Start 1
and Read Start 1.
Write
X'Ol'
The Write command is initiated to the NCP.
Data in the CPU main storage is transferred to
the NCP.
Write Break
X'09'
The Write Break command is identical to the
Write command except that it is used to indicate that it is the last or only Write command
in a chain of Write CCWs.
Write Start 0
X'31'
\
This is the first command expected in the Write
program after IPL of the NCP. It is
also expected after each successful Write Start 1
command.
.~hannel
Write Start 1
t,;I
X'51'
This is the second command expected in the
Write Channel program after IPL of the NCP. I
It is also expected after each successful Write
Start 0 command.
Note: Data transfer does not occur on Read S~art and Write Start commands.
NCP Channel Commands
209
Section 4: NCP# Network Commands (Request Codes)
Byte 0, bits 1 and 2 of the request response header of the PIU indicates the type of net-
'-iJ
work command in process.
If byte 0, bits 1 and 2 are 11, see "Session Control" below for the network commands
located in byte 0 of the request/response unit.
If byte 0, bits 1 and 2 are 10, see "Data Flow Contro'" below for the network commands
located in byte 0 of the request/response.
If byte 0, bits 1 and 2 are 01, see UNetwork Control" below for the network commands
_located in byte 0 of the request/response unit.
If byte 0, bits 1 and 2 are 00, see "Function Management Data" below where byte 1 of
the request/response unit contains the subcategories for (1) BSC/sS Services (2) Physical
Configuration Services, and (3) Physical Maintenance Services. Byte 2 of the request/response unit contains the network commands associated with the subcategories listed.
Session Control
Request
Cod.
X'OO'
Command
Activate Logical
X'OE'
Deactivate Logical
Function
EStablishes a session between the SSCP and a
logical unit.
Terminates the session between the SSCP and the
logical unit.
X'II'
Activate Physical
X'12'
Deactivate Physical
X'31'
Bind
X'32'
Unbind
X'AO'
Start Data Traffic
Enables data flow in a session. It is the final
request in a data flow initialization or recovery
procedure_
X'Al'
Clear
X'A2'
Set and Test
Sequence Numbers
Request Aecove~y
Removes and discards all PIUs with the same
OAF/OAF pair from the destination process
queue.
Resynchronizes the specified sequence number.
X'A3'
Establishes a session between the SSCP and the
NCP or PU physical services.
Terminates the session between the SSCP and
the NCP or PU physical services.
Establishes a session between a host application
program and a logical unit.
Terminates the session between the host application program and a logical unit.
Initiates data traffic recovery procedures.
NCP# Network Commands
211
Data Flow Control
TH
RU
RH
1 By
teO 1
Request
Code
rYreO'1
Bits I, 2'
B'10'
L·~unction Management:
Contr~11
J
,I'
Request
Code
Command
Function·
X'04'
Logical Unit Status
X'05'
Ready to Receive
Sends status information from a logical unit to its
session partner.
Used in bracket protocol to indicate that the
bidder is now allowed to initiate a bracket.
X'SO'
Ouiesce at End of
Chain
Directs a function manager to enter the quiesce
state at the end of the chain it is currently sending.
Indicates that the issuer of the request has placed
itself in the quiesce state.
Releases a function manager from thE!"
quie.sce state.
Terminates a partially sent chain of FM data
requests.
Requests the receiving function manager to return
all outstanding data responses and data flow
control responses.
X'Sl'
Quiesce Complete
X'S2'
Release Quiesce
X'83'
Cancel
X'84'
Chase
X'CO'
Shutdown
Requests the secondary function manager to enter
the highest level of quiesce.
X'Cl'
Shutdown
Indicates that the sender has shutdown.
.....
Complm
X'C2'
Request Shutdown
x'es'
Bid
X'CU'
Signal
Informs the primary function manager that the
secondary function manager is at 'end of job'
and to issue a Shutdown request.
Used in bracket protocol to request permission
to begin a bracket.
Sends an expedited signal through the network
against the normal flow of data.
,
c.
(
212
3704 and 3705 Program Reference Handbook
Network Control
TH
RH
I
BYteo!1
Bits
1,2
B'OI'
L
Request
Code
X'O],
X'50'
X'51'
X'52'
Command
Auto Network
Shutdown Complete
Initialization
Complete
Switch Line to
NCP Mode
(BSCISSI
Switch Line to
EP Mode (BSCISSI
I
ByteO
Request
Code
System Control
Data
I
RU
I
Function
Informs the SSCP that the NCP auto network
shutdown is complete.
Informs the SSCP that the NCP initializat.ion
is complete.
Switches line from EP mode to NCP mode,
Switches line from NCP mode to EP mode,
Function Management Data
00
02
03
06
BSCISS SMvices
Physical Configuration Services
Physical Maintenance Services
Session Services
X'OO' BSC/SS Services
Requast
Code
X'OI'
Command
Function
Change Device
Transmission Limit
Allows user to change the number of EOTs that
the NCP sends to or receives from a device on a
BSC/SS multipoint line before servicing other
devices on the line.
Allows user to change the number of consecutive
negative responses to polling that are acceptable
before termination of the Read command.
Allows user to change the number of BSCISS
s&$Sions that can be active on this BSC/SS line.
Allows user to change the length of the pause
between service seeking attempts.
X'OT
Change Line
Negative Poll
Response Limit
X'03'
Change Line
Session Limit
Change Line
Service Seeking
X'Q4'
Pause
NCP# Network Command.
213
x'or Physical Configuration Services
Request
Code
Command
Function
X'Ol'
Contact
X'02'
X'03'
Discontact
Load Initial
X'04'
Load Data
X'05'
Load Final
X'06'
Dump Initial
X'07'
Dump Data
Starts a contact poll operation to an SOLe statiori
or remote communications controller.
Causes the NCP to stop polling a resource.
Initiates the IPL of a remote communications
controller.
Transfers the text of a load module to a remote
communications controller.
Informs the remote communications controller
that the load process is complete and requests it
to-provide the NCP entry point to be given control.
Initiates a remote communications controller
storage dump.
Causes the remote NCP to send a portion of Its
storage to the SSCP.
Informs the remote communications controller
that the dump procedure is complete.
Invokes a power-off sequence in a remote
communications controller.
Activates the data set associated with the SDLC
link and initiates the continuous transmission
of flag characters.
Deactivates the data set associated with the link.
Causes the NCP to initiate an outbound call on a
switched SDLC link. For auto dial, the NCP
performs the dial operation with the dial digits
provided in the command. For manual dial. the
NCP enables the link and the operator performs
the dial operation.
Causes the physical unit to terminate a switched
connection.
X'OS'
Dump Final
X'09'
Remote Power Off
X'OA'
Activate Link
X'OS'
Deactivate Link
Dial
X'OE'
X'OF'
X'll'
Abandon
Connection
Set Control Vectorchannel attention
delay
(
RU, byte 5 ~ X'05'
Allows the SSCP to change the channel attention
delay value in the COB (type 1/4 CA) or CHB
(type2CAI,
(
Note: The SSCP is not allowed to change attention delay in a remote NCP.
Set Control'
Vector-LU
Set Control
Vector-PU
Set Control
Vector-NCP
Subarea
Set State Vectortime and date
I
214
RU, byte 5 ~ X'04'
Chahges dynamic fields in the logical unit control
block (LUB) and completes initialization of the
logical unit vector table (LUV).
RU, byte 5 ~ X'03'
Changes dynamIC fields in the common physical
unit block (CUB) that are associated with the
specified physical unit.
RU, byte 5
~
X'02'
Associates a remote NCP's subar~a with a
particular SDLC link.
RU, byte 5 ~ X'Ol'
Allows the SSCP to replace the time and date in
the NCP. The time is maintained in 24 hour
continental time.
Note: The SSCP is not allowed to retrieve the
time and date with a Sense State Vector request.
3704 and 3705 Program Reference Handbook
I
j
(
X'02' Physical Configuration Services (Cont.)
Request
Code
Command
X'14'
Entering Slowdown
X'15'
Exiting Slowdown
X'16'
Answer
Causes the NCP to put the specified link in
answer mode. This enables the link to answer
incoming calls.
X'l7'
Abandon
Answer Mode
Causes the NCP to discontinue answer mode
on the specified link.
X'18'
Abandon Dial
X'19'
Assign Network
Addresses
Free Network
Addresses
causes the NCP to halt the dialing operation
over the specified link.
Assigns a set of network addresses to a speci·
fied phvsical unit. (SOle switched link only)
X'lA'
Function
Informs the SSCP that the normal flow of data in
the NCP is impeded due to limited available buffers.
Informs the SSCP that the limitation on NCP
buffers is lifted. Normal data flow to the NCP
may resume.
Causes the NCP to free the network addresses
that were assigned to a physical unit.
X'SO'
Contacted
Informs the SSCP of conditions presently
existing in the resource.
X'81'
X'84'
Inoperative
Reports a loss of contact to the SSCP.
Informs the SSCP that a physical connection
has been established between the NCP and a
physical unit. (Contains the station 10)
Off Hook
X'03' Physical Maintenance Services
Request
X'Ol'
Command
Execute Test
X'02':
Activate Line Trace
Code
Function
Causes the NCP to execute an online terminal test
(OLTTl or online link test (OllT) for the resource
specified by the network address.
Causes.the following lew fields to be stored into
_buftfer9'each time a level 2 interrupt occurs:
.>
LUne Control Definer (lCD)
., Rrimary Control Field (PCF)
• Secondary Control Field (SCFI
• Parallel Data Field (PDF)
This is a diagnostic and debugging aid.
(iiJ
X'03'
Deactivate line
Trace
Terminates line trace.
X'81'
X'82'
Record Maintenance
Statistics
Record Test Data
Sent to SSCP:whenever certain error conditions
exist.
Informs the SSCP of the current status of an
online terminal test (OlTT) or online line
test (OLLT).
X'83'
Record Trace Data
Sends line trace information to the SSCP.
;wJ
NCP# Network Commands
215
X'06' Session Services
Request
Code
X'04'
Command
NS Procedure Error
Function
Informs the issuer of a non-sequenced request
that an error occurred after the request was
accepted but before the procedure completed.
X'81'
Initiate Self
X'83'
Terminate Self
Allows a logical unit to request a session with
the SSCP.
Allows a logical unit to request the termination of a session with the SSCP.
216
3704 and 3705 Program Reference Handbook
The following command sequence is followed for bring-up and session initiation for
switched SOle. The non-switched SOlC sequence is provided by skipping those entries
identified as being required for switched. The following command sequence is found
on a PIU trace (VTAM 10 trace).
Command
Description
Activate Physical
From SSCP to NCP physical services
Initialization Complete
From NCP physical services to SSCP
Start Data Traffic
From SSCP to NCP physical services
Set State Vector
From SSCP to NCP physical services
Set Control Vector
From SSCP to NCP physical services
Activate Link
From SSCP to NCP physical services
Answer or 0 ial (Switched)
SSCP to physical services CPM-OUT
Off·Hook (Switched)
Physical services to SSCP
Set Control Vector PU (Switched)
SSCP to physical services
Contact
From SSCP to NCP physical services
Contacted
NCP physical services to SSCP
Activate Physical
SSCP to CPU physical unit process queue
Assign Network Addresses (Switched)
SSCP to physical services
Set Control Vector lU (Switched)
SSCP to physical services
Activate logical
SSCP to LU/SSCP process queue
Initiate Self (Logical Unit initiated
logon only)
From LU to SSCP
Bind Command
Host application to LU
Start Data Traffic
From host application to LU
.
Inoperative *
May be reqUired at any pomt
command.
From NCP physical services to SSCP
In
the command sequences after the Activate Lmk
NCP# Network Commands
217
Section 5: SOLC Commands and Responsas (NCP#1
Non-sequenced Format:
Control
Field
0001 0111
Commands
Set Initialization Mode
Function
Initiates system-specified procedures at the
receiving secondary station for the purpose
of initializing link-level functions.
Command (SIMI.
0101 001l"
Disconnect Command
(DISCI.
Terminates other modes and places the
receiving secondary station effectively
offline.
Set Normal Response
1001 0011
Mode Command
Subordinates the receiving secondary
station to the transmitting primary station.
(SNRMI.
10111111
Used by the NCP to solicit the station
identification from a secondary station.
1111 0011
SOLe Test command.
0001 0111
Notifies the primary station that the
secondary station has a need for a SIM
command.
Request Online Response
(ROll
0001 1111
Indicates that the transmitting secondary
station is disconnected.
Nonsequenced
Acknowledgment
Response (NSA).
0111 0011
Affirms a response to a SNRM or SIM
command.
Command Reject
Response (CMDRI.
1001 0111
Rejects a non-valid command.
Commands
Control
Field
Function
Receive Ready (RR)
xxxx 0001
Indicates the originating station is ready
to receive.
Receive Not Ready
(RNR)
xxxx 0101
Indicates a temporary busy condition in
which no frames requiring buffer space
can be accepted.
Reiect (REJI
xxxx 1001
Requests transmission or retransmission of
sequenced information.
xxxx 1101
Reserved
Exchange Identification
(XIDI
Test
Responses
Request Initialization
Response (ROI).
Supervisory Format·
LL
xxxx
poll final bit.
Receive sequence count.
I Format:
TtL~_Polilfinal bit.
Receive sequence count.
SOLC Commands and Response. (NCP#)
219
Section 6: EP Command Codes
Operation Code
-
Ep·*
"
.;
0000
0000
0001
0001
0001
0001
0001
0001
0001
0001
0001
0010
0010
0011
0100
0100
0101
0101
0110
0110
0111
0111
1000
1000
1001
1001
Command
8/360 and
8/370
00
01
02
03
12
06
13
0 ...
1 ...
0 ...
1. ..
1. ..
1 ...
1 ...
1. ..
1. ..
1 ...
1 ...
0 ...
1 ...
0 ...
0 ...
1 ...
0 ...
1 ...
0 ...
1. ..
0 ...
1. ..
0 ...
1 ...
0 ...
1. ..
Test I/O
Write
Read
I/O No·op
Diagnostic Read*
Diagnostic Write*
Set Address Zero *
Set Address One"
Set Address Two *
17
18
Set Address Three·
Diagnostic PolI*
1F
lD
Sense
Wrap
04
15
06
41
09
Prepare
Write Break
Poll
OA
Inhibit
19
42
00
OE
2F
27
29
lE
23
Poll SOH
Read Clear
Break
Search
Disable
Enable
Dial
Address Prepare
Set Mode
Flags used during initial command execution (ICE)
.... .1 ..
.... .. 1 .
....
....
....
....
... 1
End with intervention required instead of
I
: 1. :~ags Tafter ICE
command reject.
I
I
Sense command
Line must be enabled before this is accepted .
Command end
Pseudo read
... 1
Pseudo read end
*Treated by the emulation program as a no-op.
**The EP command is located in the CCBCMD field of the EP eCB.
EP Command Codes
221
Section 7: BTU Responses
This appendix lists the responses that are returned to the host in the BTU. The response
comprises two bytes: system response (BCUSRESI and extended response (BCULRES).
The extended response is also referred to as the line response.
Jstem .Response Byte
T
00000000
- r -_
L_
. ___
System response code
' - - - - - - - - - P h a s e to which the response applies
Phase 0 - Validation of BTU. There is no normal response
returned to the host if the command is valid. However,
unsolicited responses are sometimes sent to the host in
phase a that are not related to the command.
Phase 1 - lID to a communications line.
Phase 2 - Additional 110 to a communications line when
multiple 110 operations take place. For example, Write
with Read. Write with Disconnect, etc.
Phase 3 - Usually the final normal response to a command. However, if the command has an Invite modifier
(for example, Write with Invite), a phase 3 normal
response may be returned for the write portion of the
command and a phase 0 error response returned later for
the Invite portion of the command.
' - - - - - - - - - - 1 = e r r o r response
O=normal response
BTU Response,
223
Command
& Modifier
I
Ib
1m
It
Id
Phase 0*
Error
Any part
Any part
Any part
Any part
Any part
Any part
IIp
0
De
Oi
Any part
Any part
Any part
Any part
Dei
Any part
W
Wm
Wt
Wd
Wi
Wr
We
Wcm
Wet
Wed
Wer
R
Rb
Rm
Rt
Rd
Ri
Any part
C
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Any part
Ph ... ,
Error
Normal
I
I
I
I
I
I
I
0
0
011
Oil
W
W
W
W
W/I
W
I
I
I
I
I
Normal
Phase 3**
Normal
I(fina\)
Ib
1m
It
Id
0
0
l-
lor R
Itor Rt
I
I
0
De
O/l(lin_l)
OIHfinal)
I
C/W
C/W
C/W
C/W
C/W
R
R
R
R
R
R/I
Phase 2
Error
Wt
0
0
Wt/R
Wt/R
Wt
0
wt/R
Wc/R
R
R
R
R
R/I
0
0
C
(
W
Wm
Wt
Wd
Wd/l(lina\)
R (Iinal)
We
Wem
Wet
Wed
R(fina\)
R(fina\)
R(fina\)
Rm
Rt
Rd
'Rd/l(fina\)
C
·Phase 0 error responses can be returned for any portion of a BTU on which there is a
validity error.
"There are no phase 3 error responses for TP commands.
(
224
3704 and 3705 Program Reference Handbcok
Phase 0 Error Responses
Response (hex)
81
82
83
84
85
86
87
88
89
8A
88
8C
80
8E
8F
91
92
93
94
95
96
97
98
99
9A
98
9C
90
9E
Meaning
Invalid resource 10.
Invalid command.
Invalid modifier.
Reset or Deactivate in progress.
Device inactive.
Line inactive.
Command not valid for resource.
Command syntax error.
Command rejected, did not conform to Bse specifications.
Invalid control data length.
Reset not performed.
Data not resident in storage.
Dial set queue limit reached.
Une and device incompatibility on switched call-out.
Invalid text length.
Invalid control data.
Incomplete BTU.
Deactivate Line Orderly or Deactivate Device command
rejected because of error on one or more of the devices.
Data in use.
Invalid Control command modifier or Control command
not valid for resource.
OLTT command rejected, queue not empty.
OLT active. Non-OLT command rejected.
Multiple Dial requests.
Mode inconsistency (Request was made to alter the mode of a
resource, but the resource was already in that mode.)
Buffers required to complete the operation are not available;
system in slowdown mode.
Command rejected. system in auto network shutdown.
Command rejected, error lock set.
Command rejected, secondary channel adapter not
operative.
Command rejected, line deactivated or command reset.
Phase 0 Unsolicited Responses
Response (hex)
00
01
03
04
(.,j
05
06
07
08
09
OA
18
lC
10
IE
.Meaning
Invalid bit configuration.
Anention time-out or unrecoverable error on current
primary channel adapter.
Device association completed.
MTA device identified.
Channel adapter set to primary mode.
Channel adapter set to secondary mode.
Entering system slowdown.
Leaving system slowdown.
Initialization complete.
MDR records accompany the BTU.
Auto network shutdown initiated via channel time-out or
channel adapter failure.
Auto network shutdown initiated via panel.
Network shut down via auto network shutdown.
Serviceability aid-host /09gin9 ..
.",
BTU Responses
225
Phase 1, 2, and 3 error Responses
Response (hex)
Phase 3
Phase 1 Pha.. 2
AO
A1
A2
A3
A4
AS
A6
A7
A8
A9
AA
AB
AC
CO
C1
C2
C3
C4
C5
C6
C7
C8
EO
E1
E2
E3
E4
E5
E6
E7
E8
C9
CA
CB
E9
EA
EB
CC
B3
B8
B9
BA
D3
D8
D9
DA
EC
F3
F8
F9
FA
BE
DE
FE
Phase 1 2 and 3 Normal Responses
Response (hex)
Phase 1 Phase 2
Pha.. 3
20
40
60
21
22
41
42
61
62
23
24
25
26
27
43
44
45
46
47
63
64
'65
66
67
Meaning
Data check.
Possible intervention required.
Intervention required.
Negative poll limit reached-WAIT option.
Yielded to contention.
Device error-SSe status pending.
sse ID error.
Line trace terminated-due to error.
OL TT command or Reset OLTT Control command
processing terminated.
Session not started due to hardware error.
BSC error status message.
General poll operation aborted due to error.
Fanout backup limit exceeded
Not used
Disconnected
Break received on this block.
Contact rejected-session started.
Dial data inconsistency.
Buffers required to complete operation are not
available.
Command rejected, line deactivated or command
reset.
Meaning
Command executed OK this far. (Pertains to all
commands not represented by 22,42, or 62.)
Leading graphics received.
One of the following commands executed OK
this far:
• Read or Invite
• Write (in conversational mode).
• WR or WCR commands in the read phase.
Negative poll limit reae.hed-QUEUE option.
OLTT request message.
sse status message.
Negative poll limit reached-NOWAIT option.
Line trace output.
The following responses occur when the line is in monitor mode:
Response
Meaning
(Hex)
EC
ED
EE
EF
226
Disconnect received
IPL required
Permanent trunk error
Block from queue caused an abnormal condition.
3704 and 3705 Program Reference Handbook
Extended Response Byte
The extended response byte contains either a normal extended response or a conditional
extended response. The normal extended response appears in both BCULRES and the
second byte of IOBSTAT. It has the following format.
0000
0000
~ LI------Leading graphics flag
L - - - - - - - - - - F i n a l status of the line
T
Initial status gf the line
A conditional extended response applies to one specific system response and does not
have a fixed format. It appears only in BCULRES.
Extended Responses
Initial Status
Control mode.
Text mode.
Transparent text mode (BSe only).
Heading mode (SSe only).
Special.
Hardware/user error.
Normal Final Status when Intial Status =Control, Text,
Transparent Text, or Heading
000.
001.
010.
011 .
100.
111 .
...0000.
... 0 010.
... 0 OIL
...0100 .
...0 101 .
...0 110.
... 0 111.
... 1
... 1
... 1
... 1
000 .
001 .
010.
011 .
... 1 100 .
... 1 1Ol.
.. 1 110 .
... 1 111 .
Time-out - Some character(s) have been received, but may
not be stored (Control mode).
Cutoff - This -bit tndicates "that a controlled length field
(for example, an to field) was too long and was cut off
at the end of the correct length .
Reply to transmitted data was an ENO - transmission is
aborted.·
An EDT was received on a block that began without an
STX, SOH, or @ • ie., text received in control mode.
End of DLE control (SSC only).
Wrong ACK - ACK1 received when ACKO was expected,
or ACKO was received when ACK 1 was expected.
For start-stop, NAK returned in response to a selection,
poll, write, or NAK reply to text.
For sse, an EOT returned in response to a selection,
poll, or write.
Received sub-block.
End of text.
End of block .
Data or leading graphics received with an ENQ. or ENO by
itself.
EDT received with no errors.
Reverse interrupt.
Positive ACK returned and no errors indicated on a write
operation.
WACK received (could be an error condition).
BTU Responses
227
Final Status when Initial Status =Special
...0000.
Time-out with nothing received .
Command reject - should not occur error - set by the
...0001.
communications scanner code.
Level 2 .and level 3 buffer pools depleted - level 5 may still
· ..0010.
have buffers left. When this bit is on, data is lost.
... 0011.
Selected (BSC tributary only).
Received disconnect signal on TWX or DLE/EOT on
· ..0 100.
BSC.
· ..0
...0
...0
· .. 1
... 1
101.
110.
Ill.
000 .
001.
... 1 010.
... 1 011.
... 1
... 1
... 1
... 1
100.
101.
110.
111.
Data was received when it was not expected.
A reset occurred .
The device has been polled .
Transmitted sub-block (NCP2, NCP#).
An EDT was sent after a specified number of WACKs
were received in response to a request or operation .
Received break in text (two consecutive stop·bit errors).
The last two characters stored are invalid. They may be
incorrect length control characters or all spaces .
Polling stop - Device was polled to the polling limit and
responded negatively, or a Read Initial with a single
polling modifier was directed to a polled line .
EOT transmitted.
Received a break signal while transmitting.
Disconnected .
Connected .
Final Status when Initial Status:: Hardware/User Error
User error (MTA support), normally indicates an incorrect
NCP generation.
· ..0010.
Level 1 communication scanner check.
Communications line adapter check-Occurs whenever a level
...0 100.
2 interrupt (not dependent on an external source) is
expected and not received. For example, after starting to
transmit, a level 2 interrupt is expected. If none is returned,
the internal clock should be suspected of not working
properly.
Communications scanner adapter feedback check. (Signaled
... 0 101.
when LCP goes to 'F'.)
...0 110.
Equipment check .
... 1 000.
MOdem error - Comes on with the modem check bit in the
SCF field of the ICW. Not used for single current
telegraph .
... 1 001.
Modem transmit clock or clear-to-send error - Comes on
when in the transmit mode and the first character cannot
be transmitted. Indicates an external clock error.
... 1 010.
DSR-on check - For leased lines, comes on if data-set-ready
doesn't come up within three seconds after data-terminalready.
... 1 100.
DSR-off check - For switched lines, comes on if data-setready doesn't drop within three seconds of data-terminalready .
... 1 110.
ACU check - No response was received from an ACU when
one was expected. If this bit is on, check that the NCP
generation parameter that sets the autocall timeout contains a greater value than the timeout duration in the ACU .
... 11111
Program failure.
Leading Graphics Flag
.... ... 1
Leading graphics received .
/
I:
228
3704 and 3705 Program Reference Handbook
Conditional Extended Responses
X'82'
X'83'
X'84'
X'EO'
X'El'
Extended Response when System Response == X'9F'
Change-speed command is invalid for the line_
Specified line is unavailable.
Error lock.
Switch-line-mode command was received but line not
generated as mode-switch able.
Switch-line-mode command was received but a command is
already executing on the line or line trace is active
on the line.
BTU Responses
229
Section 8: NCP# Exception Responses
Exception responses are identified by RH byte 0, bit 5. If this bit is on, the RU is
displaced four bytes to make room for sense data. The first two bytes (bytes 0 and 1)
contain the exception response code. The second two bytes (bytes 3 and 4) contain
user-specified sense information.
Exception
Response
Code
X'OO64'
X'0065'
X'0801'
X'OS05'
X'OSOS'
X'OS09'
X'080A'
X'OBOC'
X'0812'
X'OS13'
X'0814'
X'0815'
X'OSlS'
X'OS17'
X'OSlS'
X'OSlA'
X'OSlC'
X'OS20'
X'OS21'
X'OS22'
X'lOOl'
X'l002'
X'lOO3'
X'lOOl'
X'2001'
X'2003'
X'2005'
X'400S'
X'4008'
X'SOO2'
X'80Q4'
X'SOO5'
X'9008'
X'SOOl'
X'SOOC'
X'SOOO'
Meaning
User sense data: invalid BSe device.
User sense data: inactive BSe device.
Request reject: resource not available.
Request reject: session limit exceeded.
Request reject: resource unknown.
Request reject: mode inconsistency.
Request reject: permission rejected.
Request reject: function not supported.
Request reject: insufficient resource.
Request reject: bracket bid reject.
Request reject: physical unit not active.
Request reject: function active.
Request reject: function inactive.
Request reject: link inactive.
Request reject: link procedure in progress.
Request reject: sequence error.
Request reject: function not executable.
Request reject: control vector error.
Request reject: inval id session parameters.
Request reject: link procedure failure.
Request error: RU data error.
Request error: RU length error.
Request error: function not supported.
Request error: category not supported.
State error: sequence number.
State error: bracket.
State error: data traffic not started.
RH error: exception not allowed.
RH error: pacing not supported.
Path error: link failure.
Path error: unrecognized OAF.
Path error: no session.
Path error: invalid FID.
Path error: segmentation not supported.
Path error: OCF error.
Path error: lost contact.
NCP# Exception Responses
231
f\
Section 9: 3704 and 3705 Instruction Sat
Store Character and Count
Format Code
RR
RR
RR
RI
RR
RR
RR
RI
RT
RA
RR
RT
RT
RT
RT
RR
RR
RR
RI
RR
RR
RR
RI
EXIT
RE
RS
RSA
RS
RA
RR
RR
RS
RR
RR
RR
RI
RR
RR
RR
RR
RI
RE
RS
RS
RSA
Store Halfward
RS
Subtract Character Register
Subtract Halfword Register
Subtract Register
Subtract Register Immediate
Test Register Under Mask
RR
RR
RR
RI
RI
Instruction
Add Character Register
~
Add
Add
Add
And
Halfword Register
Register
Register Immediate
Character Register
And Halfword Register
And Register
And Register Immediate
Branch
Branch and Link
Branch and Link Register
Branch on Bit
Branch on Count
Branch on C Latch
Branch on Z Latch
Compare Character Register
Compare Halfword Register
Compare Register
Compare Register Immediate
:.)
Exclusive Or Character RegKter
Exclusive Or Halfword Register
Exclusive Or Register
Exclusive Or Register Immediate
Exit
tnput
Insert Character
Insert Character and Count
Load
Load Address
Load Character Register
load Character with Offset Reg.
load Hallward
Load Halfword Register
load Hallward with Offset Reg.
Load Register
load Register Immediate
Load with Offset Register
Or Character Register
Or Halfward Register
Or Register
C
Or Register Immediate
Output
Store
Store Character
Mnemonic Operand Field Format
ACR
AHR
AR
ARI
NCR
NHR
NR
NRI
B
BAl
BAlR
BB
BCT
BCl
BZl
CCR
CHR
CR
CRI
XCR
XHR
XR
XRI
EXIT
IN
IC
ICT
l
LA
lCR
lCDR
lH
lHR
lHDR
lR
lRI
lOR
OCR
DHR
DR
DRI
OUT
ST
STC
STCT
STH
SCR
SHR
SR
SRI
TRM
R1(NlI.R2(N21
Rl,R2
Rl,R2
R(Nl.l
R1(N),R2(N21
Rl,R2
Rl,R2
R(NI,1
T
R.A
Rl,R2
R(N,MI,T
R(NI,T
T
T
R1(Nll,R2(N21
Rl,R2
Rl,R2
R(NI.1
Rl (Nll,R2(N21
Rl,R2
Rl,R2
R(NI,1
R,E
R(NI.D(B)
R(NI,B
R,D(BI
R,A
R1(Nl),R2(N21
R1(Nll,R2(N21
R,D(B)
Rl,R2
Rl,R2
Rl,R2
R(NI,1
Rl,R2
R1(NlI,R2(N21
Rl,R2
Rl,R2
R(N),1
R,E
R,D(Bl
R(NI,D(B)
R(NI,B
R,D(BI
R 1(Nll,R2(N21.
Rl,R2
Rl,R2
R(N),1
R(NI,1
3704 and 3705 1nstruction Set
233
3704 and 3705 Instruction Decode
These charts may be used to decode the four digit hexadecimal repritSentation of a 3704
and 3705 machine instruction.
Use the chart as foHows:
(1)
(2)
Locate the first digit (01) of the instruction in hex in the column of numbers
on the left side of Table I.
Locate the second digit of the instruction in the row of numbers at the top of
(3)
~~b~~ !i.e intersection of the column and row represented by the two numbers. ~ j
ji.- "
You will find either the mnemonic or a reference to Tabje II, Table III, or
Table IV.
Tables 11 .and 1V require that you kx:ate digit three (Da) only of the instruction in the
row of digits at the top of each chart. Follow the instructions for Table I to use Table III,
substituting digit three (oa) and digit four (04).
Table I
(02)
o
1 234 5 6 7 8 9 A 8 C 0 E F
1
3
Table III
A
LRI
ARI
SRI
E
CRI
XRI
ORI
NRI
F
TRM
B
C
o
Table II
BZL
BCL
B
Table IV
BB
f\
(03)
o
1 2 3 4
6 7 8 9 ABC 0 E
IC
234
3704 and 3705 Pr09ram Reference Handbook
STC
c;
&::
(,
Table III
3
4
8
103) 0) *
Ir;cr
II BAlR
lH
l
lH
lH
l
lH
~
Co
U
~
:;-
S
T
H
S
T
S
T
H
S
T
H
!r
~
'"~
lH
lH
l
lH
S
T
S
T
S
T
H
I
N
S
T
S
T
H
~
rcR-
fxR
~
'NR
S
T
S
T
H
S
T
H
H
t-coR
lHOR
Table IV
!'i
c
!l
l
~
AR
T
:1 NHR
,l
lH
I lCOR
0
IllHR
~
~
txcR
~
, *
!:I
E
IOCR
,
~I;~:
BCD
~~:
rscR
,r----
}I CHR
;1 XHR
}IOHR
•
(
A
I
,r.-;1 STCT
c
1°3)
o
4
IBAlJ:j..lAT*
I EXITI
Four Bytes
*Oenotes invalid operation.
A
C
BCT
D
Section 10. Input/Output (External) Register Functions
INPUT REGISTERS
.F.unction
Registe, (Hex)
Type 1 Scanner
40
Type 2 Scanner
Interface address.
Unused.
Interface address.
Unused.
44
Control A.
Contr.ol-B. C.
Status.
Unused,
Check register.
lew input register 0-15.
45
46
47
Unused.
Unused,
Unused.
ICW input register 16-31.
Display register.
ICW input register 3245.
41
42
43
Type 3 Scanner
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4E
Interface address
High speed select
DBAR/Check registerO
Check register
ICW byte 0 and 'PDF array
lew bytes 2 and 3·LCOIPCF/SOF
Display register
ICW bytes 4 and 5
lew bytes 6 and 7-Cycle steal control
ICW bytes 8 and 9-Cycte steal address
ICW bytes 10 and 1'·BCC
lew byte .16'Extended PCF
PDF array bits 0-10
lew bytes 12 and l3·PDF array controt
Type 2 CA
50
51
52
INCWAR
OUTCWAR
Control word byte count.
53
Sense register.
Status register.
54
55
56
57
Control register.
58
5C
Channel bus out diagnostic register.
Cycle steal address register.
Channel adapter data buffer.
Channel tag diagnostic register.
Command register.
50
5E
Unused.
59
5A
5B
Check register.
Unused.
Unu~.
Type 1/4 CA
60
61
62
63
64
65
66
67
Initial selection control.
Initial selection address and command.
Data/status control.
Address and ESC status.
Data buffer bytes 1 and 2.
Data buffer bytes 3 and 4.
NSC status byte.
Control.
InputlOutput (External) Register Functions
237
INPUT REGISTERS (cont)
Function
.Rogister (Hex)
Diskette
68
69
6A
Level 1 status.
'Level 3 status .
. Parallel data register placed on INBUS.
68
IPL information.
70
71
72
73
74
76
Storage size installed.
PaneJ A address/data bits.
Panel display function select switch controls.
I nsert storage protection key.
Lagging address register (LAR).
Adapter levell interrupt request.
77
Adapter level 2 or 3 interrupt request.
CCU
79
78
7C
70
7E
7F
(
Utility.
sse CRe register.
SOLe CRe register
CCU check register.
CCU level 1 interrl.!pt request.
CCU level 2.3, or 4 interrupt request.
(
238
3704 and 3705 Program Reference Handbook
OUTPUT REGISTERS
Function
RegistBr (Hex)
40
Type 1 Scanner
Set Mode bit override and override
Type 2 Scanner
Interface address.
remember.
41
42
43
44
45
46
47
40
41
42
43
44
45
46
47
48
49
4A
4C
Start scanner and reset L2 bit service
request.
Control A.
Address substitution control.
Control B.
Control.
General control.
Scanner control.
ICWO·15.
ICW 16·23.
Set character service pending, start
scanner, reset L2 bit request.
Force bit service l2 request.
Type 3 Scanner
ICW 24·33,44.
ICW 34-43.
Upper $Can limit control.
ABAR loader
Substitution control loader
DBARIScan limits
Control
SCF/PDF
LCD/PCF/EPCF
SDF
Miscellaneous ICW bits
Cycle steal control and byte count
Cycle steal address register
Block check character (BCC)
PDF array
40
ICW cycle steal PDF. (SDLC)
4E
4f.
Cycle stealIPDF pointers-lew control
Status bytes
50
51
INCWAR.
OUTCWAR.
53
Sense register.
Status register.
Control register.
Type 2CA
54
55
56
Reset control register bits.
57
58
SA
5B
Channel
Channel
Channel
Channel
60
62
63
64
65
66
67
Reset initial selection.
Data status control.
Address and ESC status.
Data buffer bytes 1 and 2.
Data buffer bytes 3 and 4.
NSC status byte.
Control.
adapter mode register.
bus out diagnostic register.
adapter data buffer.
tag diagnostic register.
Type 1/4CA
Input!Output (Externaf) Register Functions
239
OUTPUT REGISTERS (cont~
Function
Register (Hex)
Diskette
68
69
Control-arm.
SA
Parallel data register placed on OUTBUS.
68
IPL Information.
70
71
72
73
77
78
79
7C
70
7E
7F
Hard stop.
Display regi.ster 1.
Control-ReadlWrite~
CCU
Display r:egister. 2.
Set1cey.
Miscellaneous Control.
Force CCU checks.
Utility.
Set PCI L3.
Set PCI L4.
Set mask bits.
Reset mask bits.
(
240
3704 and 3705 Program Reference Hendbook
SlIi:tion 10.1 Modem Leads
INPUT REGISTER X'46' contains the modem leads.
Byte 0, Bit 0
BIt 1
Bit 2
Bit 3
Bit4
Bit 5
Bit 6
Bit7
Byte 1, Bit 0
Bit 1
Bit2
Bit3
8it4
Bit 5
Bit6
8it7
Data Line
Autocall
Clear to Send
Ring Indicator
Data Set Ready
Receive Line Signal
Receive Data Bit Buffer
Oiitwlostic Wrap Mode
Bit Service Request
Abandon Can and Retry
Present Next Digit
Data Line Occupied
Power Indicator
Zero (reserved)
Call Originating Status
Bit Service Request
Zero (reserved)
Zero (reserved)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
InputlOutput (External) Register Functions
241
Section 11. Interface Control Word (ICW)
"Type 2 Scanner"
OUTPUT X'44'
~
0
INPUTX'44'
0
47
"
Flags
* All bits in the PCF are reset to zero with power-on reset ..
** Also sets bit 44.
:.i
IQ'V Field D~initions
SCF
Bit
0
Stop bit check/receive break/abort (SOLe)
1
2
Service request
3
4
5
6
7
Character overrun/underrun
Modem check
Receive line signal detector
flag detection/disable zero-insert remembrance (SOLe)
Program flag
Pad flag/disable zero-insert control (SOlC)
PDF Autocall Interface
Bit
4
5
6
7
."
LCD
Hex
0
1
2
3
4
5
6
7
8
W
Digit NBR 8
Digit NBR 4
Digit NBR 2
Digit NBR 1
9
A
8
C
D
E
F
559/6
558/5
Autocall
55917
55 1017
55 10/8
55 11/8
SOLe monitor for flag
SOLC 8--bit byte-length"
Reserved
Reserved
65CEBCOIC
BSCASCII
Reserved
Feedbeck check
Interface Control Word (lCW)
243
lCW Field Definitions (Con't.)
PCF Start/Stop Line Interface
Hex
No-op
Set mode
Monitor DSR on
Monitor R I/DSR on
Unused
Unused
Receive
Transmit initial
Transmit .normaJ
Transmit break
Prepare to turn
Transmit turn, request-to-send off
Transmit turn, request-to-send on
Unused
Disable
PCF sse Line Interface
Hex
No-op
Set mode
Monitor DSR on
Monitor R I/OSR on
Monitor phase, DSR check off
Monitor phase, DSR check on
Receive in phase
Transmit initial
Transmit normal
Transmit with new sync
Unused
Transmit turn. request-to-send off
Transmit turn, request-ta-send on
Unused
Disable
PCF Autocallinterface
Hex
•
0
L:i
'--------F
No-op
Monitor call unit, ACR COS PND
Monitor .call unit, ACR COS
Digit valid
Disable
SDF Autocall -Interface
Bit
24
25
26
27
28
29
30
31
32
33
244
Interrupt remember
Power indicator (PWI)
Call request (CRO)
Data Line occupied (DLO)
Present next digit (PND)
Digit present (DPR)
Call originate status (COS)/Data set status (DSS)
Abandon call and retry (ACRI
Unused
Unused
3704 and '3705 Program Reference Handbook
~,
~
lew Field Definitions (Con't.)
PCF Synchronous Data Link Control Interface
Hex
Ir~:
x
CTSe;: ~
.
NotCTS
I
Not OSR • Not R LSD
NO·OP.
Set mode.
Monitor data set ready on.
Monitor ring indicator or data set ready on.
Monitor flag-block DSR error.
Monitor flag-allow DSR error.
Receive information-inhibit data interrupts.
Receive information-allow data interrupts.
Transmit initial.
Transmit normal.
Transmit normal with new sync.
ACB
Not used.
o
Transmit turnaround-request to send off.
Transmit end-request to send on.
Not used.
~
Disable.
x = Level 2 interrupt.
*EBCDIC or USASCII SYNC character received.
(LCO=9 only).
**Tag nonflag character.
Interface Control Word (leW)
245
ICW Field Definitions (Con't.)
SOF Set Mode Line Interface
Bit
24
25
26
Unused
Unused
Unused
27
Diagnostic wrap mode.
28
29
Set/reset data terminal ready.
30
31
32
33
Sync bit clock.
External clock.
Data rate select.
Oscillator select bit 1.
Oscillator select bit 2.
Flags
Bit
*34·36
*37
*38
39·40
Ones counter (SOLe)
Last line state (SOLC)
Display request.
Reserved.
*41
42
Priority 1.
43
Priority 2.
44
4547
NRZI flag.
Parity
Level 2 interrupt pending.
·These bits are reset to zero with power·on reset.
246
3704 and 3705 Program Reference Handbook.
Type 3 Scanner
"'See field definitions
...... Part of PDF array
ICW Field Definitions
Byte 0
SCF (Secondary Control Field)
Bit
o
Abort detect (SD Le)
1
2
Service request
3
Modem check
Not level 2 bid
End of message
Program flag
4
5
6
7
Character overrun/underrun
Byte 1
POF-Dial
Bit
4
5
6
7
Digit
Digit
Digit
Digit
lead
lead
lead
lead
8
4
2
1
Trace
Interface Control Word (lCW)
247
Byte 2
LCD (Line Control Definer)
Hex
0/8 Reserved
1/9 SDLCS
2/A Reserved
3/B
Dial
4/C
EBCDIC
5/0 USASCII
6/E Reserved
7/F Disable
PCF/EPCF (SOLe) - (Primary Control Field/Extended Primary Control Field)
Hex/Hex
r§~j:
-=2/-
Dcs:
3/-
'.rtl~
==
L_
L_
-~ 6/3
=== 6/4
r=
r-:;::
t= - __
t==_
-"-_c::::
7/3
7/4
No-op
Set mode
Monitor DSR on
Monitor RI/DSR on
Monitor flag, not DSR error
Monitor flag, DRS error
Receive flags
Receive address
Receive control
Receive 01&02
Receive abort
7/5
Receive data
End flag
7/C
Receive idle
Receive diagnostic 1
Transmit initial
'-1:
7/7
Lr:c:; ~j~
~=E~j~
CE--S ~;~
'-----=9/7
9/C
A/B/C/0/-
E/F/-
Transmit pad
Transmit clock
Transmit flag
Transmit abort
Transmit data
Transmit end flags
Transmit Bce
Transmit idle
Transmit
Transmit
Transmit
Reserved
Reserved
Transmit
Disable
diagnostic 1
initial with new sync
pad with new sync
continuous
*Conditional interrupt
248
3704 and 3705 Program Reference Handbook
PCF IEPCF (SSC)
Hex/Hex
r-~i:
...--t:::
2/x
3/' - - - - 4/0
~c=-··r~==--i§ i;~
tc~~g§
No-op
Set mode
Monitor
Monitor
Monitor
Monitor
DSR on
R I/OSR on
0, not DSR error
0, DSR error
Character phase
Reserved
Receive lead, graphic
Receive control sequence
Receive
Receive
Receive
Receive
Receive
text
end sequence
BCe
sync idle
diagnostic 1
7/C
-c:;: 8/0 Transmit initial
Transmit
pad
,-c:;:9/0
L~=~~
Transmit clock sync
Transmit sync
Transmit control
Transmit text
Transmit end sequence
Transmit
-~=~9/6 Transmit Bee
L -_ _ _ _ _ _ _ _._ ~~
pad
Insert sync idle
~.9/C Transmit diagnostic 1
A/- Transmit initial with new sync
B/- Transmit pad with new sync
C/- Reserved
0/- Reserved
X= L2
E/- Transmit continuous
L -_ _ _ _ _ _ _ _ _ _ _ F/Disable
C_ c::; 9/3
kFt==g~i:
*Conditional interrupt
PCF-Dial
Hex/Hex
ir--'-~"~O/-
X
I
No-op
.---4/-
Monitor call unit ACR/COS PND
51'---8/-
Monitor call unit ACR/COS
Digit valid
X
L---F/_
Disable
Byte 3-Byte 4
SDF Set Mode
BytelBit
3/0 NRZI control-Set ICW 5/4
3/1 Diagnostic O-Set ICW 5/5
3/2 Diagnostic l-Set ICW 5/6
3/3 Une address diagnostic wrap
3/4
Data terminal ready
3/5
Synchronous clock
3/6
3/7
External clock set-5et
Data rate select
4/0
Oscillator select 1
Oscillator select 2
4/1
lew sn
Interface Control Word (ICW)
249
SDF Dial
Byte/Bit
3/0 I nterrupt remember
3/1
3/2
3/3
Power indicator (PWI)
Call request (CRO)
Data Line occupied (DLD)
3/4
Present next digit (PND)
3/5
Digit Present (DPR)
3/6
Call originate status (COS)
3/7
Abandon call and retrv (ACR)
Byte 4 (oontinued)
Bit
2
Ones count-4
3
4
Ones oount-2
Ones count-1
5
Last line state (SDLC)
Time.-out control (SSC)
6
Display request
7
Ones count-8
Byte 5
Bit
o
1
2
Ones count-16
Level 2 interrupt pending
Priority bit 1
3
4
5
6
7
Priority bit 2
NRZI control (Set bV SDF Set Mode)
Diagnostic 0 (Sot bV SDF Set Mode)
Diagnostic 1 (Set bV SDF Set Mode)
External Clock (Set bV SDF Set Mode)
Byte 6
Bit
0-3
4
Cycle steal address byte
ETB,ETX, or ENO in data
5
6
7
Cycle steal valid
Data chain flag
Reserved
, Byte 7
Cycle steal byte count
Byte 8 Cycle steal Address byte 0
Byte 9 Cycle steal address byte 1
Byte 10 Byte Count Character (BCC) 1
Byto 11 Byte Count Character (BCC) 2
Byte 12
B~
0-3
4-7
250
Cycle steal-PDF array address
PDF-l-arrayaddress
3704 and 3705 Program Reference Handbook
Byte 13
Bit
o
Sequence 0
1
2
3
Sequence 1
RTS turn control
4
5
6
7
""
Sequence 2
Reserved
Reserved
Cycle steal message count field
Cycle steal message count field
Byte 14 (BSC)
Bit
o
Received line signal detect
1
2
Format exception
Inhibit store of data in PDF·'
3
4
Data check
Bad pad flag
5
6
ACR expected
Leading D LE error
7
Length check
Byte 14 (SOLC)
Bit
o
1
Received line signal detect
Idle detect
3
4
Data check
Flag off boundary
5
Reserved
6
Lead ing D LE error
7
Length check
Byte 15 (BSC)
Bit
0..2
3.6
Initial status field
Final status field
7
Leading graphics
Byte 15 (SO LC)
Bit
o
1
2
Control exception-received non-information frame
Reserved
Reserved
3
Program requested interrupt on line idle detect or flag
4
5
Aher transmission. if no turn:
Reserved
l=Transmit flag
O=Transmit idle
Transmit pad before line turn
Line turn after transmission
Byte 16
Bit
o
2
New sync
Data terminal ready (Set by SDF Set Mode-)
OLTT Diagnostic
4-7
Extended PCF
1
Interface Control Word (lCW)
251
{
\(.
.
..,fj
Section 12, NCP and PEP Abend and EP Hardstop Codes
When an error that causes an abend (abnormal terminationl occurs, the supervisor's abend
processor (CXAABND) posts an abend code in halfword direct addressable storage location
X'760'. Locating the abend code in the dump gives some insight into the reason for tlle
abnormal termination. The abend code appears in Display A on the panel if it is set to
Function 6.
If the condition causing the abend is detected in levell, the contents of external register
X'74' (LAR) are stored at location X'7BC' and the contents of external register X'79' are
stored at location X'6AS'. These two registers indicate the address of the failing instruction and the program level that was executing when level 1 was entered.
The first byte of the abend code- indicates which portion of the NCP detected the error.
The second byte indicates the specific error that was detected.
Errors Detected by I/O Initiation Request, SVC Decoding, or a Level 1 Interrupt
Handling Routine (Byte 0 '" X'OO')
X'OOOl'
X'OO02'
X'OOO3'
X'OOO4'
X'OOOS'
X'OOOS'
X'OOO1'
X'OOOS'
X'OO09'
X'OOOA'
X'OOOO'
X'OOOE'
X'OOOF'
X'OOlO'
X'OOl1 ,
X'OO12'
X'OO13'
X'OO14'
. . . , X'OO15'
X'OOlS'
X'OO1l'
An invalid SVC code was executed.
A protection exception occurred.
An XIO macro to a communication line specified an invalid aca address.
An XIO macro to the channel specified a BCU containing invalid chain
pointers.
An XIO macro to the channel specified a BCU containing too much text
(more than can ever be transferred with a single host. read operation).
An XIO macro to the channel specified a BCU enqueued to a system queue.
An XIO macro to the channel was used while a task was still waiting on the
ECB in the first buffer of the BCU.
An XIO macro to the channel specified a BCU in which at least one buffer
had too large a text count field in the buffer prefix.
An addressing exception occurred.
An input/output instruction exception occurred, and retry was not possible.
An instruction attempted to branch to storage location X'OOOO'.
A program check occurred in levell.
An XIO macro to the link specified an invalid address. (NCP#).
A level 3 channel adapter interrupt occurred while the channel adapter was
active, but the command register (X'56') did not indicate a Read, Write, or
Write Break command (type 2 CA only).
A level 3 channel adapter interrupt for a host Write or Write Break occurred,
and neither zero count override nor channel stop was indicated. One of these
conditions should be present for every host Write operation.
An initial selection sequence on a type 1 channel adapter was undefined.
An outbound BTU had an invalid chain field.
A data/status sequence on a type 1 channel adapter was undefined.
An XIO to the channel specified a BCU address outside the buffer pool.
A_n XPOAT macro specified an invalid buffer address. (NCP#).
A level 1 channel adapter error occurred with a type 1
CA (NCP1, 2).
A level 1 channel adapter error occurred and the channel
save chain was active with a type 2 CA (NCP1, 2).
An unrecoverable_level 1 channel adapter check has occurred in a type 2
type 3 CA, (NCP#),
Of
X'OOlB'
Zero count override was detected on a host read operation.
NCP/PEB ABEND and EP Hardstop Codes
253
An initial IN ON did not have the zero count override flag set for channel 1/0.
The retry limit for an input or output instruction was exceeded.
The prowam attempted to execute an invalid operation code.
The program attempted to switch channel adapters via an XIO macro when
the logic is not generated into the NCP.
X1lO1D' The program attempted to use an XIO macro for a busy communication line.
X'OJ1 E'
More than one XIO macro was outstanding for the same BCU.
X'OO1 F' An XIO macro to the channel specified an invalid BTU text count.
X1lO2Q'
The INCWAR in a type 2 channel adapter was incorrect {hardware error}.
X'OO21'
The access method pad size is larger than the host buffer unit size.
Outbound data pointers incorrect, program error. (NCP#}.
X'0022'
X'0023'
Invalid PIU address issued to channel. (NCP#).
X'D024'
Out CW execution failure, hardware error. (NCP#).
X'D025'
Level 3 is not in initial selection or data status for type 1/4 channel adapter.
X'0026'
Attention delay PIU counter overflow or under flow.
X'0027'
Attention presented with intermediate queue empty. (Program error).
X'D02B'
UIBLBBA is equal to zero. (Program error).
X1lO2Q'
Dlannel interface is disabled while the NCP is active.
X'OO2A' During initialization a level 3 was not pending on the channel adapter that
is being loaded across.
X'002B' During initialization, a level 3 is pending on a channel adapter which
SYSG ENd inactive.
X'OO2C'
During initialization, a channel adapter which has been SYSGENd inactive
can not be interface disabled within a reasonable time. Manual intervention
may be required.
EP HardstoplPEP Abend Codes
X'OO3O'
Scanner address exception. (EP only).
X'OO31'
l1 scanner ERP - Scanner error occurred during ERP.
X'D032'
L1 scanner ERP - Unable to recover from CCU outbus check. Unable to
locate the failing output X'4x' instruction.
X'D033'
LI CA ERP· Unable to select the failing channeladepter.
L I CA ERP· 1/0 exception check. (EP only).
X'OO34'
X'OO35'
L1 CA ERP - Channel Adapter error occurred during ERP.
X'D038'
LI CA ERp· Unable to recover from CCU outbus check. Unable to locate
the fai!ing output X~6x' instruction.
X'OO37'
L I CA ERp· CCII outbus check did not occur on L2 or L3.
X·OO38'
Initialization - CCU interrupt request detected.
X'0039'
l1 CCU ERP - l5 issued an In or out instruction.
X'OO3A'
Initielization· Adopter check detected.
X'OO3B'
l1 CCU ERP - Unable to recover from inbus parTty check. Unable to locate
retry point for input X'6C'.
X'D03C'
LI CA ERP • Unable to recover from CCU outbus check. Unable to locate
retry point for output X'6C'.
X'D03D' LI ERP· LI errorratethreshoklexc:eeded.
X'D03E'
L1 CCU ERP - Program check. (EP only).
X'003F'
LI ERP· Unable to determine interrupted level.
X'OO4O'
L3 interrupt from PEP and CA not system generated.
Errors Detected by Task MaMgement (Byte 0 = X'OI')
)('Ot02'
A TRIGGER macro specified an invalid aCB.
X'0104'
A reentrant CALL macro specified a non-reentrant subroutine, 01' a level 5
task issued a reentrant CAll macro to code that is not a subroutine.
X'OI05'
A level 5 task used a non·reentrant CALL macro when either the calling task
or the caUed subroutine was reentrant.
X'OO19'
X'OOIA'
X'DOIB'
X'OO1C'
254
3704 and 3705 Program Refer_ Handbook
t·
-
(
X'0107'
X'010S'
: t<'0109'
1W'X'OIOC'
A BHR attempted to use a QPOST macro.
A SETIME macro specified an interval greater than 431 200 seconds.
A BHR attempted to use the QPOST operand on a SYSXIT macro.
A task attempted to use a SYSXIT macro while save area(s) were still
allocated to its queue control block.
X'0100'
X'010E'
A COPYPIU macro specified an RU count too hi~. (NCP#).
A QPOST macro specified an invalid ace address.
X'010F'
X'OIII'
A TPPOST macro specified a BCU with an invalid resource 10.
W;'0112'
X'OII3'
X'0114'
X'OIIS'
A TPPOST macro specified an invalid BCU address (address low).
A TPPOST macro specified an invalid BCU address (address high).
A COPYPIU macro specified an invalid old buffer address (address low).
(NCP3).
A COPYBCU macro specified an invalid old buffer address.
A COPYPIU macro specified an invalid new buffer address (address low).
(NCP3).
X'OIIS'
J'OI17'
X'OIIS'
A COPYBCU macro specified an invalid new buffer address (address hi~).
A task attempted to use an EXECBHR macro when the point 3 SHR queue
was empty.
A user BHR dequeued a BCU and failed to return it to the queue (via an
INSERT macro) prior to the execution of an IBM BHR.
X'0119'
A BHR attempted to use an EXECBHR macro.
X'OI20'
A dynamic save area pool was incorrectly structured.
X'0121'
X'0122'
X'0129'
A SETIME macro specified an ECB address outside the buffer pool.
X'0120'
X'OI30'
X'0131'
A SETIME macro specified an invalid OCB address.
A CHAP macro specified an invalid QCB address.
A task attempted a reentrant return when no save area was currently allocated
to the task.
A POST macro specified an ECa whose status was already Ilevent completeu •
A task attempted to change the dispatching priority of a weiting acB to
APPNOG.
Erron OOlllCted by Queue Management (Byte 0 - X'02'1
X'0201'
An ENQUE macro specified an element that was already enqueued.
X'0202'
X'0203'
'JX'0204'
X'020S·
X'0208'
X'0207'
An INSERT macro specifiad an element that was already enqueued.
An EXTRACT macro specified the same address for the QCB and the
positional element.
Unassigned.
An INSERT macro specified an element at the end of a queue.
An INSERT macro specified the same address for the element to be inserted
and the element after which it was to be inserted.
An INSERT macro specified the same address for the element to be inserted
and the QCB governing the queue.
An ENQUEUE macro specified the same address for the element to be enqueued
and the QCB governing the queue.
A BHR attempted to use an ENQUE rnaa'o specifying an active queue comrol
block.
X·0210'
'-I
An ENQUE macro specified an element outside the buffer pool.
X'0211·
An INSERT macro specified an element outside the buffer pool (positional
X'0212'
element).
An INSERT macro specified an element outside the buffer pool (insertion
element).
X'0213·
An EXTRACT macro specified an element outside the buffer pool (positional
X·0214'
element).
Unassigned.
NCPIPEP ABEND and EP Hardstop Cod..
2SS
X'0216'
An AOVAN macro specified an element ouUide the buffer pool (positional
element).
A OEaUE macro specified an invalid QCB address.
An ENQUE macro spectfied an invalid aCB address.
A POINT macro specifted an invalid QCS address.
An INSERT macro specified an invalid QCB add",ss.
An INSERT macro specified the active QCB.
X'021 B'
An ENQUE macro attempted to enqueue the active acS.
Errors 0 . _ by Buffer _agament IBVIII 0 = XW')
X'03OI'
A CHAIN macro specified a buffer that wa. .lreadv chained.
X'0302'
A CHAIN macro specified the same address for the buffer to be chained .nd
the buffer to which it was to be chained.
X'0304'
A RELEASE macro specified. BCU containing more buffers than the $Vstem
limit on buffers per BCU.
A RELEASE macro specified a BCU enqueued to a system queue.
X'03OB'
X'0216'
X'0217'
X'02IB'
X'0219'
X'02IA'
X'0307'
The BCU specified in a RELEASE macro had;l task still waiting on iU event
X'03OA'
control block.
A LEASE macro specified a buffer count too high.
X'03OF'
X'03IO'
X'03II'
X'0312'
X'0314'
X'0315'
X'0316'
X'03IS'
X'0319'
X'0320'
Xll321'
A RELEASE macro specified. buffer outside the buffer pool (buffer
address low).
A CHAIN macro specified a positio~1 buffer outside the buffer pool.
A CHAIN macro specified that a buffer outside the buffer pool be chained.
An UNCHAI N macro specified a positional buffer outside the buffer pool.
A SCAN macro specified a buffer outside the buffer pool (positional buffer
address).
A RELEASE macro specified a buffer outside the buffer pool (buffer address
high).
Initialization rollttnes were unable to allocate buffers.
A LEASE macro specified an ECB address outside the buffer pool.
A LEASE macro specified a buffer count of O.
The buffer pool size and the buffer availability count were in conflict.
Less than 20 buffers were formatted during initialization of the Nep.
Erro" DeteCI8d ..., Supervisory Servias (Byte 0 = X'04')
X'0401'
A GETSYTE m8£ro specified a BCU address outside the buffer pool.
A PUTBYTE macro specified a BCU address outside the buffer pool:
.x'0403'
X'0405'
A GETBYTE macro specified a BCU with an incorrect text length.
A PUTBYTE macro specified a BCU with an incon-ect text offset (in one or
more of the buffer prefJx fieldsl, or a PUTBVTE macro with the operand
UPDATE'" YES specified a 8CU with an incorrect text length.
X'0407'
A GETIME macro specified'invalid options.
_
.. Related and Mi....
Errors (llytas X'06', X'07', X'OS')
X'Q406'
'.noous
X'0501'
X'0502'
The retry limit for unresolVed level 1 interrupts was exceeded.
The retry limit for unl'esolved level 3 channel adapter interrupts was exceeded.
X'0503'
A nonrecoverable channel adapter check occurred.
A nonrecoverable communication scanner check occurred.
A type 2 channel adapter cycle steal protection exception occurred.
A type 2 channel adapter cycle steal addressing exception occurred.
The retry limit for recoverable channel adapter checks was- exceeded.
The retry limit for recoverable communication scanner checks was exceeded.
X'0504'
X'0505'
X'0506'
X'0507'
X'05OS'
X'05OA'
X'060S'
X'05QC'
266
A channel adapter check could not be resolved.
A communication scanner check could not be reSOlved.
A program level 1 interrupt could not be reSOlved.
3704 and 3705 Progr.m Reference Handbook
~--"
~
X'OSOO'
X'OSOE'
J'OSOF'
X'OS10'
A machine check or IPL request was not serviced by hardware.
A program level 3 interrupt could not be resolved.
A program level 4 timer interrupt request expired and the timer interval was
not scheduled.
NCP generation conflict-the NCP was not configured for the type of
communication scanner installed.
X'OS21,
NCP generation contiict-progra~ level 1 was not configured for the type of
X'OS22'
channel adapter installed.
NCP generation conflict-an interrupt occurred from an inactive or undefined.
channel adapter. The channel adapter, if installed, should have been switched
offline by the operator at the 3705 and should have remained disabled.
a'OS23'
X'OS24'
Type 3 scanner addressing exception.
Type 3 scanner storage protection exception.
ANS initiated by the remote NCP.
X'0701'
ANS initiated at the remote controller's panel.
X'0702'
X'0703'
SIM received by the remote NCP.
X'OSOO'
The link used by load program 2 was not defined at NCP generation.
"';Errors Detected in Level S (Byte 0 = X'10. X'30)
X'1001'
A BCU with a Restart command contained an error in the text length field.
The line control block (LCBl contained an invalid resource 10.
X'1002'
X'1003'
X'1004'
X'1005'
X'1006'
X'100l'
X'100S'
X'1009'
X'100A'
X'100B'
X'100P'
X'1000'
X'100E'
No Reset command was found at the end of an operation that was being
reset.
X'100F'
The device base (DVBl contained an invalid resource 10.
An invalid system resource 10 was specified in the BCU.
An invalid checkpoint data length was specified in ~he BCU.
The BH set pointer (OVIBHSET) in the OVB did not match any entry in the
system BH set table (BST).
,-,X'lOID'
X'1011'
X'1012'
X'1OEE'
X'10FF'
X'3000'
~J'3001'
"'X'3002'
X'3003'
X'3004'
X'300S'
X'3006'
r
The subtask sequence pointer in the leB was not initialized.
The BTU contained an invalid command modifier.
After BHA execution, the device input queue was empty (point 1 I.
After BHR execution, the line I/O Queue was empty (point 21.
After BHR execution, the point 3 BHR queue was empty.
A task associated with the point 3 BHR queue was dispatched.
The backspace BHR was dispatched, but the queue was empty.
A data manipulation error occurred in the backspace BHR.
The date/time BHR was dispatched, but the queue was empty.
AI~:"-'skiP' flags were set in the service order table (SOT).
The number of dial digits passed from the host was not equal to the BTU
text length.
X'300l'
fi/<'300S'
X'3009'
X'300A'
IOBPOll points outside SOT.
Pending sessions.count is negative.
A task was dispatched with an empty aCB. (NCP#l.
Invalid UIB status in PIU. (NCP#).
Invalid XIO return code. (NCP#).
Invalid XPORT return code. (NCP#).
Module CXDESSA entered when Deactivate Line halt is in progress. (NCP#).
CXOCPSI unable to rout. PIU to SSCP. (NCP#I.
Reset Immediate XIO failed. (NCP#1.
Invalid PIU Format. (NCP#I.
Segmentation parameter N = zero. (NCP#1.
Segmentation parameters conflict. (NCP#I.
Run Terminator triggered with invalid status. (NCP#).
NCP/PEP ABEND and EP Hardstop Codes
2S7
X'300B'
X'3OOC'
X'3000'
X'300E'
X'300F'
X'3010'
X'3011'
X'3012'
X'3013'
X'3014'
X'301S'
X'3016'
Invalid Network Address in LKB. (NCP#).
Invalid input passed to routine. (NCP#).
LCB contains no PIU. (NCP#I.
CXDKFMR passed a request code to a routine which does not handle that
request code. (NCP#) ..
XID link failed on validated PIU. (NCP#).
XPORT failed on validated PIU. (NCP#I.
XID SETMDOE failed. (NCP#).
Invalid UIB type field. (NCP#).
Invalid network address in CCU •. (NCP#)
Remote NCP received SNRM from local NCP. (NCP#).
Remote NCP ,eoeivad DISC from local NCP. (NCP#I.
X'3017'
Remote detected permanent error in path to local and ANS is not in
system. (NCP#).
Inbound flow in SSCP-PU session of a type 1 PU.
X'301S'
Begin bracket PIU not on queue.
SOLCiBSC Path Function Abend Codes
A OEaUE macro was issued by SPF CPM-in and there was no error Ptu on
X'3019'
the APPL process OCB.
X'301A'
An ADVAN maaD was issued by SPF CPM-in and there was no error flU
X'301B'
on the APPL process OCB.
An XPORT macro, issued by SPF CPM-in, failed for unknown reason.
An,XPORT macro, issued bV SPF CPM-in. failed for an unknown feason
X'30le'
during FI01-to-FIDO conversion.
X'3010'
X'301 eo
X'301F'
X'3020'
X'3021'
X'3025'
X'3026'
X'3027'
X'3028'
258
An XPORT macro, issued by SPF CPM-in, failed for an unknown reason
during the export of a FIOI PIU.
An XPORT macro was issued by an IBM point 3 BHR before the PIU was
converted.
A DEQUE macro was issued by SPF CPM·out and there was no error PIU
on the APPL process nCB.
An XPORT macro, issued by the build error module (CXDSERR), failed
for an unknown reason.
A POINT macro was issued by the build error module (CXDSERR) and
there was no PIU on the APPL proce!;s aCB.
lines or ,links not quiesced count went negative.
Auto network shutdown RVT scan error. (SNA)
An undefined Contact Poll command was detected dUring SNA auto
network shutdown.
The remote NCP detected a condition on the active link to the local NCP
which requires backup link monitoring. Although there are backup links
to the local controller, there is no backup monitor code.
3704 and 3705 Program Referenoe Handbook
'"
W
Load Program 2 (LPG2) Error Cod.. (conditiom causing an unconditional hardstop).
X'30FO'
No local/remote communication link defined as active in the remote ILP
configuration data set (COS).
X'30Fl'
Type 1 Scanner failed to enable, hardware error or CDS definition error.
X'30F2'
CDS invalid.
Load Program 2 (LPG2i Abend Cod.. (condition. cau.ing a conditional hardstop).
X'3F01'
No local/remote communication link active (enable failed or transmit initial
failed).
X'3F02'
OISC (disconnect) received while monitoring one line. LPG2 re-IPLs to
monitor all COS lines.
X'3F03'
SNRM (set normal response mode) received while monitoring one line and
X'3F04'
X'3F05'
Timer expiration. User-specified inactive interval has expired.
load final not yet received. LPG2 re-IPLs to monitor all lines.
X'3F10'
Level 1 error.
SIM (set initialization mode) received during the load or dump state.
NCPIPEP ABEND and EP Hardstop Codes
259
Section 13: line Character Codes
ASCII OMiracter Code (even parity 2848/22601
S/3fiJJ
PDF
Code
03
06
OA
18
21
22
24
27
28
2.
20
2E
&/370
Code
03
2E
37
18
18
18
5B
06
0
3
5
6
9
02
04
05
07
E2
E4
E5
E8
E9
60
7C
C3
CS
C6
C9
01
03
3F
41
42
44
65
66
69
~~..
65
71
72
74
77
7.
7E
~
f
+
4B
40
4E
50
53
55
56
59
SA
SF
60
63
3C
(Note 2)
(Note 3)
OA
6A
5A
3A
C8
3A
42
22
12
(Note 1)
40
4E
60
4B
36
39
OC
ETX
ACK
LF
CAN
66
58
36
4E
2E
IE
7E
41
21
11
71
-
<
?
A
8
0
G
Code
81
82
01
02
37
3D
84
95
AO
A3
AS
AS
A9
AA
AC
AF
Bl
B2
B4
B7
B8
BB
BD
BE
C3
C5
C6
C9
CA
69
59
K
CC
39
M
N
65
•
65
U
35
40
20
70
03
63
V
y
Z
CF
01
02
04
07
08
00
El
E2
E4
E7
EB
ES
ED
EE
58
33
5
@
C
E
F
fB
DB
47
'"
Q
09
E3
E6
E7
4F
27
R
17
77
T
W
OF
3F
I
Notes.
1. Displayed on the
Model 4 Printer.
2. Displayed on the
mark 0).
3. Displayed on the
4. Olsplayed on the
(¢I.
S/370
H
I
J
L
0
~
PDF
Code
09
05
4B
2.
ASCII
S/3fiJJ
Graphics
Character
72
47
35
21
ASCII
Control
ilia,.....
70
48
FO
F3
F5
F6
F9
5E
4C
6F
Cl
C2
C4
C7
30
33
Line
Code
60
30
X
f\J
F3
F5
F6
F9
FA
FC
40
7B
6C
50
50
5C
6B
61
Fl
F2
F4
F7
F8
5E
7E
6E
83
B5
B6
89
91
93
96
98
99
A3
A6
A7
A7
Bl
82
.
84
87
92
94
96
97
A2
A4
AS
AB
A9
SF
Un.
Code
CO
AO
90
04
82
E2
02
B2
CA
AA
9A
FA
C6
A6
96
F6
8E
EE
DE
BE
El
01
Bl
C9
A9
99
F9
C5
A5
95
F5
80
DO
C3
A3
93
F3
BB
EB
08
BB
87
E7
07
.7
CF
AF
9F
Control
Qlar8Gter
Graphics
1lIa_"
SOH
STX
EDT
NAK
5'
#
"&
l
i
1
2
4
7
8
;
.
0
,>
f
i
i
I
a
q
,
t
.
w
x
{Note 41
b
d
9
h
k
m
n
P
,
,"
V
,
2260 as the New Line {AI symbol. Causes a carriage return and line feed on the 1050
2260 as the EOM (-I symbol. Prints on the 1050 Model 4 Printer as the exclamation
2260 as the Check (-) symbol. Prints on the 1050 Model 4 Printer as the quote (").
2260 as the Start MI { .. I symbol. Prints on the 1050 Model 4 Printer as the cent sign
Line Character Codes
261
S/38O
PDF
Codo
00"
00"
01
02
03"
04
05"
86
07
OS
88
SA
SA
08
8C
00
OE
SF
10
91
92
13
94
15
16
17"
U..
Codo
00
17
01
02
03
Codo
37
20
2E
2F
16
04
05
15
25
OS
OC
OD
IE
IF
40
4F
7F
78
A4
68
25
26
8C
60
7D
4D
9B
19
lA
lA
lA
9B
lC
90
9E
IF
20
AI
A2
A7
AS
29
2A
AB
2C
AD
AE
2F
BO
31
32
B3
34
86
B6
37
38
B9
SA
3B
BC
3D
50
6C
4E
68
60
4.
61
FO
FI
F2
F3
F4
F6
F6
F7
F8
F"
7A
6E
4C
7E
11-1._.
-
ASCII
SI370
00'
(00)"
01
02
03"
05"
86
07
OS
B8
(SA)
SA
08
8C
00
OE
SF
10
91
92
13
94
15
16
17"
9B
19
lA
lA
(IA)
9B
lC
90
9E
IF
20
AI
A2
a..r.....
G_
QIafICIIr
NUL
NUL
SOH
40
STX
ETX
EOT
END
ACK
BEL
85
HT
LF
LF
VT
FF
CR
SO
51
OLE
DCl
OC2
Dca
0C4
NAK
Cl
C2
C4
45
C7
CB
49
4A
C8
4C
CO
CE
4F
DO
51
52
03
54
05
OS
67
SYN
CAN
68
DB
EM
SU8
SU9
SU8
ESC
FS
GS
RS
US
Sf'
25
26
A7
AS
29
2A
AB
2C
AD
AE
2F
BO
31
32
B3
34
B6
88
37
38
SI370
Code
6E
6F
7C
Cl
C2
ca
C4
C5
CO
C7
CO
DA
5B
I>C
50
6E
OF
E
H
I
J
K
L
M
N
49
4A
CB
4C
CD
CE
4F
DO
51
0
P
Q
R
S
T
U
V
62
03
54
DS
06
57
W
X
y
Z
68
DB
OA
6B
DC
60
6E
OF
EO
61
62
I
\
I
~
-
·•
·
••
b
c
E3
84
E5
f
E6
67
68
E9
EA
;
j
k
I
m
88
EC
60
·•
···
.,
BE
EF
70
,q
F2
73
F4
t
76
w
x
'"
I'll
79
7A
FB
7C
FD
FE
7.
Gr.phia
a.._
A
B
C
0
E
F
G
... ,.
AI
AS
A7
AS
~)
262
Uno
Codo
3E
BF
40
Cl
C2
43
C4
45
. .
43
1IT8
23
A4
S/38O
PDF
Codo
3.
BF
V
(
I
DEL
l-
S/3f1D
PDF
Code
01
01
02
02
02
03
03
04
05
05
DB
DB
07
07
08
08
08
09
09
DA
DA
DB
DB
DB
08
DC
OC
00
00
DE
DE
OF
OF
10
10
smo
Code
C5
86
16
I.
25
81
el
40
A2
E2
89
C9
A4
E4
03
00
26
84
C4
89
09
2F
79
91
01
96
05
8B
ea
83
C3
92
02
A3
E3
AS
E9
93
03
AB
E8
88
ft
ft
12
12
13
13
14
14
ea
16
AB
15
E8
16
97
IS
07
17
17
08
[I - 1nonly.
..
Uno
Code
10
(101
08
(88)
(08)
(181
lB
04
(14)
14
(OCI
DC
(leI
lC
(021
(82)
(821
(121
12
(DAI
DA
9A
94
(IAI
lA
(061
06
(181
16
(DEI
DE
(lEI
IE
(011
01
(ftl
ft
(091
09
(191
19
(051
06
(151
16
(001
DO
(tDl
10
Ba.....
Control
0 .......
a . - a.......,
E
E
LF
LF
LF
A
A
SP
S
S
I
I
u
U
eR
eR
CR
0
0
R
R
BELL
BELL
J
J
N
N
F
F
C
C
K
K
T
T
Z
Z
L
L
w
W
H
H
v
V
P
P
Q
Q
S/3f1D
PDF
Code
18
18
19
19
lA
lA
IB
IC
lC
10
10
IE
IE
IF
IF
IF
IF
IF
IF
81
.
8/370
Code
83
06
82
C2
B7
C7
3B
94
D4
A7
E7
AS
E5
06
07
17
32
37
38
F3
80
84
40
85
8B
7A
F8
F7
68
84
F4
6B
40
F5
7F
60
5A
F2
78
F6
FO
Fl
F9
6F
60
38
4B
3F
SI
El
6E
87
89
89
SA
6C
8F
90
91
92
93
93
94
96
88
97
88
99
9A
.
9C
90
90
90
9E
9F
08
U..
Code
(031
03
(131
13
(DB)
DB
lB
(on
.....
.........
Co.....
Graphics
Ch_
Q
Q
B
B
G
G
FIGS
M
M
07
(17)
17
(OFI
OF
IF
11F)
11F)
(lFI
(IFI
(IFI
90
98
(84)
8E
8C
9C
92
(B81
SA
8B
X
X
V
V
LTRS
LTRS
LTRS
LTRS
LTRS
LTRS
3
SP
1/8
8
7
$
S
I.
9E
81
91
(
89
I
2
96
99
-
4
7/8
1/2
~
3/4
1/4
2
85
#
96
BD
6
0
1
9
90
83
93
88
(9B)
B7
(97)
97
(971
SF
[9F)
1
FIGS
SP
LTRS
5/8
'"
/
/
3/8
LTRS
I) = Out onlv.
line Character Codes
263
BCD Character Code 1
PDF
Codo
01
02
04
07
08
OB
00
00
OE
OE
10
13
15
16
19
lA
lC
IF
20
23
25
26
29
2A
Codo
60
7C
F8
98
F4
84
OF
14
OE
24
F2
82
DO
EO
96
A6
36
06
Fl
81
99
A9
95
AS
2C
36
2F
31
32
05
93
A3
34
34
02
37
38
3B
3D
30
3E
40
43
45
46
49
78
4B
F7
87
17
32
27
U ..
Codo
40
20
..
1581
1581
1381
38
16
16
76
OE
6E
5E
(5EI
A4
29
34
19
79
..
64
67
89
6B
60
60
6E
70
73
75
76
F5
85
00
15
25
F3
93
5B
6B
- Out
In only.
only.
45
25
15
75
EOA
$
EP$
88
88
88
3F
7A
C4
14
24
SF
C2
06
E6
38
.,,
9A
1
#
7
Il
Il
PRE
9
SP
9C
9F
AO
A3
AS
A6
A9
AC
AF
Bl
82
84
B7
88
BB
80
BE
CO
C3
&
q
V
m
u
PN
PF
,k
0
PZ
6
f
BS
EOS$
E08
j
I
9
i
5
0
LF·CA
IF-CR
Index
3
®
C8
AA
00
60
50
130J
130]
43
23
13
73
08
6B
15BI
58
38
07
67
57
37
5C
87
99
I
~
97
A7
37
07
6D
4A
84
w
RS
HT
S/370
Codo
7A
7C
7F
81
82
0
C5
CO
CO
CA
CC
CF
D.
02
D.
08
08
00
DE
El
E2
E4
E7
E8
EB
ED
EE
FO
F3
F5
F6
F9
FA
FC
08
7E
Cl
09
E9
05
E5
35
05
03
E3
4F
48
7F
C7
17
27
40
4E
08
E8
04
E4
34
04
02
E2
Uno
Codo
4F
2F
IF
[7FJ
CO
eo.....
..........
.........
Graphics
P
©
EOT
t
AO
90
FO
1981
..
E8
108J
IB8J
x
&L
,H
0
RES
8YP
84
E4
8
0
CC
AC
9C
IFCJ
82
E2
02
B2
CA
AA
(9AJ
IFAJ
C6
A6
96
IF6]
8E
EE
10E]
IBE]
181J
El
01
Bl
W
UC
lC
.
A
R
Z
N
V
RS
HT
EOA
(i)
@
..
G
Il
PRE
SP
+
Q
Y
M
U
C9
A9
I99J
IF9J
C5
l
T
PN
PF
K
AS
S
50
96
70
C6
16
26
01
6F
40
C9
80
EO
10DJ
IBOJ
!
FF
()=
264
BCD
S/38O
79
*
,n
26
PDF
Codo
80
8E
90
93
1
52
04
61
F9
2
b
UC
lC
49
91
4
4C
2C
lC
7C
02
62
AS
16
03
26
"
d
RES
RES
BYP
BYP
MZ
RM
94
86
8
04
4F
51
57
58
5B
50
5E
5E
61
62
®
54
34
32
4A
2A
11A)
7A
46
Graphics
Oil
84
..
92
A2
FO
CO
F6
ConUoI
08
3E
01
61
51
31
40
50
......... ..........
10
70
4A
4C
52
54
[1
S/38O
S/37O
3704 and 3705 Program Reference Handbook
C6
C5
15
25
5E
C3
SA
68
07
E7
37
07
F
Eg:
®
C3
A3
93
F3
BB
E.
10BJ
IB8]
87
E7
07
[871
CF
AF
9F
IFF]
,
J
I
I
"
E
LF-CR
Attn
C
!
®
P
©
EOT
DEL
X
BCD Character Code 2 (NCP
#
01370
Code
Code
01
02
60
7C
F8
88
F4
04
07
08
OB
OD
00
OE
OE
10
13
15
16
19
lA
lC
IF
20
23
25
26
29
2A
2C
2F
31
32
34
34
37
38
3B
3D
3D
3E
40
43
45
46
49
4A
4C
4F
51
52
54
57
58
SB
50
5E
5E
61
62
54
67
68
6B
60
60
6E
70
73
75
76
84
OF
14
OE
24
F2
82
DO
EO
96
A6
36
06
Fl
81
99
A9
95
AS
35
05
93
A3
02
7B
4B
F7
87
17
32
27
40
50
98
A8
94
...
34
04
92
A2
FO
CO
F6
B6
16
03
26
91
61
F9
89
F5
85
00
15
25
F3
83
5B
68
(I - In only,
() '" Qut only,
Only)
BCD
0/360
PDF
Uno
Code
40
20
10
70
Com,o/
a..._,
®
@
8
h
4
d
OB
68
(58)
(58)
(38)
38
04
64
54
34
4C
2C
lC '
7C
02
62
52
32
4A
2A
[lA]
7A
46
26
16
16
76
OE
6E
SE
(5E)
3E
01
61
51
31
49
29
19
79
45
25
15
75
00
60
50
(3D)
[301
43
23
13
73
OB
6B
(5B)
5B
3B
07
67
57
37
..........
Graphics
RES
RES
BYP
BYP
,
0
w
,,1
,
,"
RS
HT
$
IL
IL
PRE
SP
,I
#
7
9
&
q
y
m
u
PN
PF
,
k
0
PZ
6
f
BS
EOB@
EOB@
i
/
9
,~
LF-CR
LF-CR
Index
,3
®
79
7A
7C
7F
81
82
88
88
UC
LC
E~
Code
87
2
b
EOA
01370
Cod.
84
MZ
RM
$
BCD
0/360
PDF
8B
80
8E
90
93
99
9A
9C
9F
AO
A3
AS
AS
A9
AA
AC
AF
Bl
B2
B4
B7
B8
BB
BD
BE
CO
C3
CS
C6
C9
CA
CC
CF
01
02
04
08
DB
DO
DE
El
E2
E4
E7
E8
EB
ED
EE
FO
F3
FS
F6
F9
FA
FC
FF
97
A7
37
07
60
4A
5C
C8
3F
7A
C4
14
24
SF
C2
06
E6
U ..
Code
,.
[7F]
CO
AO
©
EOT
•
x
&EL
!
H
(88)
88
E8
108)
IB8)
84
E4
CC
AC
82
E2
02
B2
CA
AA
19A}
IFA(
C6
A6
96
F6
8E
EE
[DE]
[BEl
[81)
El
01
81
C9
A9
(99)
(F9)
CS
AS
95
80
ED
100)
[BD]
C3
A3
93
F3
8B
EB
lOB)
C6
C5
15
25
SE
C3
5A
12
07
E7
37
07
Graphics
FO
7E
Cl
09
E9
05
ES
35
05
03
E3
4F
13
7F
C7
17
27
40
4E
08
E8
04
E4
34
C9
..........
90
9C
[FC]
02
E2
50
70
C6
16
26
01
6F
40
~.racter
4F
2F
38
06
04
eo.....
0
RES
8YP
B
0
W
uc
LC
:
A
R
Z
N
V
RS
HT
EOA
G)
@
L
T
"
G
IL
PRE
SP
+
Q
Y
M
U
PN
PF
K
S
!
F
BS
EOB
®
,
J
(
I
"
E
LF-CR
[BBI
Attn
87
E7
07
87.
CF
AF
9F
IFF)
®
C
!
P
©
X
EDT
DEL
Line Character Codes
265
Correspondence CfI
PDF
Code
01
02
04
07
08
DB
OD
DE
10
13
19
lA
lC
lF
20
23
25
26
29
2A
2C
2F
31
32
34
37
38
38
3D
3D
3E
40
43
45
46
49
4A
4C
4F
51
52
54
58
5B
5D
6E
61
62
64
67
68
6B
6D
6D
6E
70
73
75
76
79
7A
$/360
S/370
Code
5A
A3
F4
61
F5
97
14
24
F2
7E
89
92
36
06
Fl
87
A2
88
9'
84
35
05
A5
A4
F.
60
F8
68
17
32
27
40
91
96
93
7D
85
34
04
4B
95
A9
F6
98
16
26
94
A7
FO
A8
F7
5E
OD
15
25
F3
B6
A6
82
81
83
..
" acte
Line
Codo
40
20
10
70
08
6B
58
38
04
64
4C
2C
lC
7C
02
62
52
32
4A
2A
lA
7A
46
26
16
76
DE
6E
5E
15E)
3E
01
61
51
31
49
29
19
(79)
45
25
15
OD
6D
5D
[3D1
43
23
13
73
DB
68
(58)
5B
3B
07
67
57
37
4F
2F
Cod
Correspondence
Control
Graphics
Charactitf
"""......
®
I
I
7C
7F
81
82
5
P
84
6B
t
4
RES
8YP
2
·
;
k
UC
LC
,,
1
·,
h
d
RS
T,b
E~ @
•-8"
IL
PRE
PRE
SP
j
0
I
·
PN
PF
,"
6
q
BS
EOB
®
,m
0
V
7
;
LF·CR
LF·CR
Index
3
f
®
S/360
PDF
Codo
w
$/370
Line
Cod.
Codo
37
07
6E
.3
58
6C
D7
24
7C
4E
C9
D2
36
lF
[7F1
CO
AD
8B
8E
90
93
99
9A
9C
9F
AD
A3
A5
A6
A9
AA
AF
Bl
B2
84
B7
B8
88
8E
CO
C3
C5
C6
C,
CA
Dl
D2
D4
D8
D8
DD
El
E4
E2
E7
E8
E8
EB
ED
ED
EE
FO
87
F3
F5
F6
F9
FA
FC
,,
b
( J-Inonlv.
Out onlv.
( ) =
266
3704 and 3705 Program Reference Handbook
06
4F
C7
E2
CB
D9
C4
05
E5
E4
4D
6D
5C
6B
27
40
Dl
D6
D3
7F
C5
48
D5
E9
4C
D8
16
D4
5D
E7
E8
50
3F
79
14
15
25
7A
6F
C6
E6
C2
Cl
C3
37
Correspondence
Contrm
Graphics
Character
Character
EOT
(£)
@)
T
90
$
88
E8
[88J
%
P
BYP
84
E4
CC
AC
[9C1
[FC1
82
E2
D2
B2
CA
AA
[FA]
C6
A6
96
F6
8E
[EEl
[BEl
[811
El
Dl
81
C,
A.
[C51
AS
9.
8D
ED
[DOl
C3
93
A3
F3
8B
(E81
EB
[D81
[DB]
[8B1
87
FO
E7
07
B7
CF
AF
[9F1
@
+
I
K
UC
LC
[
±
G
S
H
R
D
Tob
V
EOA
@
U
I
-
PRE
SP
J
0
L
E
N
,
Z
Q
BS
M
I
EOT
©
X
Y
&
RES
LF·CR
Attn
#
?
F
W
EOT
©
B
A
C
Co<'''PO nde n.. Ch araeter Cod.2 INCP#O ny
I)
Correspondence
8/360
PDF
$/370
Line
eon"",
Graphics
Codo Codo
Codo
Character
Character
01
SA
40
!
('!)
02
04
07
06
OB
00
OE
10
13
19
lA
Ie
IF
20
23
25
26
29
2A
2C
2F
31
32
34
37
38
3B
3D
3D
3E
40
43
45
48
49
4A
4C
4F
51
52
64
58
5B
50
5E
81
62
64
67
68
68
60
60
6E
70
73
75
76
79
7A
A3
F4
61
F5
97
14
24
F2
7E
89
92
36
06
Fl
87
A2
88
99
84
35
OS
AS
A4
F9
60
F8
6B
17
32
27
40
91
96
93
70
85
34
04
4B
95
A9
F6
98
16
26
94
A7
FO
A8
F7
5E
00
.
15
25
F3
A6
82
8,
83
[l-lnonly.
20
10
70
64
4C
2C
lC
7C
02
62
52
32
4A
2A
lA
7A
48
26
16
76
OE
6E
5E
(5E)
3E
01
61
51
31
49
29
19
1791
45
25
15
57
37
4F
2F
84
88
RES
BYP
BB
8E
2
·
;
k
d
AA
"
9
-
co
IL
PRE
PRE
SP
i
0
I
·
,n
8
q
®
m
x
0
Y
7
;
LF·CR
LF-CR
Index
3
f
®
AF
81
82
B4
B7
B8
BB
BE
w
·
b
C3
C5
C6
C9
CA
Dl
02
0'
08
08
oD
El
E4
E2
E7
E8
EB
EB
ED
ED
EE
FO
B7
F3
F5
FB
F9
FA
FC
09
C4
05
ES
E4
40
60
5C
12
27
40
01
06
03
7F
C5
13
05
E9
4C
08
16
04
50
E7
E8
50
3F
79
14
15
2.
7A
6F
CB
EB
C2
Cl
C3
37
Graphics
Character
©
®
T
$
%
P
BYP
@
+
I
E4
,
,
4F
C7
E2
C8
EDT
84
AC
[9CI
{Fe]
82
E2
D2
B2
CA
8
BS
EOB
E8
[B81
CC
06
Control
Character
88
C9
,
PN
PF
IF
[7FI
CO
AO
90
02
36
1
9
E~ @
93
37
07
6E
E3
5B
6C
07
24
7e
4E
Correspondence
Uno
Codo
99
h
RS
T,b
80
S/360
S/370
Cod.
9A
9C
9F
AO
A3
AS
AS
A9
ue
LC
00
60
50
[3D]
43
23
13
73
08
BB
[581
58
3B
07
67
5.
P
4
06
58
38
04
I
7C
7F
81
82
t
68
PDF
Cod.
K
UC
LC
[
AA
[FA]
C6
A6
96
F6
8E
EE
[8EI
[811
El
01
Bl
C9
A9
C5
AS
95
80
ED
1001
C3
93
T,b
EOA
@
V
U
I
-
PRE
SP
J
0
L
E
N
Z
¢
Q
BS
M
I
A3
F3
8B
IEBI
E8
[081
[081
[881
87
FO
E7
07
87
CF
AF
[9FI
±
G
S
H
R
0
EDT
©
X
Y
&
RES
LF-CR
Attn
#
?
F
W
EDT
©
B
A
C
,
{ ) = Out only_
Line Character Codes
267
PDF
'E8CD
5/370 1 oj..
Code
40
04
7C
F8
07
88
20
10
70
08
F4
08
DB
84
00
88
OF
I.
DE
24
F2
82
00
EO
l58i
58
01
02
00
DE
DE
10
13
15
16
I.
lA
lC
IF
20
96
AS
38
06
25
26
F1
81
99
A9
29
95
2A
2C
2F
31
32
34
A5
35
05
93
A3
02
7B
4B
F7
87
00
23
34
37
38
38
30
30
30
3E
40
43
45
46
49
4A
4C
4F
51
52
54
57
58
5B
50
5E
5E
61
62
64
67
68
6B
60
60
6E
70
73
75
76
{I
"51360
Code
60
Code
17
32
27
40
50
98
A8
94
A4
34
04
92
A2
FO
CO
F6
86
16
03
2ti
91
61
FO
89
F5
85
00
15
2.
F3
B3
5B
01
(3&!
38
04
eo_,
Ch .......
Q'l}
8
h
4
d
RES
RES
BYP
8YP
34
4C
2C
lC
7C
02
62
52
32
4A
2A
(IAi
7A
46
2ti
(16)
16
76
DE
6E
(5E)
5E
15E)
3E
01
61
51
31
2
b
49
29
[19]
79
45
25
15
75
00
60
50
(3D)
(30i
43
23
13
73
DB
6B
(58)
5B
3B
07
67
57
(37)
MZ
RM
•
RS
HT
I
~
E~ 0
r
#
#
7
9
Il
Il
Il
PRE
SP
q
y
m
u
PN
PF
,k
0
PZ
6
f
~
Eoa 8
j
I
9
i
5
0
Nl
NL
cF
AS
AA
AC
AF
.,
82
B4
B7
88
BB
BO
BE
C3
C5
C6
C9
CA
CC
CF
01
02
D4
08
DB
00
DE
El
E2
E4
E7
E8
EB
EO
EE
FO
F3
F5
F6
F9
3
®
AS
co
&
$
®
IF
EDT
617
CO
4A
AD
6C
99
9A
oe
9F
AD
A3
AS
FA
FC
FF
36
06
7E
Cl
os
E9
05
E5
35
D.
03
E3
7F
5F
sE
C7
I7FI
34
E2
50
70
C6
16
26
01
6F
40
C9
6C
C5
15
25
5E
C3
5A
4F
07
E7
37
07
In only.
3704 and-3705 Program Reference Handbook
x
,®"l
f
H
E8
(D8i
(B8i
0
RES
BYP
8
0
W
UC
lC
93
"
E2
02
82
CA
AA
[gAl
(FAi
C6
A6
96
F6
A
R
Z
N
V
RS
HT
E~ @
G
EE
(BBl
l
T
).
BE
B7
E7
07
.7
CF
AF
(9FI
[FF]
,Ii.
<
84
E4
CC
AC
(oei
[Fe]
(BE]
(81i
El
01
Bl
C9
A9
(991
{49}
C5
A5
95
80
EO
(DOl
(BOI
C3
A3
93
F3
B3
EB
(OBI
.04
:02
P
©
FO
27
4E
08
E8
04
E4
Character
90
(DEI
40
G_'"
88
17
( ) '" Out only.
268
,-
Control
Character
37
4F
2F
C8
7A
C4
14
24
4C
C2
06
E6
88
80
8E
90
U..
Code
6B
97
A7
37
07
87
93
,,
,"
SI360
S/310
Cod.
84
w
,1
BS
EOB
76
79
7A
7C
7F
81
82
0
UC
lC
EOA
PDF
Code
88
64
54
""".....
-
GraptJics
Il
PRE
SP
+
Q
Y
M
U
PN
PF
K
S
!
F
BS
EDB
®
J
?
I
I
%
E
Nl
IF
;
C
I
I
®
P
©
EDT
DEL
X
11"-"
EBCDIC Charactar Code
EBCDIC
PDF
81360
8/370
line
Cod.
Cod.
Cod.
05
06
07
OA
08
DC
00
OE
OF
00
01
02
03
04
05
06
07
OA
DB
OC
00
DE
OF
00
01
02
03
04
10
10
11
12
13
14
15
16
11
12
13
14
15
16
17
17
lB
19
lA
lC
18
19
lA
lC
10
1E
10
IE
IF
20
21
22
24
25
26
27
2A
20
2F
32
3,
35
36
37
3C
30
3F
,0
4A
48
'C
40
4E
4F
50
SA
5B
5C
50
5E
5
A
M
E
A
S
P
0
F
C
0
0
E
1F
20
21
22
24
25
26
27
2A
20
2F
32
34
35
36
37
3C
3D
3F
40
4A
48
4C
40
,E
4F
50
5A
56
5C
50
5E
SF
SF
60
61
68
6C
60
6E
6F
60
61
6B
6C
60
6E
6F
Control
Character
Graphics
Character
NUL
SOH
STX
ETX
PF
HT
LC
DEL
SMM
VT
FF
CR
SO
51
OLE
OCI
OC2
OC3
RES
NL
BS
IL
CAN
EM
CC
IFS
IGS
IRS
IUS (ITS)
OS
SOS
FS
8YP
LF
EOS/ETS
PRE/ESC
SM
ENO
BEL
SYN
PN
RS
UC
EDT
DC.
NAK
SUB
SP
¢
<
I
+
I
&
,
~
}
~
I
%
>
7
EBCDIC
PDF
8/360
8/370
Line
Cod.
Cod.
Cod.
7A
7B
7C
70
7E
7F
81
B2
83
8,
85
86
87
88
89
91
92
93
9,
95
96
97
98
99
A2
A3
A4
A5
A6
A7
A8
A9
Cl
C2
C3
C.
CS
C6
C7
C8
C9
01
02
03
D.
05
06
07
08
09
E2
E3
E4
E5
E6
E7
E8
E9
FO
F1
F2
F3
F.
F5
F6
F7
F8
F9
Control
Character
Graphics
Character
7A
7B
7C
70
7E
7'
61
82
83
84
85
86
87
88
89
91
92
93
94
95
96
5
A
M
E
A
S
P
0
F
C
0
0
E
#
'!'
=
,"
,b
.,
d
f
h
I
j
k
I
m
,
0
97
P
98
99
A2
A3
A4
A5
A6
A7
A8
A9
Cl
C2
C3
C4
C5
C6
C7
CB
C9
01
02
03
q
D.
05
06
07
08
09
E2
E3
E.
E5
E6
E7
EB
E9
FO
F1
F2
F3
'4
F5
F6
F7
F6
F9
line Character Codes
,
,
t
,"
,w
,y
A
8
C
0
E
F
G
H
I
J
K
L
M
N
0
P
0
R
S
T
U
V
W
X
Y
Z
0
1
2
3
4
5
6
7
8
9
269
ITA2 Character Code
SI360
PDF
Cod.
.
smo
Code
Une
Code
ITA2
Co.....
.........
20
81
Cl
(101
10
08
[M]
(181
18
IF
IF
04
04
05
05
40
40
04
[84]
SP
SP
A2
E2
06
06
89
CO
(141
14
(OCI
ID
DB
A4
E4
03
08
08
08
09
84
09
C4
OA
OA
99
DO
08
91
Dl
01
01
02
o'
03
03
07
OB
OC
OC
DO
CO
25
DO
OD
10
.s
D6
M
C6
83
OD
OE
OE
ca
OF
92
D2
OF
10
A3
E3
10
A9
11
11
E.
12
93
D3
12
13
A6
E6
13
14
B8
14
C8
lS
AB
15
E8
16
97
16
D7
17
98
17
D8
{}-In only.
()-Outonly.
(011
01
(11)
11
(09)
09
(191
19
(05)
05
(16)
10
(OD)
OD
(lD)
lD
E
E
A
A
S
S
I
I
U
U
OC
(1C]
IC
1021
O'
[82]
(021
(121
12
(OAI
OA
(lAI
lA
(061
06
(181
16
(OEI
OE
(lEI
lE
Graphics
a.racblr
CR
CR
CR
CR
D
D
R
R
J
J
N
N
F
F
C
C
K
K
T
T
Z
Z
l
l
W
W
H
H
y
y
P
P
a
a
ITA2
SI360
PDF
Cod.
8/370
Cod.
18
18
19
19
lA
lA
lB
18
lC
lC
lD
10
lE
lE
lF
lF
lF
as
D6
B'
C2
87
C7
.6
36
94
D4
A7
E7
A5
E6
00
08
07
1F
17
lF
3'
37
1F
Uno
Code
(031
03
38
OFI
3F
F3
90
60
98
8S
94
8C
9C
9.
96
98
7D
F8
F7
.D
F4
2A
2F
6B
7A
4D
F5
4E
6D
F2
F6
FO
Fl
F9
6F
98
36
DC
4B
61
7E
06
86
87
89
SA
BB
88
8C
8E
8F
90
91
92
93
96
96
97
9D
9E
9F
(lFI
FIGS
FIGS
M
M
X
X
V
V
LTRS
LTRS
LTRS
LTRS
LTRS
LTRS
LTRS
LTRS
3
8
7
WRU
SA
(1AI
19AI
Chlr.cter
0
0
G
G
DB
(1BI
18
(071
07
(171
17
(OFI
OF
(lFI
lF
(1FI
I1FI
(1FI
(1FI
G.......
8
B
13
(OBI
83
lF
Ch...cter
U31
81
1F
Conttal
4
BELL
BELL
86
8E
9E
81
91
(
5
+
89
)
99
95
2
6
0
1
9
7
SO
9D
83
93
[98]
(871
97
8F
[9F]
FIGS
LTRS
.i
~
..
270
3704 and 3705 Program Reference Handbook
KATAKANA ChanIcter Code
01
02
04
07
08
sma
Code
BE
20
10
70
83
08
so
00
DE
10
13
19
lA
lC
IF
14
24
9F
SA
AD
94
36
06
20
23
98
92
2.
28
8E
93
A6
9E
36
29
2A
2C
2F
31
05
AE
32
34
86
89
37
AF
A9
B7
38
3B
3D
3D
3E
3E
40
40
43
45
17
32
OB
27
OB
40
4A
A2
91
BD
A6
9B
4C
34
4F
51
52
54
lA
9A
95
BC
6B
5B
5D
6E
5E
61
B2
84
67
9D
16
03
26
A4
A7
AC
97
46
4B
Uno
Code
A3
AA
88
86
68
64
6B
60
60
BE
70
73
76
76
78
79
82
a..racter
""
.
68
38
04
62
62
RSTP
HT
,
•"t
0
f
?
;
,[ 1'" In only. (1- Out only.
*Two character sequence.
"
,
?
3
I
1
CR/LF
37
4F
t
0
CR/Lf
LF
(37)
,,•
SP
15BI
67
8B
80
8E
90
.3
VT'
58
67
Ol
PRE
VT"
8KSP
E08
EOB
BA
01
88
l'
50
99
7
IDLE
IDLE
PN
PF
90
84
87
",
'"
(19)
(79)
45
2.
15
00
60
3B
07
82
1
29
(3D)
3D
43
23
13
73
OB
6B
0
'J
46
26
01
61
51
31
4.
?
,
32
(OU
•
7A
7C
7F
7F
81
T
UC
LC
02
16
78
OE
6E
6E
15E)
(3E)
3E
Code
,
4C
2C
4A
2A
lA
7A
PDF
Cha......
RES
BYP
64
lC
7C
Ol'llphics
1
?
08
OD
16
26
81
8F
.....,..
KATAKANA
SI31IO
PDF
Code
7
SOA
"v
..
••
9A
9C
9F
AD
A3
A5
A6
A9
AA
AC
AF
Bl
B2
B4
B7
BB
BA
BB
BD
BD
BE
CO
C3
C5
C6
C9
CA
01
02
04
DB
DB
DD
El
E2
E4
E7
E8
EB
ED
EE
FO
F3
F6
F6
F9
FC
FF
SI31IO
sma
Code
8C
37
07
OF
80
8F
F8
C8
F4
C4
14
24
F2
C2
OB
E6
36
OB
Fl
Cl
09
E9
06
E5
35
O.
03
E3
BB
4B
F7
E7
C7
17
26
27
40
6C
08
EB
D4
E4
02
E2
FO
F6
C6
16
01
6B
F9
,.
C9
F5
C6
26
F3
C3
A6
6B
07
37
07
KATAKANA
L1..
Code
2F
IF
7F
(7FI
CO
AO
eo.....
"'-,
......G..phIcs
EaT
DEL
PAD
;
90
FO
88
E8
(08]
(88]
8
H
4
0
RES
8YP
2
84
E4
S
co
AC
(OC]
(FC]
a
W
UC
LC
82
E2
02
82
CA
AA
(SA]
[FAJ
C6
A6
96
F6
BE
AE
EE
IDEI
IBDI
IBE]
1811
El
01
Bl
C.
A9
C6
A.
95
80
ED
IDD
C3
1
A
R
Z
N
V
RSTP
HT
L
T
0
7
X
G
IDLE
EOB
PRE
SP
.a
Y
M
U
K
S
0
6
F
8KSP
~
A3
93
F3
8B
E8
lOBI
IBB]
87
E7
07
B7
CF
19F]
IFFI
1
9
1
6
E
CR/LF
LF
3
C
EaT
DEL
"P
"
Line Character Codes
271
Data Interchange (TWX) Character Code 1
moo
PDF
Code
80
80
$/370
Code
36
84
85
87
89
8A
SA
8B
8e
80
80
80
8E
8F
38
24
37
20
2F
OS
IS
25
DB
DC
03
OD
26
DE
OF
92
34
B4
04
'13'
AD
AI
A2
A3
A4
AS
A6
A7
AB
A9
AA
AB
Ae
AD
AE
AF
AF
BO
81
B2
B3
B.
85
B6
B7
B8
B9
BA
BB
Be
BD
BE
BF
CO
el
el
e2
3e
40
SA
7F
7B
SB
6C
50
70
4D
SO
se
4E
6B
60
4B
61
El
FO
FI
F2
F3
F.
FS
F6
F7
F8
F9
7A
SE
.C
7E
6E
6F
7e
81
el
82
B4
., "
1WX
Uoe
Cod.
(011
(01)
(leI
120J
AI
EO
'91
(51)
51
01
31
(B1)
BI
(Bl)
70
FI
89
49
29
Control
Dlaracter
NULL
NULL
EOT
EOT
WRU
BELL
X-oo
TP Aux On
TPAuxOff
04
5P
44
C4
25
A4
6'
ES
IS
94
54
OS
3'
BS
75
F4
13A)
00
8e
'C
CC
2e
AD
60
EC
IC
90
50
DC
30
BO
7C
FO
02
(83)
83
(43)
!
"
#
$
%
~
I
l
+
-
i
I
0
I
2
3
4
5
6
7
8
9
<:
=
>
?
@
A
A
8
Uno
Cod.
C2
C3
C3
C2
B3
C3
43
C4
C4
B4
C4
85
os
86
C6
87
C8
e7
88
e8
e9
89
CA
CA
CB
CB
CC
ec
CD
CD
eE
CE
CF
CF
DO
DO
01
01
02
02
03
03
04
04
05
OS
06
06
07
07
08
08
09
D.
OA
DA
DB
DE
OF
Fe
FF
FF
FF
FF
I) = In only.
( I = Out only.
272
1WX
$/370
Code
c.
so
51
X-off
moo
Cod.
PDF
CS
es
C6
C6
e7
e7
HT
LF
LF
VT
FF
CR
eR
eR
C8
85
Graphics
Character
3704 and 3705 Program Reference Handbook
C8
C.
"
DI
.2
02
93
D3
94
04
95
05
96
06
97
07
98
08
99
09
A2
E2
A3
E3
A4
E4
AS
ES
A6
E6
A7
E7
A8
E8
A9
E9
79
4F
60
49
00
07
17
32
le21
C2
(23)
23
IA21
A2
1621
62
(E3)
E3
(13)
13
1921
92
(52)
52
ID31
03
1321
32
IB31
B3
(73)
73
(F2)
F2
lOBI
DB
18BI
8B
(4B)
4B
(CB)
eB
12AI
2A
(AB)
AB
(6Bl
6B
(EA)
EA
(lA)
lA
(9B)
9B
(58)
5B
OA
7A
F8
BA
(FE)
(FE)
IFEI
IFEI
eo",,"
Character
Graphics
a.. ......
B
e
C
0
0
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
0
0
P
P
a
a
R
R
5
5
T
T
U
U
V
V
W
W
X
X
y
Y
Z
Z
I
t
~
)
Rubout
Rubout
Rubout
Rubout
f
.
-
o ta IntarchanlJl (TWX) Character Code 3 tNCP # Only)
TWX
S/3ID
S/3ID
POF 11310 U..
G.......
POF SI370
Code
Code
36
38
84
84
24
37
20
2F
05
:
85
81
89
SA
8A
25
86
08
8C
DC
80
SO
80
80
8E
8F
91
03
00
DO
2B
OE
OF
11
92
94
94
04
98
18
AD
Al
A2
A3
A4
AS
AS
A1
AS
AS
AA
AB
AC
AD
AE
AF
AF
BO
Bl
B2
83
84
8S
86
87
88
89
BA
BB
BC
BD
BE
BF
CO
Cl
Cl
[)
,.
34
3C
40
SA
1F
18
58
8C
60
10
40
50
5C
4E
68
60
48
61
El
FO
Fl
F2
f3
F4
F5
f6
F1
F8
f.
7A
5E
4C
1E
6E
6F
7C
81
Cl
Code
101)
101)
I1C)
(201
Al
EO
91
161)
Sl
01
31
(81)
(81)
(Bl]
181)
10
Fl
-.
CIIo.-
Code
Code
NULL
NULL
C2
82
EOT
EOT
C3
C3
C4
C4
C2
CS
LF
LF
C5
C8
C8
C1
C1
81
C1
CO
88
C8
C9
C8
VT
ff
CR
CR
CR/EOT
CR
SO
C9
CA
51
X..n
TPAuxOn
TP_Off
C8
X..ff
[03) CTt.RX!
EOT
04
SI'
89
49
29
CA
CB
CB
CC
CC
85
I
44
C4
#
25
A4
84
E5
15
S
"~
I
54
t
05
+
94
34
8S
1S
F4
IlAl
00
8C
4C
CC
2C
AD
60
EC
lC
90
SO
DC
3D
BD
7C
FO
02
193)
83
IC2)
C2
123)
23
1A2)
A2
162)
62
IE3)
E3
CD
CO
CE
CE
CF
CF
DO
DO
01
01
02
02
03
03
D4
i
/
0
1
2
3
4
5
6
7
8
9
04
05
OS
06
06
07
01
DB
08
D9
DO
DA
DA
OS
.~
>
..,
A
A
DE
OF
OF
fC
FF
FF
FF
FF
C5
86
C6
89
C9
.,
01
92
02
93
03
94
04
9S
OS
98
06
91
01
98
08
99
D9
A2
E2
A3
E3
A4
E4
AS
ES
AS
E6
A7
E7
A8
E8
AO
E9
79
4F
16
6Il
49
00
-
.......... ..........
eo-I
143)
43
HT
BELL
""""
C2
83
C3
84
C4
85
WIIU
TWX
Uno
B
8
C
C
0
D
E
E
F
F
G
G
H
H
I
I
(13'
13
102)
92
152)
52
103)
03
132)
32
193)
83
(13)
13
IF2)
F2
108)
08
188)
8B
148)
48
ICB}
CB
12A)
2A
IA8}
AS
16B)
6B
lEA)
EA
I1A)
lA
19B)
98
158}
59
DA
7A
IF81
IFB)
8A
J
J
K
K
L
L
M
M
N
N
0
0
P
P
Q
Q
R
R
5
S
T
T
U
U
V
V
W
W
X
X
V
V
Z
Z
(
t
~
~
I
07
n
(FE)
(FE)
(FE)
Rubout
Rubout
RubO\lt
32
IFE)
Rubout
In only.
() '" Out only.
Line Character Codes
273
ZSC3 CharKter Code
PDF
Code
01
01
02
02
02
03
03
04
05
05
06
06
07
07
DB
DB
08
OS
09
09
OA
OA
08
08
OC
DC
00
00
OE
OE
OF
OF
10
10
11
11
12
12
13
13
14
"
15
15
16
16
17
SJ360
S/370
Code
85
C5
25
25
37
81
Cl
40
A2
E2
89
C9
A4
E4
03
00
00
15
84
C4
99
09
91
01
95
OS
.0
C6
S3
C3
92
02
A3
E3
A9
E.
93
03
AS
EO
88
ea
AS
ES
97
07
98
08
17
[J= In only.
(J = Out only.
274
U""
Code
ZSC3
Control
Character
(lO)
10
(08)
188J
11FJ
LF
LF
LF
(lSl
IS
04
A
A
5P
(14)
5
5
14
(OC)
)
OC
I
(lC)
lC
(02)
02
\821
(02)
Graphics
Character
E
E
U
U
CR
CR
CR
CR
(12)
12
(OA)
0
0
OA
R
J
J
(lA)
lA
\061
06
(16)
lS
(OE)
DE
(lEI
lE
(01)
01
111)
11
(091
09
(19)
19
105)
05
(15)
15
(00)
00
(10)
10
R
N
N
F
F
C
C
PDF
Cod.
18
IS
,.
19
lA
lA
18
lB
lC
lC
10
10
lE
lE
lF
lF
lF
lF
lF
lF
lF
81
83
84
85
85
85
S7
89
SA
K
K
ss
se
T
T
Z
Z
L
L
W
W
H
H
y
SO
8E
8F
90
9'
93
94
95
96
96
99
Y
9A
P
P
98
a
a
ge
9E
9F
S/360
S/370
Cod.
.0
06
.2
C2
.7
C7
26
3B
94
04
A7
E7
AS
E5
00
06
07
17
3'
38
3F
60
4E
40
70
2A
2F
Fl
20
61
F'
6B
F4
F8
40
48
50
F3
OF
F5
F9
7A
FS
FO
3B
F7
7E
06
3704 and 3705 Program Reference Handbook
ZSC3
line
Code
eo""..
Character
03
(13)
13
lOS)
08
18
18
•
G
G
(07)
M
M
X
X
V
V
(17)
(IF)
90
9S
[1141
94
(80)
8C
9C
92
SA
9A
86
96
8E
9E
81
89
99
85
9S
80
83
93
S8
[9B1
87
8F
[9F1
Character
FIGS
FIGS
07
17
(OF)
OF
OF)
lF
I1F)
OF)
(IF)
OF)
Graphics
0
0
B
103)
tTRS
tTRS
lTRS
lTRS
lTRS
lTRS
lTRS
-
+
SP
Bell
Bell
1
WRU
I
2
:.
S
(
j
3
?
5
9
6
0
FIGS
7
=
.tTRS
•
('
::,,/
1030
Controller
..
©
.
.
®
..
F
@
_TEXT
•
(Y)
©
.
®
(
Polling
t
1030
..
@
End of Block
Positive Message Received
End of Transmission (Reset)
m
x
3
if
So
~
~"
'!l0-
Controller
@
.
A
.
©B
»
~
'"
®
~
6
@
00-
i.
.g
5
.
...
..0•
Polling
TEXT
®
LRC
©
Reset Terminals
Terminal Address
Component Select Code for Keyboard
Negative Reply
Reset, Resume Polling or Addressing
Terminal Address
Component Select Code for Reader 1
Reader Ready to start message
Message
End of Block
Check Character Generated by the 1050
Positive Message Received (No data check).
End of Transmission
@
Reset Terminals
Indicates message for a printer
Terminal Address
Conditions 1031 to answer
Ready to receive
End of Address (Text Model
Message (Data characters must be separated by
three PAD characters. PAD characters keep
®
1050
:
TEXT
1000
"0
1030
1
Ready to send message
Message
(
Addressing
Controller
~B
Reset Terminals
Terminal Address
Negative Reply (Not Ready)
Terminal Address
€"
©
Controller
©A
..
@
..
@
.
1050
.
®
LRC
•
®
LRC
•
©
Addressing
@
•
(2)
"
~
m
t\
..,
3
=-So
..,
g,
.....
S"
~
~
0-
Reset Terminals
Terminal Address
Component Select Code for Printer 1
(2)
TEXT
TEXT
line at Mark levell.
End of Block
Positive Message Received
End of Transmission (Reset)
f.
0
Terminal ready to receive
End of Address
Message
End of Block
Check Character Generated by the controller
Negative Message Received (detected a data check).
Message Repeated (Program Controlled)
End of Block
Check Character Generated by the controller
Positive Message Received (No data check).
End of Transmission (Reset)
!::i
~
Controller
~
Dial TTY
a
!::i
fii
,g""
~
"it
-
TTY
_ID,ACK
Text
------..
XOFF",WRU _
_ID,ACK
Text
~
XOFF*,EOT -----...
Controller dials TTY to perform WRU function.
TTY gives identification code and go-ahead signal.
(Always 20 characters.)
Message sent.
Go-ahead signal to TTY.
TTY identification and go-ahead
Message sent.
Transmission is finished: go on-hook.
~
Text
-----------+-
XOFF"
-
Tape
Controller
if
~
----ID,ACK
Keyboard Attended
Controller dials TTY to perform WRU function.
Identification code and go-ahead signal.
(Always 20 characters.)
Message sent.
End of text.
Paper Tape
g
g,
Dial TTY
Dial Tape
Paper-tape
Punch
..
{
ID,ACK
Text
XOFF*,EOT
•
..
Dial Tape
II'
..
ID,ACK
..
Text
XDFF*
XON
Paper-tape
Reader
Controller dials tape terminal.
Terminal identification and go-ahead to controller.
Message sent.
End of text, end of transmission.
Controller dials tape terminal.
Terminal identification and go-ahead to controller.
Turns on tape transmitter.
{
Message sent.
End of text.
XDFF* ,EDT ---~.~
End of text, end of transmission.
*May be followed by a maximum of three delete characters.
"f\
1\
~1F",
«
(
(
,".
(
(
BSC Terminals
Polling
Controller
Terminal
EOT
Polling
Addressing
Controller
EOT
Controller resets terminals.
}--
Controller sends polling characters,
then turns the line around.
characters,
ENO
Text
Addressing
m
x
"~
S,
-c
g,
~.
~
Co
~
Co
~
~.
~
~
characters,
__---ACKO
Terminal sends message.
Controller resets terminals.
Controller addresses the terminal,
then turns the line around.
ENO
Text
3
Terminal
•
Terminal ready to receive.
Controller sends message.
SeCtion 16: MDR Record Formats
The network control program (NCP) and the host access method provide records as input
to the Miscellaneous Data Racorder (MDR).
The aceoss method recognize. NCPl and NCP2 MDR record. by the system response
(X'OA') in the BTU.
NCP# MOR records are identified by the second two bytes of the request/response unit
(RU) in tho FIDl PIU. For MDR records, RU byte 1 = X'03' and RU byte 2 = X'Sl'.
Bytes 3 and 4 of tho RU oontain the network address of tho failing unit, and byte 5 is the
beginning of tho MDR record.
The text portion of tho MDR records consists of a field of up to 35 byte•. The third byte
of the field is the recording mode byte, which is used to differentiate among the types of
NCP MOR records. The fourth byte, the record 10 byte. is always set to X'OS'. indicating
to the host that this i•• 3704 or 3705 MOR record.
In some of the records there is a field labeled Abend/Malfunction Code. If the record
represents an error that caused the NCP to abend, this field contains the appropriate
abend code. In this instance the MDR record never reaches the host, but remains in the
check record pool (CRP). If, however, the error condition was one that might have
caused an abend but was recovered from, the record is transferred to the host, and the
abend code is treated as a malfunction code. When the error condition is one that could
not cause an abend, this field is set to zero.
When the MDR record ·is in the CRP, two CAP control bytes precede each record. Aefer
"to the data area layout for more information abOut the CRP.
MOR Record Format.
2Bl
~
!:l
The records for permanent line errors and line statistics are created by the' iine error ree,order routine (C;XDILER).
Record Format for Permanent Line Errors
~I
~
!:l
~
=l'
.8
2(2)
Recording
0(0)
Line Interface
Address
5(5)
4(4)
6(6)
BTU Command
BTU Modifier
(BCHCMD)"
(BCHMOD)"
8(8)
BTU Flags
(BCHSFLAG)"
Record
ID-X'OS'
lOB Modifiers
(lOBCMODS)"
lOB Immediate
Control
Command
(lOBIMCTL)"
14(E)
12(C)
15(F)
lOB
~
g
18(12)
17(11)
lOB
108 Initial
Error Status
Extended
Status
lOB Status
(lOBSTAT)"
Initial
Error
(lOBERST)*
Extended
(IOBEXTST)*
if
.,.5.
~
3(3)
11(B)
9(9)
lOB Command
(lOBCMAND)"
~
"
~
***
Mode=X'OO'
1/0 Counter
(DVBSDRT)"
Status
(IOBEREST)*
20(14)
Temporary
Error Counter
21(15)
22(16)
2740 Graphic
Response Syte**
24(18)
Device Features
Device Type
(DVBTYPE)*
(DVBSDRE)*
(DVBFEAT1)*
I
(DVBFEAT2)*
*Indicates the control block field from which this MDA record field is loaded. (See "Data Area Layouts" section for field definitions.)
**2740 graphic response byte is ~eroed if not applicable.
*** Applies to SSC/55 devices as well as lines.
"
.
.'
.".,.
(:.
«-
~.
(
(
2(2)
0(0)
Rocord Format for Station Statlsti""
C)
Line Interface
Address
Recording
Mod...X'OI'
1 3 (3)Record
IO=X'05'
4(4)
Hex Zeros
18(12)
110 Counter
(OVBSORT)*
20(14)
24(18)
22(16)
Temporary
Error
Counter
Device
Features
(reserved if SOLC)
(OVBSORE)*
-------
-------
or SeB station
or SCB total
type (SCBTVPE)
ifSOLC.
retry count
(SCBTRTCT)
ifSOLC.
-
Device
Type
(OVBTVPE)*
(OVBFEAT1)*
I
(OVBFEAT2)*
• Indicates the control block field from which the MDR record field is loaded. (See "Data Area Layouts" section for field definitions),
is
"
["
."
~
~
~
------------or SCB trans-
mission counter
(SCBTCNT)
ifSOLC.
i
~
The records on this and the following pages are created by revel 1 error propessing routines. They are preparitd fo~ transfer to the host by the error record transfer routine (CXOI ERT).
Record Format for Type 1 Channel Adapter Errors
[
1 0(01
!:J
51
=!'
~
\4(4)
\'
\
AbehdiMalfunction
Code
2(21
1 Recording
Mode=X'10'
13(31
Record
'ID=X'05'
6(61
Error Record
Type=~'84'
(Type lCA)
\
'j
"
fif
t
Hex Zeros
16(1'0)
External Register
X'6:7'
Type 1 CA Controls
J
".
T
,~,
"
/""''''''.
,"'t"
, ,
{
(
(:'
(
Record Format for Type 2 Channel Adapter Errors
Abend/Malfunction
Code
4(4)
5(5)
Error Record
Lost Check
Type*
Record Count
ICRPLCRCT)
121C)
8(8)
6(6)
External Register
X'50'
INCWAR
External Register
X'56'
Check Register
X'58'
Bus Out Diagnostic
External Register
X'5C'
Command Register
'Type 2 CA 1=X'04'
Type 2 CA 2=X'02'
**With a 3705 over 64K, the first two bits of the address are the low-order two bits of the previous field.
;;:
C
:0
:0
[
"
o
~
!li
External Register
X'52'
Control Word
Byte Count
18(12)
External Register
22(16)
Hex Zeros
Record
ID=X'05'
lOlA)
X'51' ,
OUTCWAR
Register
20(14)
Aecording
Mode=X'10'
External Register
16(10)
141E)
External Register
X'55'
Control Register
\3(3)
2(2)
0(0)
External Register
X'59'
Cycle Steal
Address Register**
~
Record Format for Type 1 Communication Scanner Errors
0(0)
'"~
,
Cl.
!:l
lJl
I
4(4)
Error Record
Type = X'CO'
15(5)
Lost Check
Record Count
(Type 1 Scanner)
13(3)
Record
ID=X'05'
External Register
External Register
X'44'
X'74'
Status Register
Lagging Address Register
16(10)
12(C)
Interrupted Program Level's
Instruction Address Register
(Register 0)
~
~
1 6 (6)
Recording
Mode=X'll'
8(8)
ICRPLCRCT)
~
...
~
1 2 (2)
Abend/Malfunction
Code
m
External Register X'79'
Program Level
Interrupted
_J
Record Format for Type 2 Communication Scanner Errors
Cl.
0(0)
g-
/2( 2 )
Abend/Malfunction
Code
~
4(4)
Error Record
Type'"
1 5 (5)Lost Check
Record Count
(CRPLCRCT)
616
1
External Register
X'43'
Check Register 1
Record
ID=X'05'
External Register
X'74'
Lagging Address Register
16(10)
Interrupted Program Level's
Instruction Address Register
(Register 0)
External Register X'79'
Program Level
Interrupted
2 Scanner-l=X'40'
2Scanner-2:::X'20'
2 Scanner-3=X'10'
2 Scanner-4=X'08'
"fI---.
/313)
8(8)
)
121C)
"'Type
Type
Type
Type
Recording
Mode=X'11'
..
"
I
'.,m-'",
,
,
t
£
t
t
Record Format for Type 3 Communication Scanner Errors
0(0)
4(4)
Error Record
Tvpe*
1
515 Lost Check
}
Record Count
ICRPLCRCT}
1
616
}
121C)
*Type 3 Scanner-l=X'41'
Type 3 Scanner-2=X'21,
Type 3 Scanner-30=X'11'
Type 3 Scanner-4=X'09'
s:
o
:XI
i?i'
8
a.
."
o
3
it
~
Abend/Malfunction
12(2 )
Code
Recording
Mode=X'll'
13(3)Record
IO=X'05'
SIS}
External Register
External Register
X'43'
Check Register 1
X74'
Lagging Address Register
16110}
Interrupted Program Level's
External Register X'79'
Instruction Address Register
Program Level
(Register 0)
Interrupted
11S112}
External Register
X'42'
Check Register 0
~
Record Format for Input/Output Instruction Exceptions
0101
!:l
Abend/Malfunction
~
m
a.
~
I
Code
4141
13131
Record
ID=X'05'
BIBI
Error Record
Type=X'20'
Lost Check
5151Record Count
ICRPLCRCTI
1
6161
External Register
Instruction on
which the error
X'74'
Lagging Address Register
occurred.
1
121CI
161101
I nterrupted Program Level's
~
External Register
X'79'
Program Level
Instruction Address Register
(Register 0)
:0
!a.
Interrupted
~
~
~I
2121
Recording
Mode=X'12'
Record Format for Unresolved Program Level 1 Interrupt Requests (Type 2/3 scanner)
g
0101
Abend/Malfunction
""
4141
5151
6161
2121
Recording
Mode=X'13'
Code
Record
ID=X'05'
8181
Error Record
Lost Check
External Register
External Register
Type=*
Record Count
X'76'
Adapter Interrupt
X'74'
Lagging Address Register
ICRPLCRCTI
13131
Requests Group 1
161101
121CI
External Register
X'79'
Program Level
Interrupted
L.
*Type 2 scanner=X'01'
Type 3 scanner=X'03'
181121
Interrupted Program Level's
Instruction Address .Register
(Register 0)
..
T
External Register
X'7E'
CCU Interrupt
Requests Group 1
/""
,",'.
I.· ;
~
(
(
c:
(
1 2 (21 Recording
1 3 (31Record
(
Record Format for Invalid Instruction Operation Codes
0(01
Abend/Malfunction
Code
4(41
Error Record
Type=X'OS'
1 5 (51 Lost Check
1 6 (61
Record cou~~
(CRPLCRCT
S(SI
Instruction on which
error occurred.
12(CI
External Register X'14'
Lagging Address Register
16(101
Interrupted Program Level's
Instruction Address Register
External Register
X'7S' Program Level
(Register 0)
Interrupted
I
Record Format for Unresolved Program Level 3 Interrupt Requests
This record is created by the level 3 Touter (CXCCRTR).
0(01
Abend/Malfunction
Code
s:
o
:c
:c
8a.
."
o
3
or
ffi
4(41
Error Record
Type=X'03'
ID=X'05'
Mode=X'12'
\5(51Lost Check
\6(61
1 2 (21
Recording
Mode=X'13'
1
3 (31
Record
ID=X'05'
S(SI
Record Count
External Register X'77'
Adapter Interrupt
(CRPLCRCTI
Requests Group 2
1 1S (121
Hex Zeros
External Register X'7F'
CCU Interrupt
Requests Group 2
15
o Record Format for Permanent SDLe Errors
0(0)
!:l
.
2(2)
Recording mode.
Line interface address
~
5.
~
4(4)
- 6(6)
SGB Link scheduling flag.
(SCBSSCF)
I
~
?;
~
£
iii'
5.
go
~
3(3)
Record 10.
X'OS'
X'03'=Station error
X'02'=Link error
- 7(7)
Reserved
Output control
flag. (SCBOCF)
8(8)
LXB command.
(LXBCMANO)
11(B)
9(9)
LXB
LXB modifiers
(LXBCMOOS)
Immediate
control cmd.
(LXBIMCTL)
12(C)
lS(F)
. 14(E)
LXB status.
(LXBSTAT)
LX BSTAT
LXBSTATC
• 21 (15)
20(14)
SGB Total retry
Received BLU
count.
command field.
(SCBTRTCT)
(LXBRBLUC)
28(lC)
SGB receive
• 29(101
LXB extended
status.
(LXBEXTST)
22(16)
(LXBERST)
LXBERST
LXBHSTAT
24(18)
Reserved.
SeB station
tYpe.
(SCBTYPE)
• 30(lE)
count.
SCB send
count.
(SCBNR)
(Bits 4,5,6)
(SCBNS)
(Bits 4,5,6)
17(11)
LXB error status.
eca control
and type flags.
(CCBCTL)
32(20)
Command field
received from
18(12)
SCB transmission
LXB initial error
extended status.
(LXBEREST)
secondary station.
(SCBTCNT)
-. 26(lA)
* 27(lB)
- 25(19)
Transmit BLU
SCB current
SCP pass
command field
outstanding count.
count.
(CCBCFLD)
(SCBCOC)
(SCBPCNT)
_.-
--
•• * 34(22)
33(21)
N(R) and N(S)
Command reject
received from
reason:
secondary station.
X'08'=lnvalid N(R).
X'Q4'=Frame too
long.
X'02'=Oata received
inSor NS
format.
X'Ol'=lnvalid
command.
SECCFR
This field is present only if this record is for a station (for a link, field contains all zerosJ.
**This field stored only for duplex" links.
***This field stored only if Command Reject was the cause of the MDR record being formatted.
'l.,'
T
-
counter.
/""'~
'1If
-
Section 16. EP Storage Maps
EP (oldba.. )
Addres.
(hex)
I
WI
000-500
680
888
6FO
6F6
700
700
702
710
Description
Destroyed by dump.
Direct addressables for Ie and STC instructions.
10 for CYANUC module.
Pseudo BCB. (Type 1 scanner only)
Character service routine address. (Type 1 scanner only)
Direct addressables for lH and 5TH instructions.
Pointer to c:;h~nnel v.ector table .. {The c.ontents of this location are destroyed
if a dump is taken on a 3705 with dual RCS.·
IPL register save a"rea.
Queue control flags:
X'40' - Stacked status serviCe.
X'20' - Sense'service.
X'10' - TID sequence.
.,;
I
711
712
714
718
71C
720
724
728
72C
72E
730
780
780
7AO
70C
7EO
800
840
...
...
...
...
...
X'QS' - Do not dequeue TIC.
Active command count. (Equals the number of lines active.)
aC8 table. (Address of last CCB using TID.)
Priority-data-service-out queue (POSOO).
Data-senlice-out queue (OSOQ).
Data-service-in queue (OSlO).
Status-out queue (SOQ).
Sense-out queue (SNOO).
Stacked-status queue (SSQ).
Address pointer to the first character serviced (CSPQ1).
Address pointer to last character serviced (CSPQ2).
SVCO
Group 0 register save area for RDS.
Direct addressables for Land ST instructions.
Group 0 register save area for level 1.
Pointer to last entry in error log.
Error log.
Line vector table (Type 1 scanner)
Line vector table. (Type 2 scanner)
Channel vector table. (Begins on the first doubleword boundary following
the line vector table.)
Character control block. (Begins on the first doubleword boundary
following the channel vector table).
Line Group Table. (Begins on the first doubleword boundary following the
last character control block.)
Trace table pointers. (Immediately follows the EP load module.)
Trace table. (Immediately follows the trace table pointers.)
EP Storage Map
291
EP (new base)
AddnIo
(hex)
Description
000-500 Destroyed by dump.
Direct addros..bl.s for IC and src instructions.
680
10 for CYANUC module.
68B
OIannel adapter select flag of IPL channel.
697
Levell ERP oount.
69B
Module 10 (CYENUC).
69A
Version and modification level.
6A2
Pseudo BCB.6FO
Character service routine address. (Type 1 scanner only).
6F6
700
Direct addressables for LH and STH instructions.
700
Pointer to channel vector table. (The contants of this location are destroyed
if a dump is taken on a 3705 with dual ROS.
IPL register save area.
702
710
Pointer to CHCB for the first channel adapter 4.
Pointer to CHCB for the second channel adapter 4.
712
Pointer to the next CHVT to be checked by the timer routine.
718
Address of the CHCB initialized for panel USB.
71A
71C
Address of the error log.
71E
Contents of ABAft when a level 1 interrupt occurs.
Contents of Input X'79' when a level 1 interrupt occurs. (Indicates an
720
interrupted level.)
722
Contents of Input X'7&' when a level 1 interrupt occurs. (Indicates an
adapter request.)
Log·trace indicator: X'Dl' =Store log entry at byte displacements 6 and 7
724
of the trace entry.
726
72C
72E
730
760
760
7AO
840
...
...
...
...
...
Unhang subchannel switch: X'01' = Action is in progress to unhang the
subchannels.
Addre.. pointar to the first character serviced (CSP01).
Address pointar to last character serviced (CSPQ2).
SVCO
Group 0 register save area for ROS.
Direct addressables for Land ST instructions.
Group oregister save area for level 1.
Line vector tabl. (Type 2 scanner).
Channel Control Block (CHCB). (Begins on the first doubleword boundary
following the line vector table.)
Character oontrol block. (Begins on the first doubleword boundary
following the channel vector table).
Line Group Tabhl. (Begin. on the first doublewrod boundary following the
last character oontrol block.)
Trace table pointe... (Immediately follows the EP load module.)
Trace table. (Immediately follows the trace table pointers.)
(/
292
3704 and 3706 Program Reference Handbook
,~
(,
(
External
Register X'41'
0
Bit Positions
0
t
Byte 0
3
4
0
0
0
X
X
X
X
X
()
Byte 1
3
4
7
X
0
0
Field
(
I-"
~
Address Bits
!
Interface
X'O'· X'F'
Type 1 Scanner Interface Address Bits
~
~
I.
'""
I
~
~.
oil
tl
'"
~
External
~
Bit Positions
.
i1
~
c.
~
Register X'40'
I
U
,
OO=Scanner·l
01=;$canner-2
10=Scanner-3
11=Scanner4
~
;."
;,;
~
"
,
I
Field
ijl
4'
~c.
U
Address Bits
.g
g
I
OOO=Not Used
00l=Not Used
Interface
X'O'· X'F'
010=LIB pas 1
011=LlB pas 2
100=LlB pas 3
101=LlB pas 4
110=LlB pas 5'
111=LlB pas 6'
*Invalid for Type 2 Scanner-l
Note: Interface addressing in the 3704 with a Type 2 Scanner follows the same addressing scheme as a 3705
Type 2 Scanner-l, LIB position 1. Interface address bits 4,5,6,7, and 8 specify lines O-F in LIB Type Al.
However, addresses 1,3, C, 0, E, and F are reserved. Ifthe scanner supports two LIas (LIB positions 1 and
2), all interface addresses are used.
Type 2 &anner Interface Address Bits
l
/."..,
'T',
/~,
",~
, ,
c:
t.
(c
t
INTERFACE ADDRESS ASSIGNMENTS (HEX)
S/L
(HEX)
•
Type 1
LIB position 1
Scanner
2
3
4
Type 2/3
Scanner-l
LIB position 1
2
3
4'
00
01
02
03
1->
o
I I I I I I I I I I I I I I I
1
2
3
-
-
~
~
f
~.
'"
1ll
LIB position 1
2
3
4
5'
6'
Storage Address ASsignments (part 1 of 2)
5
6
7
rr
20 930
30 840
850 860
900 910 920
940 950
960 870
970
800
AOO 1810
Al0 A20 A30 1A40 1A50 1A60 1A70
BOO Bl0 B20 830 840 B50 B60 B70
9
8
A
B
C
D
r r
90 8AO
BO 9CO 9DO
880
8DO
980 990
9AO 9BO
1A80 A90 1AAO ABO I ACO
BCO 1ADO
BBO B90 BAO BBO BCO BDO
STORAGE ADDRESSES (HEX)
E
F
r
8FO
8EO 9FO
9EO
1AEO 1AFO
BEO BFO
rr r
02
03
04
05
-
4
846 868
848 86A 86C 84E
850 852
54 876
6 878
858 a7A
5A 87C
85C a7E
85E
860 862
864 866
86E 870
872 874
840 882
T44
84A I 88C
84C 188E 1890 1892 894 896 1898 89A 1a9C 189E
880
864 1886 1888 188A
8AO 8A2 8A4 8A6 8A8 8AA 8AC 8AE 8BO 862 8B4 8B6 868 8SA 8BC 8BE
OA
OB
OC
OD
OE
OF
-
940
960
980
9AO
9CO
9EO
3705 EXPANSION MODULE 1
Type 2/3
Scanner-2
4
STORAGE ADDRESSES (HEX)"
STORAGE ADDRESSES (HEX)
-
-
942
962
982
9A2
9C2
9E2.
944
964
984
9A4
9C4
9E4
946
986
986
9A6
9C6
9E6
948
968
988
9A8
9C8
9E8
94A
96A
98A
9AA
9CA
9EA
94C
96C
98C
9AC
9CC
9EC
94E
96E
98E
9Ae
9CE
9EE
960
970
990
9BO
9DO
9FO
962
972
992
9B2
9D2
9F2
954
974
994
9B4
9D4
9F4
956
976
996
9B6
9D6
9F6
958
978
998
9B8
9D8
9F8
95A
97A
99A
9BA
9DA
9FA
95C
97C
99C
9BC
9DC
9FC
95E
97E
99E
9BE
9DE
9FE
~
INTERFACE ADD.RESS ASSIGNMENTS (HEX)
S/L
(HEX)
~
~
~
~
Type 2/3
Scanner·3
!II,
I
°111213141516171S
3705 EXPANSION MDDU LE 2
f'"
i
I'"
LIB position 1
2
3
4
5'
6'
12
13
14
15
16
17
-
A40
A60
ABO
AAO
ACO
AEO
A42
A62
A82
AA2
AC2
AE2
A44
A64
A84
AA4
AC4
AE4
A46
A66
AS6
AA6
AC6
AE6
lA
lB
lC
10
lE
IF
-
B40
BOO
BOO
BAO
BCO
BEO
B42
B62
B82
BA2
BC2
BE2
B44
B84
B84
BA4
BC4
BE4
B46
B66
8S6
8AS
BC6
BE6
3706 EXPANSION MODULE 3
Type 2/3
Scanner-4
LIB position 1
2
3
4
5'
S'
-_.
191AISICIDIEIF
STORAGE ADORESSES (HEX)
A4S
A6S
ABS
AAS
ACB
AE8
l~
A6A
ABA
AA
ACA
AEA
A6C
A8C
AAC
ACC
AEC
A4E
A6E
ABE
AAE
ACE
AEE
A50
A70
A90
ABO
ADO
AFO
A52
A72
A92
AB2
AD2
AF2
A54
A74
A94
AB4
AD4
AF4
A56
A76
A96
AB6
AD6
AF6
A58
A78
A9B
ABB
AD8
AF8
A5A
A7A
A9A
ABA
ADA
AFA
A5C
A7C
A9C
ABC
ADC
AFC
A6E
A7E
A9E
ABE
ADE
AFE
B54
B74
B94
BB4
BD4
8F4
S56
B76
B96
BB6
BD6
BFS
B58
B78
B98
BB8
BOB
BFS
B5A
87A
B9A
BBA
BOA
BFA
B5C
B7C
B9C
BSC
BDC
BFC
B5E
B7E
S9C
BBE
BDE
BFE
STORAGE ADDRESSES (HEX)
B48
B68
BS8
BA8
BCS
BE8
B4A
B6A
88A
BAA
BCA
SEA
B4C
B6C
8ac
BAC
BCC
BEE
B4E
B6E
BSE
BAE
BCE
BEE
B50
B70
890
BBO
BOO
BFO
B52
B72
B92
BB2
BD2
BF2
*Not used for wpe 3 scanner
**Storage addreSs X'6FO' is used for character service
Storage Addre.; Assignments (part 2 of2)
•
(
c4f
T
-
~t·
;1_~ __ '
U~n 18: Index to .NCP and EP Rafaranca Material
This index provides a pointer to NCP and EP reference material such as service aids,
diagnostic aids, debug information, etc. Items that are in this handbook have a page
number listed with their entry. If an item is located in another publication, an (X)
appears under that pMicular publication's key.
~
IBM 3705 Communications Controller, N9twork Control Program~ VtJrSion I.
PLM. SY30.JOO3.
IBM 3704 and 3705 Communications Control/",s. Network Control
ProgramNS. Version 2. PLM. SY30-3007.
B
C
IBM 3704 snd 3705 Co",municstions Control,.,.. Network Control PragramNS,
V......on 4, PLM, SY30-3013.
IBM 3705 Communications Contro/Jer, Emulation Program, PLM,
SY30-3001.
D
NCPfrCAM Network User's Guido. GC30-3009.
E
Guide to Using the IBM 3704 Communications Controller Control Panel.
GA27-3086.
Guide to Using the IBM 3705 Communications Controller Control Panel,
GA27-3067.
F
IBM 3704 and 3705 Communications Controllers, Network Control Program,
Generation and Utl/ities, Guide and Reference Manual, GC30-3000.
IBM 3704 and 3705 Communications Controllers, Network Control
Program/VS, Generation and Utilit;., Guide and Reference Manual,
(for OSNS TCAM Users), GC30-3007.
IBM 3704 and 3705 Communications Controllers, Network Control
Program/VS, Generation and Utilities, Guide and Reference Manusl (for
OSNS VTAM Users). GC30-300B.
G
IBM 3704 and 3705 Communications Controllers, Emulation Program,
Generation and Utilities, Guide and Reference Manual, GC30·3002.
H·
IBM 3704 snd 3705 Communications Controllor, Prlnelplss of OptH'Btion,
GCJO.3004.
Index to NCP and EP Refarence Material
297
KEY
ABC DE F G H
abend codes 253
addressing .
interface.
line/LiB. .
protect key.
storage . . . .
address trace (NCP) .
description. . .
implementation . .
pointers to trace table
X
X
X
X
XX
X X
5.
BHR . . . . . . .
definition . . . .
macros . . . . . .
bring·up test (see initial test)
BTU commands 203.
BTU responses 223
BTU trace . . . .
channel adapter trace
codes. . . . .
abend 253.
EP generation .
NCP generation
request 211.
response. . .
BTU 223.
system 223
commands . . .
BTU 203 . .
channel. . .
control . . . . . .
network lNCP#) 211.
SDLC (NCP#J 219
teleprocessing. . . .
EP 221 . . . .
NCP 203 . . . .
control blocks (see data area) .
data area . . . . . . .
layouts (see table of contents)
location. . . .
relationships 1.
diagnostic wrap (EP).
displays.
.
dump . . . .
EP.
XX
X X
X
X
X
X
X
X
X
X
XX
X X
X
X
X
X
X
X
X
X
NCP . • .
dynamic display
EP . . .
X
XX
NCP
X
error log (EP) .
error records .
MDR
281
sense/status.
EP . . .
X X
X
X X
NCP .
error recovery .
EP . . . .
X
NCP . • .
exception responses
external registers .
labels..
.
237 .
usage
format of storage.
EP . . .
231 .
NCP . .
ICW 243.
initial test
EP . . .
NCP • .
298
X
X
3704 and 3705 Program Reference Handbook
X X
X
X X
X
X X
X
X
X
X X
KEY
A B C 0 E F
instructions 233. . . . . .
interpretive command (see OlTT or OllT) .
line test (take·a-line) .
line trace .
functions
EP.
NCP
format
EP.
NCP
implementation
EP . . . .
NCP . . .
macro . . . . . .
block handler (NCP) .
EP generation. .
instructions. .
NCP generation .
supervisor (NCP) .
MOR 281 . .
messages and cO,des
abend 253.
EP generation .
NCP generation
response (BTU)
223.
system (BTU) 223.
241
modem leads
module ideOt1fication
EP . .
NCP . . . . . . .
network commands (NCP #) 211.
OLLTINCP#) 211 . .
execution . _ . _ .
interpretive commands.
OLLT . . .
EP execution . _ . _ .
interpretive commands (NCP).
NCP execution
panel. _ .
displays.
functions
operation
protect keys
registers.
input/output 237
general . .
request codes 211.
responses . . . .
BTU 223.
excepti9n 231 .
SOLC commands INCP#) 219.
sense bit settings .
EP.
NCP
service aids. . . .
abend codes 253.
address trace (NCP) .
BTU trace . . . .
channel adapter trace
dump . . . . . .
EP.
NCP
.
initial test (bring-up test)
EP..
.
NCP . . .
line trace . .
EP.
NCP 179.
GH
X
X
X
X X
X
X X
X
X
X
X X
X
X
X X
X
X X
X X
X
X
X
XX
X
X
X
X
X X
X X
X
X
X
X
X
X
X
X X
X
X
X
X X
X X
X
X
X
X
X
X
X X
X
X X
X
X
Index to NCP and EP Reference Material
299
KEY
ABC DE F
MOR
281
QLLT(NCP#)
OLTT
GH
X X
X
...
X
EP • . . .
NCP . . • . .
X X
take·a-line (see line test)
status bit settings.
EP • • . . .
NCP . . • .
storage keys . .
storage map (EP) •
X
X .X
X
switches, panel . .
take-a-Jine (see line test)
trace. . . . . .
address . . .
description.
X
.
.
XX
X X
implementation
pointers
5.
~annel adapter
description.
table 177.
EP and PEP.
X
.
description.
table 180.
X
line (NCP) . .
description.
179.
6.
translate tables 261
X X
table
pointers
. .
. . .
units of tran$fer (general data flow) .
EP. . . . • .
.
NCP . • • • • • • . • .
300
3704 and 3705 Program Reference Handbook
X
X X
X
..,
..,
FORMAT
Nom,
Imtructian
C, Z
3704
3705
Cycles
Cycles
0
I
2
31_
2
I
I
0
I
0
I
5
6
7
8
8
B,anch
BCl
Bronch
C latch
2
I
I
0
0
I
1
BZl
Broner on Z Latch
2
I
I
0
0
0
I
BCT
Branch on Cou",
3
I
I
0
I
I
I
I
BB
Branch on B,I
3
I
I
I
M
M
I
M
LRI
load Reg;He, Irnrr'tod ,:'t
3
I
I
0
0
0
0
ARI
Add Reg>.tel jmrrt'J:, k
3
I
0
0
I
0
SR I
Subtloct Rc'9j~tt"
3
I
I
0
I
0
0
3
I
I
0
I
I
0
3
I
I
I
0
0
0
0 ....
10
9
11
112
13
14
I
I
I
T
I
XRi
I,..., ...... ecijot ..
COlTpure Reg;;le'
ImmediOlt;
Exclu~i"e Or
Regi,t€, ImMediate
ORI
Or Registe,
3
I
I
I
0
I
0
NRI
And Regisle: !mrpediol/:
3
I
I
I
I
0
0
T'M
I
I
I
0
!mrn<,d:olt;"
R
N
!
)I
I
T
CRI
15
I
!
)I
I
Test Reg;;te, unoe, M(J,>k
3
I
I
LCR
load Chafoc\el Registe,
3
I
0
0
0
0
0
ACR
Add CholQcte, Regi,te,
3
I
0
0
0
0
,
Subtract Choroclel
3
,
0
0
0
0
0
I
0
3
I
0
N, 0
0
I
,
r---T"""
SCR
RegiHel
0
I
0
0
0
I
0
0
0
I
0
0
0
1
0
0
0
0
CCR
Compare ChorQcte!
XCR
Exclusive Or Character
Regishn
3
I
0
0
0
,
0
0
,
0
0
OCR
OR Choracter Registe,
3
I
0
0
0
I
0
I
I
0
0
0
NCR
And Character Register
3
I
0
0
0
I
0
I
0
0
0
3
I
0
0
,
I
I
I
0
0
0
,
, ,
0
0
LCOR
Register
load Character with
Offset R(;gister
R2
"'2
0
0
~
Insert Character and
5
2
0
0
5
2
0
0
Insert Ch:Jrocter
4
2
0
STC
Store Chorocter
4
2
0
LH
Lood Halfword
4
2
0
0
STH
Store Ho I fword
4
2
0
0
ICT
STC!
IC
Count
Store Character and
Count
.
R,
R
I
I
B
N
0
I
0
0
0
0
0
0
0
0
0
0
0
,
-
D
I:
0
D
1
R
I:
L
Load
5
2'
0
0
ST
Store
5
2'
0
0
LHR
Load Holfword
3
1
0
0
I
0
0
0
0
0
0
0
AHR
Add Halfword
3
1
0
0
1
0
0
1
0
0
0
0
1
0
0
I
0
0
I
0
,
0
0
0
0
I
0
0
0
I
0
0
0
Regi~tef
Regi~ter
XHR
Subtroct Halfword
Register
Compare Holfword
Register
Exclusive Or Holfword
OHR
OR Helfword Register
NHR
And Holfword
LHOR
Load He I fword with
Offset Register
3
LR
Lood Register
3
AR
Add Registel
3
5HR
CHR
Reg;~tel
Reg;~ter
3
3
3
3
3
,
,
,
,
,
-
R2
,
-
,
I
,
D
,
,
I
,
0
0
0
I
0
0
0
0
I
,
,
,
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
,
I
0
0
0
0
I
0
0
0
0
0
I
I
0
0
0
0
1
0
I
0
0
0
0
0
0
0
0
I
0
0
0
0
0
0
0
Re9i~ter
3
I
0
0
X.
Exclusive Or Register
3
I
0
0
OR
:JR Register
3
0
NR
And Register
3
,
0
0
0
, , ,
LOR
Load with Offset Register
3
I
0
0
,
I
BALR
8ranch & Link Register
4
2
0
0
,
IN
Input
2
,
0
OUT
Output
2
I
0
8AL
Branch & link
3
2
,0'011
LA
Load Address
3
2
I
EXIT
Exit
2
,
, ,,
-
I
0
,,
,
, , ,
0
I
, ,
0
R
0
0
I
I
0
0
0
0
0
0
0
0
0
I~
E
0
0
0
I
I
,
,
I
,
,
0
E
I nstruction Bit Structure
0
0
Subtract
0=+
0
0
I
Compare Registel
* '" 3 Cycles with Extended Addressing
0
0
0
SR
,.. '" Instructions that con olter condition latches.
)11 " -
0
1
I
C'
0
0
0
3
,
0
0
R,
0
,
0
0
0
0
0
a
0
0
I
0
0
~O
,
0
0
0
1
0
0
I
0
0
16
:I
0
A
f: /
GY30-3012-4
Intern.lonel B"~..... Meehlne, Corporellon
De.. Proc....... DIYI,lon
1133 W..lch..ler Av_, White PIIIInI, New York 1Il104
(U.S.A. only)
IBM World Trllde CorporMion
121 UnltllCl Nellon, PIeD, New York, New YOrk 10017
(lnterMllonel)
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.3 Linearized : No XMP Toolkit : Adobe XMP Core 4.2.1-c041 52.342996, 2008/05/07-21:37:19 Create Date : 2018:10:07 16:06:40-08:00 Modify Date : 2018:10:07 16:14:16-07:00 Metadata Date : 2018:10:07 16:14:16-07:00 Producer : Adobe Acrobat 9.0 Paper Capture Plug-in Format : application/pdf Document ID : uuid:453b0195-f735-844e-81a6-7637a71cf3c8 Instance ID : uuid:4c33984d-00bd-e143-bd7f-a779ea3a9f46 Page Layout : SinglePage Page Mode : UseNone Page Count : 312EXIF Metadata provided by EXIF.tools