GR 4_Schematic 4 Schematic
GR-4_Schematic GR-4_Schematic
User Manual: Pdf GR-4_Schematic
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Page Count: 21
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A
8 I 7 I 6 I I 4 1 3 1 1 1
INDY
ELAN
GRAPHICS -
GR4
BOARD
(Fab
#
034-8234-002
REV.
A)
Table
of
contents
1
GIO
64
Connectors
from
Motherboard
2
Pipeline
Registers
3
GIO
64
Clamp
Diodes
4
Clock
Logie,
Oscillators
5
CB1
ASIC
6
HQ2
ASIC
7
HQ2
OCode,
Version,
Interrupt
Conv. 8
GE7
OCode &
Shared
RAM
9
2GE7
ASIC
(Cavity
up,
topside)
10
2GE7
ASIC
(Cavity
down,
bottoms
ide)
11
RE3
ASIC
12
VB3
Connectors
and
Stereo
Port
13
ZRAM
Buffer
10
(ZRB1
ASIC) 16
ZRAM
Buffer
U
(ZRB1
ASIC) 17
ZRAM
Buffer
12
(ZRB1
ASIC) 18
Z-Buffer,
Banks
A,
B,
C,
D,
E
19
Z-Buffer,
Banks F,
G,
H,
I,
J 20
RE,
Display
Bus
Terminators,
Spares,
Standoffs
21
ATTENTION!!
THERE
ARE
SOME
REFERENCE
DESIGNATORS
ON
THE
SILKSCREEN
THAT
ARE
PLACE
INCORRECTLY
ON
THIS
BOARD.
PLEASE
SEE
PAGE
8
FOR
DETAILS.
SCHEMATIC
#032-8234-002
REV
D
POPs, PODs,
Terminators,
FIFO
stretch
14
~
Silicon
Graphics
computer
Systems
-
Digital
Sight
,
Sound
RB1
ASICs
for
Z
Buffer
Memory
15
GR4
SHEET
1
OF
21
8 I I 6
~~
4
D
t-
c
t-
B
t-
A
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PS01
GIOMSM'I
MTG1
RESERVED FOR
+3.3V
1
DI RESERVED FOR
+3.
3V
2
3
SAl>
CLl(
50MHZ
•
•
RESERVED FOR + 3 •
3V
•
7
RESERVED FOR
+3.3V
•
9
,.
11
12
II
14
RESERVED
-.J
1$
16
17
11
19
2.
21
22
23
24
e I
2'
r~
..
27
2.
2.
3.
31
3.
33
34
3.
3'
37
30
..
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..
U
S
..
3D3<>
3B3<>
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+5
vee
eB6
AI
e1
6
+5
vee
RESERVED FOR
+3.
3V
RESERVED FOR
+3.3V
R5mESERVED FOR
+3.3V
100
5%
~
RESERVED FOR
+3.3V
1/1611'
+12V
0603
•
SYS RST N D RESERVED
RESERVED
~
RETRACE N Do
U8<
RESERVED
GtO
READ
0 3A1<
~3A1<
RESERVED
GtO
MASOLY
~
3A1< RESERVED
RESERVED
FOR
-12
V •
e5B5
1
~6~UF
1':.
a~F
i
25V
TANT
3216
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vee
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6
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71
72
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76
77
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79
to
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os
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01
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..
MTG'
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1
CB5
1
10uF
1
m
TANT
7343
PSOO
GIOHSMT
MTG3
MTG1
RESERVED
01>
c
Vl!jN.'r
lt1:.jTKAQ;;
,.
RESERVED
3Al>
D
PG
GFX
GFXDLY
RESERVED
1A1> 0
GFX
FltoFULL
H I
RESERVED
3
GRX
RST H
02A4<
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7A1>
3A»
eLK
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c>
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9dS<o>
C
SB8
<
j ro GIO
~
--
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RESERVED FOR
+3.
3V
RESERVED
RESERVED FOR
+3.
3V
RESERVED FOR
+3.
3V
VT
VSTAT
N
RESERVED
RESERVED
RESERVED
..
S.
S1
52
..
..
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vee
::
E GIOI TO
PGIO
~
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fo
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76
77
78
79
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12
13
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IS
..
07
..
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gO
01
..
..
..
.S
..
+l2V
RESERVED FOR
-12
V •
MTG4
MTG2
U531
liI03>......
GRX
RST
'N
1407>
C>
PUP020
,10
I
II53
Q
JJ530
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llC.<
T A
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130<
*
Silicon
Graphics
Computer
Systems
GIO
64
Connectors
from
Motherboard
ENGIHH:
DRAWING:
GR4
gr4
GR4
2
OF
21
3
D
e
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'JAto.
PG
AD<31> 3
..
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AO<31>
2B80
408<
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PG
AO<JO> 5 a
..
52
GIC
AD<30>
288<>
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lA8<>
PG
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1.0<2'>
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PG
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8 A<.:.
..
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AD<21>
•
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AD<2S>
12
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0.'
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GIC AD<2S>
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408<
I D
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PG
AD<24>
13
A.O> a
..
..
GIC
1.0<24>
88<>
408<
'Ato.
PG
AD<23>
14
0
..
43
GO
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2B80
408<
lA8o.
G
ADe22>
15
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GIC AD<22>
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lA80
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>
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20
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3.
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28'<>
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1A8<>
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23
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leU
34
10
AO<U>
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408<
24
11.<17>
,<1,
33
26
1I.<18JO
..
31
1
....
II
2
....
~
ct.aAa
601>
GrOCLK
PGO
30
""""
R542
II
pE''''
+5
vee
4.7K
8
"'"
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2
4.7K
5\
1/16W
II
0603
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c I
4.7K
5\
1/16W
0603
1406>
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>.
1:310
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~>
8.<>
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7A8o.
PG
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01
4>
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A.I>
51
10
AC<D>
2B8<>
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PG
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..
4>
..
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AP<l
>
0>
2B8<>
40.<
1A8<>
PG
AD<11>
....
...
.8
0
<11>
2B.<>
40.<
Ut<>
< >
....
...
7
GIe
AQ<lQ>
co
2B8<>
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....
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1A8<> >
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15
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HC
17
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16
REG2 C
18
.'"
• 3 C
1406>
fiD1:>
~
..---
*
silicon
Graphics
Pipeline
Registers
Computer
Systems
ENGIMH~
Ah
Tye
DRAWING:
GR4
gr4
GR4
032-8234-002
Wed
Jul
13
16:50:36
1994
OF
21
6
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______________
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63
TNl
Ne
He
8
+5 vee
1J32
5DIODE
NTWK
15
6
47
,.
12
13
14
,.
TN3 Ne
19
TNO
He
•
+5 vee
1J33
5DIODE
NTWK
15
31
11
13
14
,.
TN
H "
TN'
He
20
+5 vee
1J37
5DIODE
NTWK
*
15
,.
11
12
14
18
~
~
silicon
Graphics
Computer
Systems
+5 vee
1J39
5DIODE
NTWK
GIO
64
ENGI~~!:
DRAWING: GR4
GR4
3
D
e
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A
clamp
diodes
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OF
21
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D
C
B
A
6D1> 0 HALF§IOCl.jK
FBIN
203> Co
GIO
CLJ«Q>
C553
10pF
This
capacitor
is
5%
used
to
tune
the
SOV
GIO
Clock
delay.
~~~3
NO_STUFF
+5
VCC
+5
vce
L4
~O
5%
1206
C552
C56
1
100PF
1
1000PF
-10% 10%
-
50V
r
50V
•
NPO
X7R
0603
0603
nJ30
2 PLL
FSO
470
5%
1/16W
0603
ECL
VCC
C44
~o~,
•.
00.
1,
°io'i
F
-16V
-Z5U
•
0603
VEE
ECL
VCC
These
Resistor
va1ues
need
to
be
to
be
reviewed!!
1
R527
4.7K
5%
.1/1611
0603
~
;1
..
FBIN
IN
1 20%
-16V
-Z5U
•
0603
C548
1000pF
U27
cr.1<1
8
P1L
CLK
11
NC
+5 vce
+5
VCC
f'
1180
5%
1/811
.1206
~R28
270
5%
.1/8W
1206
~R526
750
.D16W
0603
I.
..,....
H.
..,
0.
••
,..
"
10%
-50V
-X7R
•
0603
VEE
6
3
+5
VCC
ECL
VCC
120
180
5% 5%
1/8W
1/811
1206
1206
NOTE: THESE TERMINATIONS
MUST
BE
PLACED
AT
THE
END
OF
THE
NET!!
GFX
HCU
P :
,etc
:6;
GFX
BCLX
N
6et<
PECL
eLK
13
b i Wlt5i
~
:g:~
+5
VEE
t:~
C544
il
100PF
~
· i
~
eLK_OVec: • I
vc:c
OSC
5%
1206
1
4.
7~
TEOO
EN
~4q
R523
NO
STUFF
1"Jl.& 2
XJ;f;7CLK
Lh
C549
S 1
10pF
..
10%
IBt<
10%
i 2
SOV
NPO
0603
U35
R47
8
~~
J:.
g~PF
1/16WJ
50V
0603
NPO
0603
NO_STUFF
GND
Yl
60.1Mhz
SM990
110_STUFF
R52
o
5%
1/1611
0603
°7
50V
..
NPO
0603
l)
esc
3 1 Vv 2 C91 eLlS 5QMHZ Do
201<
SOIC
33
5%
1/1611
0603
.<t:>.
Silicon
Graphics
'<D'
Computer
Systems
ENGINEER
Dale
GR4
3
1
10pF
-
5%
J
~g~
0603
NO_STUFF
Clock
Logic,
Oscillators
RE
D 5
OF
21
D
C
B
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I
I
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C
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5B1>
581>
I-
7Bl>
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581>
B
1407>
I-
A
8 I 7 I 6 I 5 I 4 3 2 I 1
R30
13;'
5:
HALFGIOCLK
FBIN
5B'<
1/161'1
'.
0603
R25
(~
5:
HALFGIOCLlC
GEiA
10DI<
1101<
1/161'1
'.
0603
R24
,JL.5~
U29
HALFGIOCLK
!lO2
7CI< D
V.16W
0603
.JfT3
NOTE: THESE TERMINATIONS
MUST
R23
13~
5:
HALFGIOCLK
RE3
BE
PLACED
AT
THE
END
OF
THE
NET!!
12DI<
'l'HLFCLXO
'8
THCJ<
R1~/16f3
0603
+5
VCC
41
5'
'lHLFCLXl
THCJ<l
1 2
GIOCLlC
PGO
3A7<
387<
R52?
~~O
2
R34
180
'lHLFCLK2
..
THCJ<2
I 1/161'1 '
..
0603
.JfT4
3C7<
1 2
..
TIl'"''
R17
33
5~
.•.
THLFCLK3
HaLFGIOCLK
"'" "
13B1<
R35
120
R531
~~0-L
39
THCJ<'
11/161'1
0603
I-
TRLFCLX.
NO
STUFF
NO
STUFF
NO
STUFF
NO
STUFF
NO
STUFF
NO
STUFF
R528
1"20
2
R33
1"8~
2 F 2 F 1
~~F
C47
1
~~F
C50
1
~~~53
1
~~F
NOTE: PLACE THESE CAPACITORS
AND
THLFCLX'
38
THCJ<.
C36
1
5~
C35 1
5~
C41
2
==~gg
=~~~g
=
:=
~gg
=
:=
~gg
=
~gg
=
:=
50V
RESISTORS
NEAR
THE
CB1
ASIC
R39
120
2 R40 1'80
'rCLKO
'0
TCKO
2
0603
2
0603
2
0603
2
0603
2
0603
2
M~83
1 2
5·'
5~·
CBl
TCLKl
OS
TCKl
;1
NO
TUF~NO
TU~:lNO
TU~lNO":;TUF'1NO
TU~1NO
STUFF
~
1/81'1 1/81'1
7'
'rCLK2
"
TCK2
C68 1
g~F
C70 1
~~F
C7l
1
g~F
C72
1
g~F
C73
1
~~F
C64 1
g~F
1206
1206
n
TCK3
~~gg
~~gg
=F~gg
=F~gg
==~gg
=
~gg
C
TCLK3
..
R41
0
5~
2
0603
2
0603
2
0603
2
0603
2
0603
2
0603
GIOOLl<
Fa
",no
TCLK'
13B6<
GFX
HCLl(
P
55
3 1/161'1
....
_
0603
EHLFCLKINP
'rCLl<5
R42
10~
5~
GIOCLK
FB
RBlD
HOLK
50
EHLFCLKINN
13BI<
GFX eLK P
'rCLl<'
• 1/161'1
0603
57
ECLKINP I
R43
,0"
5~
0
58
ECLKINN
'rCL1<1
5
GIOCLK
FB
RBIA
13BI<
'rCL1<8
•
II
1/;161'1 '
••
0603
OWE
IlMA
50
CDNEDMA
R44
,0 A
5~
GIOCL1<
RE3
1201<
-
WE
GE7
N
34
CDNEGE7N
TCLK.
10
TCK.
l/r~
'·5~603
.JfT2
4XGE7CLK
32
T4XGEiCLK
TCLKl0
11
TCKl0
1 2
GIOCL1<
ZB
RB
lSD.<
33
TSEL4XGEl
~
R~/16W
, ...
0603
..2L.
TCLKll
38
0-"
5~
CIOCLK
""
ZRB10
R19
J
VCC
TTSTRSTN
13
lIC'<
'l'CLX12
1,1,161'1
0603
TClJ(13
14
I
R37
1
0"
5~
GIOC!.K
ZB
ZRB1B
11CI<
R20
NO_STUFF I 1/161'1 '
•.
0603
B
1-""
2 SE
4XGEl
1 A
-L
TSIlRl\MWElI
3S
R36
,0"
5~
GIOCLK
ZB
ZRBIA
16CI<
t
4~~
4".~K
I 1/161'1
"'_
0603
5'
5\
T2"XGE1CLKO
21
R18
,0
5~
SHRAM
HE
N 9B5<
1/16W
1/16W
22
T2XGEiCl(1 I
lfr~
0603
0603
0603
T2XGE1CLKl
5\
1 2
2XGE.1CLK
10DI<
1101<
CATSTRST N '!GE1CLXO 23
Vi6W
0603
R29
0,,,
5~
""7M,X
7C6<
'lGEiCLKl
24
TGE1CK1 1/161'1
0603
-
'!GEiCLK2
25
TGEiCX2 I
R26
,0
,"
5~
GEiCIJCl
10DI<
1101<
1/16W
0603
HA6<
'l'CASCLIC
30
R22
,0 ,
..
51
CASCLK
1C6<
1/16W
0603
NO
STUFF
NO
STUFF
NO
STUFF
NO
STUFF
NO
STUFF
1
HPF
C51
1
~iPF
C54 1
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