TI BLE HCI Vendor Specific Guide

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TI BLE Vendor Specific
HCI Reference Guide
Version 1.3.2

TI BLE HCI Vendor Specific HCI Guide

TABLE OF CONTENTS
1.

PURPOSE.............................................................................................................................................. 7

FUNCTIONAL OVERVIEW .............................................................................................................. 7

NUMERICAL NOTATION CONVENTIONS .................................................................................. 8

DEFINITIONS, ABBREVIATIONS, ACRONYMS.......................................................................... 9

REFERENCES...................................................................................................................................... 9

REVISION HISTORY ....................................................................................................................... 10

HCI OVERVIEW ............................................................................................................................... 10

SPECIFICATION INTERFACE....................................................................................................... 10
8.1
HCI INTERFACE PROTOCOL ........................................................................................................... 10
8.1.1
Command Packet .................................................................................................................. 10
8.1.2
Asynchronous Data Packet ................................................................................................... 11
8.1.3
Synchronous Data Packet ..................................................................................................... 11
8.1.4
Event Packet ......................................................................................................................... 11
8.2
HCI COMMAND ............................................................................................................................. 12
8.3
HCI EVENTS .................................................................................................................................. 14

VENDOR SPECIFIC INTERFACE ................................................................................................. 15
9.1
9.2
9.3

10.

VENDOR SPECIFIC COMMANDS ...................................................................................................... 15
VENDOR SPECIFIC EVENTS ............................................................................................................ 20
REQUEST AND RESPONSE TUNNELING ........................................................................................... 24
HCI EXTENSION VENDOR SPECIFIC COMMANDS............................................................ 25

10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.10
10.11
10.12
10.13
10.14
10.15
10.16
10.17
10.18
10.19
10.20
10.21

HCI EXTENSION SET RECEIVER GAIN ............................................................................................ 25
HCI EXTENSION SET TRANSMITTER POWER .................................................................................. 25
HCI EXTENSION ONE PACKET PER EVENT .................................................................................... 26
HCI EXTENSION CLOCK DIVIDE ON HALT ..................................................................................... 27
HCI EXTENSION DECLARE NV USAGE .......................................................................................... 27
HCI EXTENSION DECRYPT............................................................................................................. 28
HCI EXTENSION SET LOCAL SUPPORTED FEATURES ..................................................................... 29
HCI EXTENSION SET FAST TRANSMIT RESPONSE TIME ................................................................. 29
HCI EXTENSION MODEM TEST TRANSMIT .................................................................................... 30
HCI EXTENSION MODEM HOP TEST TRANSMIT ......................................................................... 31
HCI EXTENSION MODEM TEST RECEIVE ................................................................................... 32
HCI EXTENSION END MODEM TEST .......................................................................................... 33
HCI EXTENSION SET BDADDR ................................................................................................ 33
HCI EXTENSION SET SCA ......................................................................................................... 34
HCI EXTENSION ENABLE PTM.................................................................................................. 35
HCI EXTENSION SET FREQUENCY TUNING ................................................................................ 35
HCI EXTENSION SAVE FREQUENCY TUNING ............................................................................. 36
HCI EXTENSION SET MAX DTM TRANSMITTER POWER ........................................................... 36
HCI EXTENSION MAP PM IO PORT ........................................................................................... 37
HCI EXTENSION DISCONNECT IMMEDIATE ................................................................................ 38
HCI EXTENSION PACKET ERROR RATE...................................................................................... 39
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10.22
10.23
10.24
10.25
10.26
10.27
10.28
11.

HCI EXTENSION VENDOR SPECIFIC EVENTS .................................................................... 47

11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
11.10
11.11
11.12
11.13
11.14
11.15
11.16
11.17
11.18
11.19
11.20
11.21
11.22
11.23
11.24
11.25
11.26
11.27
11.28
12.

HCI EXTENSION PACKET ERROR RATE BY CHANNEL ............................................................... 40
HCI EXTENSION EXTEND RF RANGE ......................................................................................... 41
HCI EXTENSION ADVERTISER EVENT NOTICE ........................................................................... 42
HCI EXTENSION CONNECTION EVENT NOTICE .......................................................................... 43
HCI EXTENSION HALT DURING RF............................................................................................ 44
HCI EXTENSION SET SLAVE LATENCY OVERRIDE ..................................................................... 44
HCI EXTENSION BUILD REVISION .............................................................................................. 45
HCI EXTENSION SET RECEIVER GAIN ............................................................................................ 47
HCI EXTENSION SET TRANSMITTER POWER .................................................................................. 47
HCI EXTENSION ONE PACKET PER EVENT .................................................................................... 48
HCI EXTENSION CLOCK DIVIDE ON HALT ..................................................................................... 48
HCI EXTENSION DECLARE NV USAGE .......................................................................................... 49
HCI EXTENSION DECRYPT............................................................................................................. 49
HCI EXTENSION SET LOCAL SUPPORTED FEATURES ..................................................................... 50
HCI EXTENSION SET FAST TRANSMIT RESPONSE TIME ................................................................. 50
HCI EXTENSION MODEM TEST TRANSMIT .................................................................................... 51
HCI EXTENSION MODEM HOP TEST TRANSMIT ......................................................................... 51
HCI EXTENSION MODEM TEST RECEIVE ................................................................................... 52
HCI EXTENSION END MODEM TEST .......................................................................................... 52
HCI EXTENSION SET BDADDR ................................................................................................ 53
HCI EXTENSION SET SCA ......................................................................................................... 53
HCI EXTENSION ENABLE PTM.................................................................................................. 54
HCI EXTENSION SET FREQUENCY TUNING ................................................................................ 54
HCI EXTENSION SAVE FREQUENCY TUNING ............................................................................. 54
HCI EXTENSION SET MAX DTM TRANSMITTER POWER ........................................................... 55
HCI EXTENSION MAP PM IO PORT ........................................................................................... 55
HCI EXTENSION DISCONNECT IMMEDIATE ................................................................................ 56
HCI EXTENSION PACKET ERROR RATE...................................................................................... 56
HCI EXTENSION PACKET ERROR RATE BY CHANNEL ............................................................... 58
HCI EXTENSION EXTEND RF RANGE ......................................................................................... 58
HCI EXTENSION ADVERTISER EVENT NOTICE ........................................................................... 59
HCI EXTENSION CONNECTION EVENT NOTICE .......................................................................... 59
HCI EXTENSION HALT DURING RF............................................................................................ 59
HCI EXTENSION SET SLAVE LATENCY OVERRIDE ..................................................................... 60
HCI EXTENSION BUILD REVISION .............................................................................................. 60

GAP VENDOR SPECIFIC COMMANDS ................................................................................... 62

12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
12.9
12.10
12.11
12.12
12.13
12.14

GAP DEVICE INITIALIZATION......................................................................................................... 62
GAP CONFIGURE DEVICE ADDRESS .............................................................................................. 63
GAP DEVICE DISCOVERY REQUEST .............................................................................................. 64
GAP DEVICE DISCOVERY CANCEL ................................................................................................ 65
GAP MAKE DISCOVERABLE .......................................................................................................... 66
GAP UPDATE ADVERTISING DATA ................................................................................................ 68
GAP END DISCOVERABLE ............................................................................................................. 69
GAP ESTABLISH LINK REQUEST .................................................................................................... 69
GAP TERMINATE LINK REQUEST................................................................................................... 71
GAP AUTHENTICATE ................................................................................................................. 71
GAP UPDATE LINK PARAMETER REQUEST ................................................................................ 75
GAP PASSKEY UPDATE ............................................................................................................. 77
GAP SLAVE SECURITY REQUEST ............................................................................................... 77
GAP SIGNABLE .......................................................................................................................... 78
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12.15
GAP BOND ................................................................................................................................ 79
12.16
GAP TERMINATE AUTH ............................................................................................................. 81
12.17
GAP SET PARAMETER ............................................................................................................... 82
12.18
GAP GET PARAMETER .............................................................................................................. 85
12.19
GAP RESOLVE PRIVATE ADDRESS............................................................................................. 86
12.20
GAP SET ADVERTISEMENT TOKEN............................................................................................ 87
12.21
GAP REMOVE ADVERTISEMENT TOKEN .................................................................................... 88
12.22
GAP UPDATE ADVERTISEMENT TOKENS ................................................................................... 90
12.22.1
GAP Bond Set Parameter ................................................................................................. 90
12.22.2
GAP Bond Get Parameter................................................................................................. 92
13.

GAP VENDOR SPECIFIC EVENTS............................................................................................ 94

13.1
13.2
13.3
13.4
13.5
13.6
13.7
13.8
13.9
13.10
13.11
13.12
13.13
13.14
13.15
13.16
13.17
14.
14.1
14.2
14.3
14.4
15.
15.1
16.
16.1
16.2
17.
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9

GAP DEVICE INIT DONE ................................................................................................................ 94
GAP DEVICE DISCOVERY .............................................................................................................. 95
GAP ADVERT DATA UPDATE DONE .............................................................................................. 96
GAP MAKE DISCOVERABLE DONE ................................................................................................ 96
GAP END DISCOVERABLE DONE ................................................................................................... 97
GAP LINK ESTABLISHED ............................................................................................................... 97
GAP LINK TERMINATED ................................................................................................................ 99
GAP LINK PARMETER UPDATE .................................................................................................... 100
GAP RANDOM ADDRESS CHANGED ............................................................................................ 101
GAP SIGNATURE UPDATED ..................................................................................................... 102
GAP AUTHENTICATION COMPLETE ......................................................................................... 103
GAP PASSKEY NEEDED ........................................................................................................... 106
GAP SLAVE REQUESTED SECURITY......................................................................................... 107
GAP DEVICE INFORMATION .................................................................................................... 108
GAP BOND COMPLETE ............................................................................................................ 109
GAP PAIRING REQUESTED ....................................................................................................... 110
COMMAND STATUS .................................................................................................................. 111

UTIL VENDOR SPECIFIC COMMANDS................................................................................ 113
UTIL RESET COMMAND .............................................................................................................. 113
UTIL NV READ COMMAND......................................................................................................... 113
UTIL NV WRITE COMMAND ....................................................................................................... 115
UTIL FORCE BOOT COMMAND.................................................................................................... 116
L2CAP VENDOR SPECIFIC COMMANDS............................................................................. 118
L2CAP_CONNPARAMUPDATEREQ (0XFC92)............................................................................. 118
L2CAP VENDOR SPECIFIC EVENTS ..................................................................................... 120
L2CAP_CMDREJCT (0X0481)..................................................................................................... 120
L2CAP_CONNPARAMUPDATERSP (0X0493) .............................................................................. 120
ATT VENDOR SPECIFIC COMMANDS AND EVENTS....................................................... 122
ATT VENDOR SPECIFIC COMMANDS ........................................................................................... 122
ATT VENDOR SPECIFIC EVENTS .................................................................................................. 123
ATT_ERRORRSP (COMMAND = 0XFD01, EVENT = 0X0501) ...................................................... 123
ATT_EXCHANGEMTUREQ (COMMAND = 0XFD02, EVENT = 0X0502) ...................................... 124
ATT_EXCHANGEMTURSP (COMMAND = 0XFD03, EVENT = 0X0503)....................................... 125
ATT_FINDINFOREQ (COMMAND = 0XFD04, EVENT = 0X0504) ................................................. 125
ATT_FINDINFORSP (COMMAND = 0XFD05, EVENT = 0X0505) .................................................. 125
ATT_FINDBYTYPEVALUEREQ (COMMAND = 0XFD06, EVENT = 0X0506) ................................ 126
ATT_FINDBYTYPEVALUERSP (COMMAND = 0XFD07, EVENT = 0X0507) ................................. 127
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17.10
17.11
17.12
17.13
17.14
17.15
17.16
17.17
17.18
17.19
17.20
17.21
17.22
17.23
17.24
17.25
17.26
17.27
17.28
18.

GATT VENDOR SPECIFIC COMMANDS .............................................................................. 137

18.1
18.2
18.3
18.4
18.5
18.6
18.7
18.8
18.9
18.10
18.11
18.12
18.13
18.14
18.15
18.16
18.17
18.18
18.19
18.20
18.21
18.22
18.23
18.24
18.25
19.
19.1
20.

ATT_READBYTYPEREQ (COMMAND = 0XFD08, EVENT = 0X0508) ...................................... 127
ATT_READBYTYPERSP (COMMAND = 0XFD09, EVENT = 0X0509) ....................................... 128
ATT_READREQ (COMMAND = 0XFD0A, EVENT = 0X050A) .................................................. 129
ATT_READRSP (COMMAND = 0XFD0B, EVENT = 0X050B) ................................................... 129
ATT_READBLOBREQ (COMMAND = 0XFD0C, EVENT = 0X050C) ......................................... 129
ATT_READBLOBRSP (COMMAND = 0XFD0D) ....................................................................... 130
ATT_READMULTIREQ (COMMAND = 0XFD0E, EVENT = 0X050E) ........................................ 130
ATT_READMULTIRSP (COMMAND = 0XFD0F, EVENT = 0X050F) ......................................... 131
ATT_READBYGRPTYPEREQ (COMMAND = 0XFD10, EVENT = 0X0510) ............................... 131
ATT_READBYGRPTYPERSP (COMMAND = 0XFD11, EVENT = 0X0511) ................................ 132
ATT_WRITEREQ (COMMAND = 0XFD12, EVENT = 0X0512) .................................................. 132
ATT_WRITERSP (COMMAND = 0XFD13, EVENT = 0X0513)................................................... 133
ATT_PREPAREWRITEREQ (COMMAND = 0XFD16, EVENT = 0X0516).................................... 133
ATT_PREPAREWRITERSP (COMMAND = 0XFD17, EVENT = 0X0517) .................................... 134
ATT_EXECUTEWRITEREQ (COMMAND = 0XFD18, EVENT = 0X0518) ................................... 135
ATT_EXECUTEWRITERSP (COMMAND = 0XFD19, EVENT = 0X0519).................................... 135
ATT_HANDLEVALUENOTI (COMMAND = 0XFD1B, EVENT = 0X051B).................................. 135
ATT_HANDLEVALUEIND (COMMAND = 0XFD1D, EVENT = 0X051D) ................................... 136
ATT_HANDLEVALUECFM (COMMAND = 0XFD1E, EVENT = 0X051E) ................................... 136
GATT_EXCHANGEMTU (0XFD82) ............................................................................................ 137
GATT_DISCALLPRIMARYSERVICES (0XFD90) .......................................................................... 138
GATT_DISCPRIMARYSERVICEBYUUID (0XFD86).................................................................... 138
GATT_FINDINCLUDEDSERVICES (0XFDB0)............................................................................... 138
GATT_DISCALLCHARS (0XFDB2) ............................................................................................. 139
GATT_DISCCHARSBYUUID (0XFD88) ..................................................................................... 140
GATT_DISCALLCHARDESCS (0XFD84)..................................................................................... 140
GATT_READCHARVALUE (0XFD8A) ........................................................................................ 141
GATT_READUSINGCHARUUID (0XFDB4)................................................................................ 141
GATT_READLONGCHARVALUE (0XFD8C) ........................................................................... 141
GATT_READMULTICHARVALUES (0XFD8E)......................................................................... 142
GATT_WRITENORSP (0XFDB6) ............................................................................................ 142
GATT_SIGNEDWRITENORSP (0XFDB8) ................................................................................ 143
GATT_WRITECHARVALUE (0XFD92).................................................................................... 143
GATT_WRITELONGCHARVALUE (0XFD96) .......................................................................... 144
GATT_RELIABLEWRITES (0XFDBA) ..................................................................................... 145
GATT_READCHARDESC (0XFDBC) ...................................................................................... 145
GATT_READLONGCHARDESC (0XFDBE) ............................................................................. 146
GATT_WRITECHARDESC (0XFDC0)...................................................................................... 146
GATT_WRITELONGCHARDESC (0XFDC2) ............................................................................ 147
GATT_NOTIFICATION (0XFD9B)............................................................................................ 147
GATT_INDICATION (0XFD9D) ............................................................................................... 148
GATT_ADDSERVICE (0XFDFC) ............................................................................................. 148
GATT_DELSERVICE (0XFDFD).............................................................................................. 149
GATT_ADDATTRIBUTE (0XFDFE)......................................................................................... 149

GATT VENDOR SPECIFIC EVENTS....................................................................................... 151
GATT_CLIENTCHARCFGUPDATED (0X0580) ............................................................................. 151
HOST ERROR CODES ............................................................................................................... 153

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TABLE OF FIGURES
Figure 1: Logical Organization of Application and BLE Stack ...................................................................... 7
Figure 2: Single Device Configuration ........................................................................................................... 7
Figure 3: Dual Device Configuration.............................................................................................................. 8
Figure 4: Network Processor Configuration with HCI.................................................................................... 8
Figure 5: Command Packet........................................................................................................................... 11
Figure 6: Asynchronous Data Packet ............................................................................................................ 11
Figure 7: Event Packet .................................................................................................................................. 12
Figure 8: Request/Response with Server Database in BLE Stack................................................................. 24
Figure 9: Request/Response with Server Database not in BLE Stack........................................................... 24

TABLE OF TABLES
Table 1: HCI Packet Types ........................................................................................................................... 10
Table 2: BLE Commands.............................................................................................................................. 14
Table 3: BLE Events..................................................................................................................................... 15
Table 4: Command Opcode Subgroups ........................................................................................................ 15
Table 5: Vendor Specific Commands ........................................................................................................... 19
Table 6: Event Opcode Group ...................................................................................................................... 20
Table 7: Vendor Specific Events .................................................................................................................. 23
Table 8: List of Possible Host Error Codes................................................................................................. 154

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1. Purpose
The purpose of this document is to describe the Texas Instruments Inc. (TI) vendor specific
Host Controller Interface (HCI) for Bluetooth® low energy (BLE). This document is intended for
customer product software engineers and field application engineers working with the TI BLE
stack software.

2. Functional Overview
In BLE, there is a logical distinction between the Host software (often referred to as the higher
layer stack) and the Controller software (please see Figure 1).

Figure 1: Logical Organization of Application and BLE Stack

These components can either exist on the same device (single-device configuration), or be
placed on separate devices (dual-device configuration) utilizing a Host Controller Interface (HCI)
for communication (see section 7 for more detail). In the single-device configuration, there is
obviously only one device, and the application software would execute on top of the BLE profiles
and stack (please see Figure 2).

Figure 2: Single Device Configuration

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In the a dual-device configuration, the application software would also execute on top of the
BLE profiles and stack, and only the controller would be located on a separate device (please
see Figure 3).

Figure 3: Dual Device Configuration

However, allowing an application to be developed on one device while communicating with the
BLE stack executing on another allows access to the BLE stack that would not normally be
available (please see Figure 4).

Figure 4: Network Processor Configuration with HCI
This configuration provides is a very convenient configuration for creating a test development
environment where the “application” is actually a test tool that can execute scripts, generate
logs, etc. Note however that the HCI as defined by Bluetooth only allows Controller commands
and events. As such, a set of Vendor Specific commands and events will be used instead, and
that is what this document intends to convey.

3. Numerical Notation Conventions
Multiple-octets may be specified in hexadecimal notation in one of two ways:
Standard Hexadecimal Notation
In this notation, a single hexadecimal radix indicator “0x” precedes the entire value. The octet
order as read from left to right is from most significant octet to least significant octet. For
example, for the value 0x123456ABCDEF, ’12’ is the most significant octet and ‘EF’ is the least
significant octet.
Colon Separated Hexadecimal Notation
In this notation, the hexadecimal radix indicator “0x” is not used and octets are colon separated.
The octet order as read from left to right is from least significant octet to most significant octet.
For example, for the value 12:34:56:AB:CD:EF, ’12’ is the least significant octet and ‘EF’ is the
most significant octet.

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4. Definitions, Abbreviations, Acronyms
Term

Definition

ATT

Attribute Protocol

Broadcast

BLE

Bluetooth Low Energy

Bluetooth

CMD

Command

CSG

Command Subgroup

Event Code

EOEF

Event Opcode Event Field

EOGF

Event Opcode Group Field

ESG

Event Subgroup

GAP

Generic Access Profile

GATT

Generic Attribute Profile

HCI

Host Controller Interface

IDE

Integrated Development Environment

L2CAP

Logical Link Control and Adaptation Protocol

Low Energy

Link Layer

OCF

Opcode Command Field

OGF

Opcode Group Field

OTA

Over The Air

Packet Boundary

PER

Packet Error Rate

PHY

Physical Layer

PPM

Parts Per Million

SCA

Sleep Clock Accuracy

Security Manager

Non-Volatile

5. References
[1] Specification of the Bluetooth System, Core Version 4.0, June 30, 2010.
http://www.bluetooth.com/Specification%20Documents/Core_V40.zip

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6. Revision History
Date (YMD)

Document version

Description of changes

2010-09-30

V1.0

Initial

2011-07-13

V1.1

BLE V1.1 RTM.

2011-12-02

V1.1b

BLE V1.1b RTM.

2012-03-16

V1.2.1

BLE V1.2.1 RTM

2012-05-18

V1.2.2

BLE V1.2.2 RTM

2012-12-13

V1.3

2013-04-18

V1.3.1

BLE V1.3.1 RTM

2013-06-??

V1.3.2

BLE V1.3.2 RTM

BLE V1.3 RTM

7. HCI Overview
The HCI is a standardized Bluetooth interface for sending commands, receiving events, and for
sending and receiving data. It is typically realized as a serial interface, using either RS232 or
USB communication devices. As the name implies, the HCI is used to bridge the Host and
Controller devices. Commands and Events can either be specified, or can be vendor specific for
extensibility. The following sections summarize the HCI protocol, the specification defined
commands and events used by BLE, and a detailed description of the vendor specific
commands and events defined by Texas Instruments Inc. For complete details on the HCI as
specified by the Special Interest Group (SIG), please see the Core specification [1].

8. Specification Interface
8.1 HCI Interface Protocol
The HCI supports four types of packets: Command Packet, Asynchronous Data Packet,
Synchronous Data Packet, and Event Packet. The packet type is a one byte value that
precedes the HCI packet. The packet type has the following values:
Packet

Packet Type

Command

Asynchronous Data

Synchronous Data

Event

Table 1: HCI Packet Types
The contents of each packet are shown as follows (please see section 5.4 of [1], Vol. 2, Part E
for additional details).

8.1.1 Command Packet
The command packet is comprised of the opcode, the number of parameters, and parameters
themselves.

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Figure 5: Command Packet

8.1.2 Asynchronous Data Packet
The asynchronous data packet is comprised of the connection handle, fragmentation bits, the
number of data bytes, and the data bytes themselves.

Figure 6: Asynchronous Data Packet

8.1.3 Synchronous Data Packet
This synchronous data packet is not used in BLE.

8.1.4 Event Packet
The event packet is comprised of the event code, the number of event parameters, and the
event parameters themselves.

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Figure 7: Event Packet

8.2 HCI Command
HCI commands use a 16-bit opcode for identification. The opcode is subdivided into two parts: a
10-bit Opcode Command Field (OCF) and a 6-bit Opcode Group Field (OGF).

The OGF values are defined by the Bluetooth (BT) Core specification. The LE specification has
its own OGF value. Also, there is an escape OGF value so that vendor specific OCF codes can
be used. The following OGF values are valid for BLE:


Link Control Commands:



Link Policy Commands:



Controller and Baseband Commands:



Informational Parameters:



Status Parameters:



Testing Commands:



LE Only Commands:



Vendor Specific Commands:

The following table lists all specification BLE commands and their opcodes. Note that while all
commands can be used in a Network Processor Configuration with HCI, not all events will be
returned as they will be trapped and possibly discarded by the BLE Stack.

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Commands
LE Commands

OGF

OCF

Opcode

LE Set Event Mask

0x2001

LE Read Buffer Size

0x2002

LE Read Local Supported Features

0x2003

LE Set Random Address

0x2005

LE Set Advertising Parameters

0x2006

LE Read Advertising Channel TX Power

0x2007

LE Set Advertising Data

0x2008

LE Set Scan Response Data

0x2009

LE Set Advertise Enable

0x200A

LE Set Scan Parameters

0x200B

LE Set Scan Enable

0x200C

LE Create Connection

0x200D

LE Create Connection Cancel

0x200E

LE Read White List Size

0x200F

LE Clear White List

0x2010

LE Add Device To White List

0x2011

LE Remove Device From White List

0x2012

LE Connection Update

0x2013

LE Set Host Channel Classification

0x2014

LE Read Channel Map

0x2015

LE Read Remote Used Features

0x2016

LE Encrypt

0x2017

LE Rand

0x2018

LE Start Encryption

0x2019

LE Long Term Key Requested Reply

0x201A

LE Long Term Key Requested Negative Reply

0x201B

LE Read Supported States

0x201C

LE Receiver Test

0x201D

LE Transmitter Test (max TX power for CC2541 is 0 dBm)

0x201E

LE Test End Command

0x201F

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Commands
BT Commands for LE

OGF

OCF

Opcode

Disconnect

0x0406

Read Remote Version Information

0x041D

Set Event Mask

0x0C01

Reset

0x0C03

Read Transmit Power Level

0x0C2D

Set Controller To Host Flow Control (optional)

0x0C31

Host Buffer Size (optional)

0x0C33

Host Number Of Completed Packets (optional)

0x0C35

Read Local Version Information

0x1001

Read Local Supported Commands (optional)

0x1002

Read Local Supported Features

0x1003

Read BD_ADDR

0x1009

Read RSSI

0x1405

Table 2: BLE Commands

8.3 HCI Events
HCI events use an 8-bit event code. All event codes are unique for BT and BLE. Only event
code 255 is reserved for vendor specific events. There is only one event code for all LE events.
The first event parameter is used as the subevent code to distinguish the LE event types.
The following table lists all the BLE events and their event codes, and subevent codes when
applicable:

Events
LE Events

Event Code

Subevent Code

LE Connection Complete

0x3E

0x01

LE Advertising Report

0x3E

0x02

LE Connection Update Complete

0x3E

0x03

LE Read Remote Used Features Complete

0x3E

0x04

LE Long Term Key Requested

0x3E

0x05

BT Events

Event Code

Disconnection Complete

0x05

Encryption Change

0x08

Read Remote Version Information Complete

0x0C
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Command Complete

0x0E

Command Status

0x0F

Hardware Error (optional)

0x10

Number Of Completed Packets

0x13

Data Buffer Overflow

0x1A

Encryption Key Refresh Complete

0x30
Table 3: BLE Events

9. Vendor Specific Interface
As mentioned, vendors can specify their own HCI commands and events by using the predefined vendor specific opcode and vendor specific event code.

9.1 Vendor Specific Commands
A vendor specific opcode is indicated by an OGF value of 63. The vendor can use the remaining
10 bits (i.e. the OCF) as they like. TI defines its vendor specific OCF values by subdividing the
10 bits into a 3 MSB Command Subgroup (CSG) and a 7 LSB Command (CMD). The CSG is
used by the HCI to route the commands to a designated subsystem within the BLE stack. In this
way, vendor specific commands can be specified for any BLE stack layer.

HCI Vendor Specific Command Opcode, CSG=0..6
15

10 9
111111b

7 6
CSG (=0..6)

0
Command

The Command Subgroups are defined as follows:

CSG

Subgroup

HCI

L2CAP

ATT

GATT

GAP

UTIL

Reserved

User Profile

Table 4: Command Opcode Subgroups

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For Command Subgroups 0 to 6, the remaining 7 bits of Command provide up to 128
commands for each subgroup. For Subgroup 7, the remaining 7 bits specify one of 128 profiles
and indicates that the subsequent byte is to be used as the command for that particular profile
(i.e. up to 256 commands per profile).

The following table lists all TI-specific HCI commands:

Vendor Specific Commands
LE Commands

OGF

CSG

CMD

Opcode

HCI Extension Set Rx Gain

0xFC00

HCI Extension Set Tx Power

0xFC01

HCI Extension One Packet Per Event

0xFC02

HCI Extension Clock Divide On Halt

0xFC03

HCI Extension Declare NV Usage

0xFC04

HCI Extension Decrypt

0xFC05

HCI Extension Set Local Supported Features

0xFC06

HCI Extension Set Fast Tx Response Time

0xFC07

HCI Extension Modem Test Tx

0xFC08

HCI Extension Modem Hop Test Tx

0xFC09

HCI Extension Modem Test Rx

0xFC0A

HCI Extension End Modem Test

0xFC0B

HCI Extension Set BDADDR

0xFC0C

HCI Extension Set SCA

0xFC0D

HCI Extension Enable PTM

0xFC0E

HCI Extension Set Frequency Tuning

0xFC0F

HCI Extension Save Frequency Tuning

0xFC10

HCI Extension Set Max DTM Tx Power

0xFC11

HCI Extension Map PM IO Port

0xFC12

Not supported by HCI; only direct function call is allowed. No event is returned.
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Vendor Specific Commands
LE Commands

OGF

CSG

CMD

Opcode

0xFC13

0xFC14

HCI Extension Packet Error Rate by Channel

0xFC15

HCI Extension Extend RF Range

0xFC16

0xFC17

HCI Extension Connection Event Notice

0xFC18

HCI Extension Halt During RF

0xFC19

HCI Extension Set Slave Latency Override

0xFC1A

HCI Extension Build Revision

0xFC1B

L2CAP Connection Parameter Update Request

0xFC92

ATT Error Response

0xFD01

ATT Exchange MTU Request

0xFD02

ATT Exchange MTU Response

0xFD03

ATT Find Information Request

0xFD04

ATT Find Information Response

0xFD05

ATT Find By Type Value Request

0xFD06

ATT Find By Type Value Response

0xFD07

ATT Read By Type Request

0xFD08

ATT Read By Type Response

0xFD09

ATT Read Request

0xFD0A

ATT Read Response

0xFD0B

ATT Read Blob Request

0xFD0C

ATT Read Blob Response

0xFD0D

ATT Read Multiple Request

0xFD0E

ATT Read Multiple Response

0xFD0F

ATT Read By Group Type Request

0xFD10

ATT Read By Group Type Response

0xFD11

ATT Write Request

0xFD12

ATT Write Response

0xFD13

ATT Prepare Write Request

0xFD16

ATT Prepare Write Response

0xFD17

HCI Extension Disconnect Immediate
HCI Extension Packet Error Rate
2

HCI Extension Advertiser Event Notice

Not supported by HCI; only direct function call is allowed. No event is returned.
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Vendor Specific Commands
LE Commands

OGF

CSG

CMD

Opcode

ATT Execute Write Request

0xFD18

ATT Execute Write Response

0xFD19

ATT Handle Value Notification

0xFD1B

ATT Handle Value Indication

0xFD1D

ATT Handle Value Confirmation

0xFD1E

GATT Discover Characteristics By UUID

0xFD88

GATT Write Long

0xFD96

GAP Device Initialization

0xFE00

GAP Configure Device Address

0xFE03

GAP Device Discovery Request

0xFE04

GAP Device Discovery Cancel

0xFE05

GAP Make Discoverable

0xFE06

GAP Update Advertising Data

0xFE07

GAP End Discoverable

0xFE08

GAP Establish Link Request

0xFE09

GAP Terminate Link Request

0xFE0A

GAP Authenticate

0xFE0B

GAP Passkey Update

0xFE0C

GAP Slave Security Request

0xFE0D

GAP Signable

0xFE0E

GAP Bond

0xFE0F

GAP Terminate Auth

0xFE10

GAP Update Link Parameter Request

0xFE11

GAP Set Parameter

0xFE30

GAP Get Parameter

0xFE31

GAP Resolve Private Address

0xFE32

GAP Set Advertisement Token

0xFE33

GAP Remove Advertisement Token

0xFE34

GAP Update Advertisement Tokens

0xFE35

GAP Bond Set Parameter

0xFE36

GAP Bond Get Parameter

0xFE37

UTIL Reset

0xFE80

UTIL NV Read

0xFE81

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Vendor Specific Commands
LE Commands

OGF

CSG

CMD

Opcode

UTIL NV Write

0xFE82

Reserved

0xFF00

User Profiles

0xFF80

Table 5: Vendor Specific Commands

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9.2 Vendor Specific Events
A vendor specific event code is indicated by a value of 255. The vendor must then use event
parameters (following the length byte) to specify vendor specific events. TI defines the following
two bytes as the Event Opcode.

Event Code
7

Event Opcode
0 7

0 15

0xFF

Length

The Event Opcode was chosen to mirror the Command Opcode by dividing it into two parts: a 6
bit Event Opcode Group Field (EOGF), and a 10 bit Event Opcode Event Field (EOEF).

Event Opcode
15

10 9

EOGF

EOEF

The EOEF is again chosen to mirror the Command OCF by dividing it into two parts: the Event
Subgroup (ESG) and the Event.

Event Opcode
15

10 9
EOGF

7 6
ESG

0
Event

The EOGF is defined as follows:

EOGF

Group

Embedded Opcode

Core Opcode

Profile Request

Profile Response

4 .. 63

Reserved

Table 6: Event Opcode Group
The ESG is defined as in Table 4. The Events are as defined in the following table. Please note
that the value of the Events cannot be less than 0x400 as the first 1024 values are reserved.
The reason for this has to do with Client/Server Request/Response Tunneling, which is
described in the following section. Tunneling requires embedding Command Opcodes in HCI
Events. When this is done, the EOGF is zero, and the remaining 10 bits is the Command
Opcode. In order to prevent Command and Event Opcode overlap, the first 1024 values are
reserved in the Event Opcode space. Also note that the Event Code (EC) is always 0xFF since
normally only Controller events are returned via the HCI.

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Vendor Specific Events
LE Events

EOGF ESG Event

Opcode

HCI Extension Set Rx Gain

0xFF

0x0400

HCI Extension Set Tx Power

0xFF

0x0401

HCI Extension One Packet Per Event

0xFF

0x0402

HCI Extension Clock Divide On Halt

0xFF

0x0403

HCI Extension Declare NV Usage

0xFF

0x0404

HCI Extension Decrypt

0xFF

0x0405

HCI Extension Set Local Supported Features

0xFF

0x0406

HCI Extension Set Fast Tx Response Time

0xFF

0x0407

HCI Extension Modem Test Tx

0xFF

0x0408

HCI Extension Modem Hop Test Tx

0xFF

0x0409

HCI Extension Modem Test Rx

0xFF

0x040A

HCI Extension End Modem Test

0xFF

0x040B

HCI Extension Set BDADDR

0xFF

0x040C

HCI Extension Set SCA

0xFF

0x040D

HCI Extension Enable PTM

0xFF

0x040E

HCI Extension Set Frequency Tuning

0xFF

0x040F

HCI Extension Save Frequency Tuning

0xFF

0x0410

HCI Extension Set Max DTM Tx Power

0xFF

0x0411

HCI Extension Map PM IO Port

0xFF

0x0412

HCI Extension Disconnect Immediate

0xFF

0x0413

HCI Extension Packet Error Rate

0xFF

0x0414

HCI Extension Packet Error Rate by Channel

0xFF

0x0415

HCI Extension Extend RF Range

0xFF

0x0416

0xFF

0x0417

HCI Extension Connection Event Notice

0xFF

0x0418

HCI Extension Halt During RF

0xFF

0x0419

HCI Extension Set Slave Latency Override

0xFF

0x041A

HCI Extension Build Revision

0xFF

0x041B

L2CAP Command Reject

0xFF

0x0481

L2CAP Connection Parameter Update Response

0xFF

0x0493

HCI Extension Advertiser Event Notice

Not supported by HCI; only direct function call is allowed. No event is returned.
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Vendor Specific Events
LE Events

EOGF ESG Event

Opcode

ATT Error Response

0xFF

0x0501

ATT Exchange MTU Request

0xFF

0x0502

ATT Exchange MTU Response

0xFF

0x0503

ATT Find Information Request

0xFF

0x0504

ATT Find Information Request

0xFF

0x0505

ATT Find By Type Value Request

0xFF

0x0506

ATT Find By Type Value Response

0xFF

0x0507

ATT Read By Type Request

0xFF

0x0508

ATT Read By Type Response

0xFF

0x0509

ATT Read Request

0xFF

0x050A

ATT Read Response

0xFF

0x050B

ATT Read Blob Request

0xFF

0x050C

ATT Read Blob Response

0xFF

0x050D

ATT Read Multiple Request

0xFF

0x050E

ATT Read Multiple Response

0xFF

0x050F

ATT Read By Group Type Request

0xFF

0x0510

ATT Read By Group Type Response

0xFF

0x0511

ATT Write Request

0xFF

0x0512

ATT Write Response

0xFF

0x0513

ATT Prepare Write Request

0xFF

0x0516

ATT Prepare Write Response

0xFF

0x0517

ATT Execute Write Request

0xFF

0x0518

ATT Execute Write Response

0xFF

0x0519

ATT Handle Value Notification

0xFF

0x051B

ATT Handle Value Indication

0xFF

0x051D

ATT Handle Value Confirmation

0xFF

0x051E

GAP Device Init Done

0xFF

0x0600

GAP Device Discovery

0xFF

0x0601

GAP Advert Data Update Done

0xFF

0x0602

GAP Make Discoverable Done

0xFF

0x0603

GAP End Discoverable Done

0xFF

0x0604

GAP Link Established

0xFF

0x0605

GAP Link Terminated

0xFF

0x0606

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Vendor Specific Events
LE Events

EOGF ESG Event

Opcode

GAP Link Parameter Update

0xFF

0x0607

GAP Random Address Changed

0xFF

0x0608

GAP Signature Updated

0xFF

0x0609

GAP Authentication Complete

0xFF

0x060A

GAP Passkey Needed

0xFF

0x060B

GAP Slave Requested Security

0xFF

0x060C

GAP Device Information

0xFF

0x060D

GAP Bond Complete

0xFF

0x060E

GAP Pairing Requested

0xFF

0x060F

Command Status

0xFF

127

0x067F

Table 7: Vendor Specific Events

You will note that there are two EOGF values for Profiles. At this time, no profiles are defined
well enough to document here. These values are defined in anticipation of not only needing
large numbers of profiles and their commands, but also of needing the direction the command
is travelling when embedded in an HCI Command or Event. You can see that ATT does not
have this issue as these commands are already defined using even values for commands and
odd values for events, and thus, direction is distinguishable. For profiles, it is not yet known how
the commands and events will be defined.

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9.3 Request and Response Tunneling
In the Client/Server model defined and supported by the BLE stack, the Client sends Requests
to the Server and the Server sends Responses back to the Client. The Requests sent by the
Client may be handled by a Server on the same device, or they may travel OTA to the Server on
another device. Similarly, the Response sent by the Server may be handled by a Client on the
same device, or may be sent OTA to a Client on another device from which the request came.
But in either case, as long as the Requests and Responses remain within the scope of the BLE
stack software (i.e. the BLE Server database is on the device), the BLE stack remains
unconcerned about whether the Requests and Responses are sent/received by the same
device or are from another device. Please see Figure 8.

Figure 8: Request/Response with Server Database in BLE Stack
However, when using the Network Processor Configuration with HCI such that the Server
database is not located on the device, then Requests and Reponses have to be mapped into
HCI Commands and Events. The HCI is specified such that only Commands are sent from the
Host to the Controller, and only Events are sent from the Controller to the Host. If the Server
database is located on say a PC, then when an OTA Request is received by the Server device,
it must be sent to the PC via the HCI. Even though the Request started out on one end as an
HCI Command, it must be provided to the remote PC as an HCI event on the other. Similarly,
when the PC sends the Response on one end, which will be an HCI Event to the remote PC on
the other, it must be sent to the device as an HCI Command. Thus, the Request, which starts
out as an HCI Command, must be embedded in an HCI Event when received by the remote PC,
and the Response, which starts out as an HCI Command, must be embedded in an HCI Event
when received by the remote PC. In this way, Requests and Responses are being tunneled in
HCI Commands and Events. Please see Figure 9.

Figure 9: Request/Response with Server Database not in BLE Stack
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10. HCI Extension Vendor Specific Commands
In addition to the BLE HCI commands, the following HCI Extension vendor specific commands are also
available.

10.1 HCI Extension Set Receiver Gain
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_SetRxGainCmd

0xFC00

rxGain

Status

Description
This command is used to set the RF receiver gain. The default system value for this feature is standard
receiver gain.
Command Parameters
rxGain: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_RX_GAIN_STD

0x01

HCI_EXT_RX_GAIN_HIGH

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_SetRxGainCmd has completed, a vendor specific Command Complete event shall
be generated.

10.2 HCI Extension Set Transmitter Power
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_SetTxPowerCmd

0xFC01

txPower

Status

Description
This command is used to set the RF transmitter output power. The default system value for this feature
is 0 dBm. Note that a setting of 4dBm is only allowed for the CC2540.
Command Parameters
txPower: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_TX_POWER_MINUS_23_DBM

0x01

HCI_EXT_TX_POWER_MINUS_6_DBM
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Value

Parameter Description

0x02

HCI_EXT_TX_POWER_0_DBM

0x03

HCI_EXT_TX_POWER_4_DBM (CC2540 only)

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_SetTxPowerCmd has completed, a vendor specific Command Complete event
shall be generated.

10.3 HCI Extension One Packet Per Event
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_OnePacketPerEventCmd

0xFC02

control

Status

Description
This command is used to configure the Link Layer to only allow one packet per connection event. The
default system value for this feature is disabled.
This command can be used to tradeoff throughput and power consumption during a connection. When
enabled, power can be conserved during a connection by limiting the number of packets per connection
event to one, at the expense of more limited throughput. When disabled, the number of packets
transferred during a connection event is not limited, at the expense of higher power consumption.
Command Parameters
control: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_DISABLE_ONE_PKT_PER_EVT

0x01

HCI_EXT_ENABLE_ONE_PKT_PER_EVT

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_OnePacketPerEventCmd has completed, a vendor specific Command Complete
event shall be generated.

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10.4 HCI Extension Clock Divide On Halt
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_ClkDivOnHaltCmd

0xFC03

control

Status

Description
This command is used to configure the Link Layer to divide the system clock when the MCU is halted
during a radio operation. The default system value for this feature is disabled.
Note: This command is only valid when the MCU is halted during RF operation (please see
HCI_EXT_HaltDuringRfCmd).
Command Parameters
control: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_DISABLE_CLK_DIVIDE_ON_HALT

0x01

HCI_EXT_ENABLE_CLK_DIVIDE_ON_HALT

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_ClkDivOnHaltCmd has completed, a vendor specific Command Complete event
shall be generated.

10.5 HCI Extension Declare NV Usage
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_DeclareNvUsageCmd

0xFC04

mode

Status

Description
This command is used to inform the Controller whether the Host is using NV memory during BLE
operations. The default system value for this feature is NV In Use.
When the NV is not in use during BLE operations, the Controller is able to bypass internal checks that
reduce overhead processing, thereby reducing average power consumption.
Note: This command is only allowed when the BLE Controller is idle.
Note: Using NV when declaring it is not in use may result in a hung BLE Connection.

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Command Parameters
control: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_NV_NOT_IN_USE

0x01

HCI_EXT_NV_IN_USE

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_DeclareNvUsageCmd has completed, a vendor specific Command Complete
event shall be generated.

10.6 HCI Extension Decrypt
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_DecryptCmd

0xFC05

key, encText

Status

Description
This command is used to decrypt encrypted text using AES128.
Command Parameters
key: (16 bytes)
Value

Parameter Description

0xXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXX

128 bit key for the decryption of the data given in the command.
The most significant octet of the data corresponds to key[0] using
the notation specified in FIPS 197.

encText: (16 bytes)
Value

Parameter Description

0xXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXX

128 bit encrypted data to be decrypted. The most significant octet
of the key corresponds to key[0] using the notation specified in
FIPS 197.

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

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Event(s) Generated
When the HCI_EXT_DecryptCmd has completed, a vendor specific Command Complete event shall
be generated.

10.7 HCI Extension Set Local Supported Features
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_SetLocalSupportedFeaturesCmd

0xFC06

localFeatures

Status

Description
This command is used to set the Controller’s Local Supported Features. For a complete list of
supported LE features, please see [1], Part B, Section 4.6.
Note: This command can be issued either before or after one or more connections are formed.
However, the local features set in this manner are only effective if performed before a Feature
Exchange Procedure has been initiated by the Master. Once this control procedure has been completed
for a particular connection, only the exchanged feature set for that connection will be used.
Command Parameters
localFeatures: (8 bytes)
Value

Parameter Description

0x0000000000000001

Encryption Feature

0xFFFFFFFFFFFFFFFE

Reserved for future use

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_SetLocalSupportedFeaturesCmd has completed, a vendor specific Command
Complete event shall be generated.

10.8 HCI Extension Set Fast Transmit Response Time
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_SetFastTxResponseTimeCmd

0xFC07

control

Status

Description
This command is used to configure the Link Layer fast transmit response time feature. The default
system value for this feature is enabled.
Note: This command is only valid for a Slave controller.

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When the Host transmits data, the controller (by default) ensures the packet is sent over the LL
connection with as little delay as possible, even when the connection is configured to use slave latency.
That is, the transmit response time will tend to be no longer than the connection interval. This results in
lower power savings since the LL may need to wake to transmit during connection events that would
normally have been skipped. If saving power is more critical than fast transmit response time, then this
feature can be disabled using this command. When disabled, the transmit response time will be no
longer than slave latency + 1 times the connection interval.
Command Parameters
control: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_DISABLE_FAST_TX_RESP_TIME

0x01

HCI_EXT_ENABLE_FAST_TX_RESP_TIME

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_SetFastTxResponseTimeCmd has completed, a vendor specific Command
Complete event shall be generated.

10.9 HCI Extension Modem Test Transmit
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_ModemTestTxCmd

0xFC08

cwMode, txFreq

Status

Description
This API is used to start a continuous transmitter modem test, using either a modulated or unmodulated
carrier wave tone, at the frequency that corresponds to the specified RF channel. Use the
HCI_EXT_EndModemTest command to end the test.
Note: The RF channel, not the BLE frequency, is specified! You can obtain the RF channel from the
BLE frequency as follows: RF Channel = (BLE Frequency – 2402) / 2.
Note: When the HCI_EXT_EndModemTest is issued to stop this test, a Controller reset will take place.
Note: The device will transmit at the default output power (0 dBm) unless changed by
HCI_EXT_SetTxPowerCmd.
Note: This modem test can be used to satisfy in part radio regulation requirements as specific in
standards such as ARIB STD-T66.

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Command Parameters
cwMode: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_TX_MODULATED_CARRIER

0x01

HCI_EXT_TX_UNMODULATED_CARRIER

t
txFreq: (1 bytes)
Value

Parameter Description

0..39

RF channel of transmit frequency.

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_ModemTestTxCmd has completed, a vendor specific Command Complete event
shall be generated.

10.10 HCI Extension Modem Hop Test Transmit
Command

Opcode

HCI_EXT_ModemHopTestTxCmd

0xFC09

Command Parameters

Return Parameters
Status

Description
This API is used to start a continuous transmitter direct test mode test using a modulated carrier wave
and transmitting a 37 byte packet of pseudo-random 9 bit data. A packet is transmitted on a different
frequency (linearly stepping through all RF channels 0..39) every 625us. Use the
HCI_EXT_EndModemTest command to end the test.
Note: When the HCI_EXT_EndModemTest is issued to stop this test, a Controller reset will take place.
Note: The device will transmit at the default output power (0 dBm) unless changed by
HCI_EXT_SetTxPowerCmd.
Note: This modem test can be used to satisfy in part radio regulation requirements as specific in
standards such as ARIB STD-T66.
Command Parameters:
None

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Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_ModemHopTestTxCmd has completed, a vendor specific Command Complete
event shall be generated.

10.11 HCI Extension Modem Test Receive
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_ModemTestRxCmd

0xFC0A

rxFreq

Status

Description
This API is used to start a continuous receiver modem test using a modulated carrier wave tone, at the
frequency that corresponds to the specific RF channel. Any received data is discarded. Receiver gain
may be adjusted using the HCI_EXT_SetRxGain command. RSSI may be read during this test by using
the HCI_ReadRssi command. Use HCI_EXT_EndModemTest command to end the test.
Note: The RF channel, not the BLE frequency, is specified! You can obtain the RF channel from the
BLE frequency as follows: RF Channel = (BLE Frequency – 2402) / 2.
Note: When the HCI_EXT_EndModemTest is issued to stop this test, a Controller reset will take place.
Note: This modem test can be used to satisfy in part radio regulation requirements as specific in
standards such as ARIB STD-T66.
Command Parameters
rxFreq: (1 bytes)
Value

Parameter Description

0..39

RF channel of receive frequency.

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_ModemTestRxCmd has completed, a vendor specific Command Complete event
shall be generated.

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10.12 HCI Extension End Modem Test
Command

Opcode

HCI_EXT_EndModemTestCmd

0xFC0B

Command Parameters

Return Parameters
Status

Description
This API is used to shutdown a modem test. A Controller reset will take place.
Command Parameters
None
Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_EndModemTestCmd has completed, a vendor specific Command Complete
event shall be generated.

10.13 HCI Extension Set BDADDR
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_SetBDADDRCmd

0xFC0C

bdAddr

Status

Description
This command is used to set this device’s BLE address (BDADDR). This address will override the
device’s address determined when the device is reset (i.e. a hardware reset, not an HCI Controller
Reset). To restore the device’s initialized address, issue this command with an invalid address.
Note: This command is only allowed when the Controller is in the Standby state.
Command Parameters
bdAddr: (6 bytes)
Value

Parameter Description

0x000000000000..

Valid BLE device address.

0xFFFFFFFFFFFE
0xFFFFFFFFFFFF

Invalid BLE device address. Used to restore the device address to
that which was determined at initialization.

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Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_SetBDADDRCmd has completed, a vendor specific Command Complete event
shall be generated.

10.14 HCI Extension Set SCA
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_SetSCACmd

0xFC0D

scaInPPM

Status

Description
This command is used to set this device’s Sleep Clock Accuracy (SCA) value, in parts per million
(PPM), from 0 to 500. For a Master device, the value is converted to one of eight ordinal values
representing a SCA range (per [1], Volume 6, Part B, Section 2.3.3.1, Table 2.2), which will be used
when a connection is created. For a Slave device, the value is directly used. The system default value
for a Master and Slave device is 50ppm and 40ppm, respectively.
Note: This command is only allowed when the device is not in a connection.
Note: The device’s SCA value remains unaffected by an HCI Reset.
Command Parameters
scaInPPM: (2 bytes)
Value

Parameter Description

0..0x1F4

Valid SCA value.

0x01F5..0xFFFF

Invalid SCA value.

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_SetSCACmd has completed, a vendor specific Command Complete event shall be
generated.

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10.15 HCI Extension Enable PTM
Command

Opcode

HCI_EXT_EnablePTMCmd

0xFC0E

Command Parameters

Return Parameters
Status

Description
This command is used to enable Production Test Mode (PTM). This mode is used by the customer
during assembly of their product to allow limited access to the BLE Controller for testing and
configuration. This command is only available when the BLE Controller is built without external access
to the Controller (i.e. when no transport interface such as RS232 is permitted). This mode will remain
enabled until the device is reset. Please see the related application note for additional details.
Note: This command is only allowed as a direct function call, and is only intended to be used by an
embedded application. No vendor specific Command Complete event will be generated.
Command Parameters
None
Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

Event(s) Generated
When the HCI_EXT_EnablePTMCmd has completed, it will simply return. No vendor specific
Command Complete event will be generated.

10.16 HCI Extension Set Frequency Tuning
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_SetFreqTuneCmd

0xFC0F

step

Status

Description
This PTM-only command is used to set this device’s Frequency Tuning either up one step or down one
step. When the current setting is already at its max value, then stepping up will have no effect. When
the current setting is already at its min value, then stepping down will have no effect. This setting will
only remain in effect until the device is reset unless HCI_EXT_SaveFreqTuneCmd is used to save it in
non-volatile memory.

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Command Parameters
mode: (1 bytes)
Value

Parameter Description

HCI_PTM_SET_FREQ_TUNE_DOWN

HCI_PTM_SET_FREQ_TUNE_UP

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_SetFreqTuneCmd has completed, a vendor specific Command Complete event
shall be generated.

10.17 HCI Extension Save Frequency Tuning
Command

Opcode

HCI_EXT_SaveFreqTuneCmd

0xFC10

Command Parameters

Return Parameters
Status

Description
This PTM-only command is used to save this device’s Frequency Tuning setting in non-volatile memory.
This setting will be used by the BLE Controller upon reset, and when waking from Sleep.
Command Parameters
None
Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_SaveFreqTuneCmd has completed, a vendor specific Command Complete event
shall be generated.

10.18 HCI Extension Set Max DTM Transmitter Power
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_SetMaxDtmTxPowerCmd

0xFC11

txPower

Status
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Description
This command is used to override the RF transmitter output power used by the Direct Test Mode
(DTM). Normally, the maximum transmitter output power setting used by DTM is the maximum
transmitter output power setting for the device (i.e. 4 dBm for the CC2540; 0 dBm for the CC2541). This
command will change the value used by DTM.
Note: When DTM is ended by a call to HCI_LE_TestEndCmd, or a HCI_Reset is used, the transmitter
output power setting is restored to the default value of 0 dBm.
Command Parameters
txPower: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_TX_POWER_MINUS_23_DBM

0x01

HCI_EXT_TX_POWER_MINUS_6_DBM

0x02

HCI_EXT_TX_POWER_0_DBM

0x03

HCI_EXT_TX_POWER_4_DBM (CC2540 only)

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_SetMaxDtmTxPowerCmd has completed, a vendor specific Command Complete
event shall be generated.

10.19 HCI Extension Map PM IO Port
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_MapPmInOutPortCmd

0xFC12

ioPort, ioPin

Status

Description
This command is used to configure and map a CC254x I/O Port as a General-Purpose I/O (GPIO)
output signal that reflects the Power Management (PM) state of the CC254x device. The GPIO output
will be High on Wake, and Low upon entering Sleep. This feature can be disabled by specifying
HCI_EXT_PM_IO_PORT_NONE for the ioPort (ioPin is then ignored). The system default value upon
hardware reset is disabled.
This command can be used to control an external DC-DC Converter (its actual intent) such has the TI
TPS62730 (or any similar converter that works the same way). This command should be used with
extreme care as it will override how the Port/Pin was previously configured! This includes the
mapping of Port 0 pins to 32kHz clock output, Analog I/O, UART, Timers; Port 1 pins to Observables,
Digital Regulator status, UART, Timers; Port 2 pins to an external 32kHz XOSC. The selected Port/Pin
will be configured as an output GPIO with interrupts masked. Careless use can result in a
reconfiguration that could disrupt the system. For example, if the Port/Pin is being used as part of the
serial interface for the device, the Port/Pin will be reconfigured from its original Peripheral function to a
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GPIO, disrupting the serial port. It is therefore the user’s responsibility to ensure the selected
Port/Pin does not cause any conflicts in the system.
Note: Only Pins 0, 3 and 4 are valid for Port 2 since Pins 1 and 2 are mapped to debugger signals DD
and DC.
Note: Port/Pin signal change will obviously only occur when Power Savings is enabled.
Note: The CC254xEM modules map the TI TPS62730 control signal to P1.2, which happens to map to
the SmartRF05EB LCD Chip Select. Thus, the LCD can’t be used when setup this way.
Command Parameters
ioPort: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_PM_IO_PORT_P0

0x01

HCI_EXT_PM_IO_PORT_P1

0x02

HCI_EXT_PM_IO_PORT_P2

0xFF

HCI_EXT_PM_IO_PORT_NONE

ioPin: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_PM_IO_PORT_PIN0

0x01

HCI_EXT_PM_IO_PORT_PIN1

0x02

HCI_EXT_PM_IO_PORT_PIN2

0x03

HCI_EXT_PM_IO_PORT_PIN3

0x04

HCI_EXT_PM_IO_PORT_PIN4

0x05

HCI_EXT_PM_IO_PORT_PIN5

0x06

HCI_EXT_PM_IO_PORT_PIN6

0x07

HCI_EXT_PM_IO_PORT_PIN7

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_MapPmIoPortCmd has completed, a vendor specific Command Complete event
shall be generated.

10.20 HCI Extension Disconnect Immediate
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_DisconnectImmedCmd

0xFC13

connHandle

Status
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Description
This command is used to disconnect a connection immediately. This command can be useful for when
a connection needs to be ended without the latency associated with the normal BLE Controller
Terminate control procedure.
Note that the Host issuing the command will still receive the HCI Disconnection Complete event with a
Reason status of 0x16 (i.e. Connection Terminated by Local Host), followed by an HCI Vendor Specific
Event.
Command Parameters
connHandle: (2 bytes)
Value

Parameter Description
Connection Handle to be used to identify a connection.
Note: 0x0F00 – 0x0FFF are reserved for future use.

0x0000 .. 0x0EFF
Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_DisconnectImmedCmd has completed, an HCI Disconnection Complete event
followed by a vendor specific Command Complete event shall be generated.

10.21 HCI Extension Packet Error Rate
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_PacketErrorRateCmd

0xFC14

connHandle, command

Status

Description
This command is used to Reset or Read the Packet Error Rate counters for a connection. When Reset,
the counters are cleared; when Read, the total number of packets received, the number of packets
received with a CRC error, the number of events, and the number of missed events are returned. The
system default value upon hardware reset is Reset.
Note: The counters are only 16 bits. At the shortest connection interval, this provides a little over 8
minutes of data.
Command Parameters
connHandle: (2 bytes)
Value
0x0000 .. 0x0EFF

Parameter Description
Connection Handle to be used to identify a connection.
Note: 0x0F00 – 0x0FFF are reserved for future use.

command: (1 byte)
Value

Parameter Description
0x00

HCI_EXT_PER_RESET
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Value

Parameter Description
0x01

HCI_EXT_PER_READ

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_PacketErrorRateCmd has completed, a vendor specific Command Complete
event followed by a vendor specific Command Complete event shall be generated.

10.22 HCI Extension Packet Error Rate By Channel
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_PERbyChanCmd

0xFC15

connHandle, *perByChan

Status

Description
This command is used to start or end Packet Error Rate by Channel counter accumulation for a
connection, and can be used by an application to make Coexistence assessments. Based on the
results, an application can perform an Update Channel Classification command to limit channel
interference from other wireless standards. If *perByChan is NULL, counter accumulation will be
discontinued. If *perByChan is not NULL, then it is assumed that there is sufficient memory for the
PER data, based on the following type definition perByChan_t located in ll.h:
#define LL_MAX_NUM_DATA_CHAN 37
// Packet Error Rate Information By Channel
typedef struct
{

uint16 numPkts[ LL_MAX_NUM_DATA_CHAN ];

uint16 numCrcErr[ LL_MAX_NUM_DATA_CHAN ];

} perByChan_t;

Note: This command is only allowed as a direct function call, and is only intended to be used by an
embedded application.
Note: It is the user’s responsibility to ensure there is sufficient memory allocated! The user is also
responsible for maintaining the counters, clearing them if required before starting accumulation.
Note: As indicated, the counters are 16 bits. At the shortest connection interval, this provides a bit over 8
minutes of data.
Note: This command can be used in combination with HCI_EXT_PacketErrorRateCmd.
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Command Parameters
connHandle: (2 bytes)
Value
0x0000 .. 0x0EFF

Parameter Description
Connection Handle to be used to identify a connection.
Note: 0x0F00 – 0x0FFF are reserved for future use.

*perByChan: (1 byte)
Value

Parameter Description
NULL
Non-NULL

End counter accumulation.
Start counter accumulation by channel.

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_PERbyChanCmd has completed, a vendor specific Command Complete event
shall be generated.

10.23 HCI Extension Extend RF Range
Command

Opcode

HCI_EXT_ExtendRfRangeCmd

0xFC16

Command Parameters

Return Parameters
Status

Description
This command is used to configure the CC254x to automatically control the TI CC2590 2.4GHz RF
Front End device. Using the CC2590 allows a maximum Tx output power of 10dBm (the specified BLE
maximum), and increases Rx sensitivity, thus extending the RF range of the CC254x. Once this
command is used, the configuration will not change unless the CC254x is reset.
Automatic control of the CC2590 is achieved using the CC254x Observables, which take control of
GPIO P1.2 and P1.3. The GPIO P1.1 is also taken to control RF gain. These GPIOs are therefore not
available when using this feature.
This command can be used in combination with HCI_EXT_SetTxPowerCmd, resulting in a cumulative
Tx output power. Therefore, for the CC2540 only, attempting to set Tx output power to 4dBm (i.e. using
HCI_EXT_TX_POWER_4_DBM), will instead set the Tx output power to 0dBm.
The command HCI_EXT_SetRxGainCmd should be used to set the Rx gain per usual. That is, the
CC254x Rx Standard/High gain setting is mirrored to the CC2590 High Gain Mode (HGM) Low/High
setting.
When this command is used, the CC254x Tx output power and Rx gain will retain their previous values,
unless the previous Tx output power value was set to 4dBm on the CC2540. In this case, as previously
explained, the value will be set to 0dBm.
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Command Parameters
None
Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_ExtendRfRangeCmd has completed, a vendor specific Command Complete
event shall be generated.

10.24 HCI Extension Advertiser Event Notice
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_AdvEventNoticeCmd

0xFC17

taskID, taskEvent

Status

Description
This command is used to configure the CC254x to set a user task’s event when an Advertisement event
completes. Only a single task event value is allowed (i.e. must be a power of two). A non-zero taskEvent
value is taken to be "enable", while a zero valued taskEvent is taken to be "disable". The default value is
“disable”.
Note: This command is only allowed as a direct function call, and is only intended to be used by an
embedded application. No vendor specific Command Complete event will be generated.
Command Parameters
taskID: (1 byte)
Value
0x00..0xFF

Parameter Description
OSAL task ID.

taskEvent: (2 bytes)
Value
0

2 ..2

Parameter Description
15
OSAL task event. Note that 2 is a reserved system task
event.

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

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Event(s) Generated
When the HCI_EXT_AdvEventNoticeCmd has completed, it will simply return. No vendor specific
Command Complete event will be generated.

10.25 HCI Extension Connection Event Notice
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_ConnEventNoticeCmd

0xFC18

taskID, taskEvent

Status

Description
This command is used to configure the CC254x to set a user task’s event when a Connection event
completes. Only a single task event value is allowed (i.e. must be a power of two). A non-zero taskEvent
value is taken to be "enable", while a zero valued taskEvent is taken to be "disable". The default value is
“disable”.
Note: Only a Slave connection is supported.
Note: This command is only allowed as a direct function call, and is only intended to be used by an
embedded application. No vendor specific Command Complete event will be generated.
Command Parameters
taskID: (1 byte)
Value
0x00..0xFF

Parameter Description
OSAL task ID.

taskEvent: (2 bytes)
Value
0

2 ..2

Parameter Description
15
OSAL task event. Note that 2 is a reserved system task
event.

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x02

HCI_ERROR_CODE_UNKNOWN_CONN_ID

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

Event(s) Generated
When the HCI_EXT_ConnEventNoticeCmd has completed, it will simply return. No vendor specific
Command Complete event will be generated.

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10.26 HCI Extension Halt During RF
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_HaltDuringRfCmd

0xFC19

mode

Status

Description
This command is used to enable or disable the halting of the MCU while the radio is operating. When
the MCU is not halted, the peak current is higher, but the system is more responsive. When the MCU is
halted, the peak current consumption is reduced, but the system is less responsive. The default value is
Enable.
Note: This command will be disallowed if there are any active BLE connections.
Note: The HCI_EXT_ClkDivOnHaltCmd will be disallowed if the halt during RF is not enabled.
Command Parameters
mode: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_HALT_DURING_RF_DISABLE

0x01

HCI_EXT_HALT_DURING_RF_ENABLE

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_HaltDuringRfCmd has completed, a vendor specific Command Complete event
shall be generated.

10.27 HCI Extension Set Slave Latency Override
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_SetSlaveLatencyOverrideCmd

0xFC1A

mode

Status

Description
This command is used to enable or disable the Slave Latency Override, allowing the user to ensure that
Slave Latency is not applied even though it is active. The default value is Disable.
Note: This command will be disallowed for no connection, or the connection is not in the Slave role.
Command Parameters
mode: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_DISABLE_SL_OVERRIDE
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Value

Parameter Description

0x01

HCI_EXT_ENABLE_SL_OVERRIDE

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

Event(s) Generated
When the HCI_EXT_SetSlaveLatencyOverrideCmd has completed, a vendor specific Command
Complete event shall be generated.

10.28 HCI Extension Build Revision
Command

Opcode

Command Parameters

Return Parameters

HCI_EXT_BuildRevisionCmd

0xFC1B

mode, userRevNum

Status

Description
This command is used to a) allow the embedded user code to set their own 16 bit revision number, and
b) to read the build revision number of the BLE stack library software. The default value of the user
revision number is zero.
When the user updates a BLE project by adding their own code, they may use this API to set their own
revision number. When called with mode set to HCI_EXT_SET_APP_REVISION, the stack will save
this value. No event will be returned from this API when used this way as it is intended to be called from
within the target itself. Note however that this does not preclude this command from being received via
the HCI. However, no event will be returned.
When this API is used from the HCI, then the second parameter is ignored, and a vendor specific event
is returned with the user’s revision number and the build revision number of the BLE stack.
Command Parameters
mode: (1 byte)
Value

Parameter Description

0x00

HCI_EXT_SET_APP_REVISION

0x01

HCI_EXT_READ_BUILD_REVISION

userRevNum: (2 bytes)
Value
0xXXXX

Parameter Description
Any 16 bit value the application wishes to use as their revision
number.

Return Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS
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Event(s) Generated
When the HCI_EXT_BuildRevisionCmd has completed, a vendor specific Command Complete event
shall be generated, but only when the value of mode is HCI_EXT_READ_BUILD_REVISION.

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11. HCI Extension Vendor Specific Events
The HCI Extension vendor specific commands generate the following vendor specific events.

11.1 HCI Extension Set Receiver Gain
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0400

Status, cmdOpcode

Description
This event is sent to indicate the RF receiver gain has been set, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC00

HCI Extension Set Receiver Gain Command

11.2 HCI Extension Set Transmitter Power
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0401

Status, cmdOpcode

Description
This event is sent to indicate the RF transmitter power has been set, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC01

HCI Extension Set Transmitter Power Command
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11.3 HCI Extension One Packet Per Event
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0402

Status, cmdOpcode

Description
This event is sent to indicate the One Packet Per Event feature has been enabled or disabled, or that
there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC02

HCI Extension One Packet Per Event Command

11.4 HCI Extension Clock Divide On Halt
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0403

Status, cmdOpcode

Description
This event is sent to indicate the Clock Divide On Halt feature has been enabled or disabled, or that
there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC03

HCI Extension Clock Divide On Halt Command
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11.5 HCI Extension Declare NV Usage
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0404

Status, cmdOpcode

Description
This event is sent to indicate the Declare NV Usage feature has been set, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC04

HCI Extension Declare NV Usage Command

11.6 HCI Extension Decrypt
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0405

Status, cmdOpcode, plainTextData

Description
This event is sent to indicate Decryption has completed.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC05

HCI Extension Decrypt Command

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plainTextData: (16 bytes)
Value

Parameter Description

0xXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXX

128 bit decrypted data block. The most significant octet of
plainTextData corresponds to plainTextData [0] using the notation
specified in FIPS 197.

11.7 HCI Extension Set Local Supported Features
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0406

Status, cmdOpcode

Description
This event is sent to indicate the Set Local Supported Features command has completed.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC06

HCI Extension Set Local Supported Features Command

11.8 HCI Extension Set Fast Transmit Response Time
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0407

Status, cmdOpcode

Description
This event is sent to indicate the Set Fast Transmit Response Time feature has been enabled or
disabled, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
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Value

Parameter Description

0xFC07

HCI Extension Set Fast Transmit Response Time Command

11.9 HCI Extension Modem Test Transmit
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0408

Status, cmdOpcode

Description
This event is sent to indicate the Modem Test Transmit test has started, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

0x21

HCI_ERROR_CODE_ROLE_CHANGE_NOT_ALLOWED

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC08

HCI Extension Modem Test Transmit Command

11.10 HCI Extension Modem Hop Test Transmit
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0409

Status, cmdOpcode

Description
This event is sent to indicate the Modem Hop Test Transmit test has started, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x21

HCI_ERROR_CODE_ROLE_CHANGE_NOT_ALLOWED

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC09

HCI Extension Modem Hop Test Transmit Command
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11.11 HCI Extension Modem Test Receive
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x040A

Status, cmdOpcode

Description
This event is sent to indicate the Modem Test Receive test has started, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

0x21

HCI_ERROR_CODE_ROLE_CHANGE_NOT_ALLOWED

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC0A

HCI Extension Modem Test Receive Command

11.12 HCI Extension End Modem Test
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x040B

Status, cmdOpcode

Description
This event is sent to indicate the modem test has been shutdown, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x21

HCI_ERROR_CODE_ROLE_CHANGE_NOT_ALLOWED

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC0B

HCI Extension End Modem Test Command

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11.13 HCI Extension Set BDADDR
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x040C

Status, cmdOpcode

Description
This event is sent to indicate the device’s BLE address has been set, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC0C

HCI Extension Set BDADDR Command

11.14 HCI Extension Set SCA
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x040D

Status, cmdOpcode

Description
This event is sent to indicate the device’s SCA has been set, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC0D

HCI Extension Set SCA Command

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11.15 HCI Extension Enable PTM
There is not a corresponding event opcode (0x040E) and parameters for this command as it is only
allowed as a direct function call by the application software.

11.16 HCI Extension Set Frequency Tuning
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x040F

Status, cmdOpcode

Description
This event is sent to indicate the device’s frequency tuning value has be adjusted one step up or down,
or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC0F

HCI Extension Set Frequency Tuning Command

11.17 HCI Extension Save Frequency Tuning
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0410

Status, cmdOpcode

Description
This event is sent to indicate the device’s current frequency tuning value has been saved to non-volatile
memory, or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

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cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC10

HCI Extension Save Frequency Tuning Command

11.18 HCI Extension Set Max DTM Transmitter Power
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0411

Status, cmdOpcode

Description
This event is sent to indicate the maximum Direct Test Mode (DTM) RF transmitter power has been set,
or that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC11

HCI Extension Set Transmitter Power Command

11.19 HCI Extension Map PM IO Port
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0412

Status, cmdOpcode

Description
This event is sent to indicate the PM IO Port has been configured and mapped, or that there was an
error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

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cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC12

HCI Extension Map PM IO Port Command

11.20 HCI Extension Disconnect Immediate
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0413

Status, cmdOpcode

Description
This event is sent to indicate the Disconnect Immediate command has completed, or that there was an
error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x02

HCI_ERROR_CODE_UNKNOWN_CONN_ID

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC13

HCI Extension Disconnect Immediate Command

11.21 HCI Extension Packet Error Rate
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0414

Status, cmdOpcode, cmdVal, numPkts,
numCrcErr, numEvents, numMissedEvts

Description
This event is sent to indicate the Packet Error Rate Reset or Read command has completed, or that
there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x02

HCI_ERROR_CODE_UNKNOWN_CONN_ID

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED
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0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC14

HCI Extension Packet Error Rate Command

cmdVal: (2 bytes)
Value

Parameter Description

0x00

HCI_EXT_PER_RESET

0x01

HCI_EXT_PER_READ

Note: The following event parameters are for the Read command only.
numPkts: (2 bytes)
Value

Parameter Description

0x0000 .. 0xFFFF

Total number of received packets.

numCrcErr: (2 bytes)
Value

Parameter Description

0x0000 .. 0xFFFF

Number of received packets with CRC error.

numEvents: (2 bytes)
Value

Parameter Description

0x0000 .. 0xFFFF

Number of connection events.

numMissedEvents: (2 bytes)
Value

Parameter Description

0x0000 .. 0xFFFF

Number of missed connection events.

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11.22 HCI Extension Packet Error Rate By Channel
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0415

Status, cmdOpcode

Description
This event is sent to indicate the Packet Error Rate By Channel command has completed, or that there
was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x02

HCI_ERROR_CODE_UNKNOWN_CONN_ID

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC15

HCI Extension Packet Error Rate By Channel Command

11.23 HCI Extension Extend RF Range
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0416

Status, cmdOpcode

Description
This event is sent to indicate the Extend RF Range command has completed.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC16

HCI Extension Extend RF Range Command

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11.24 HCI Extension Advertiser Event Notice
There is not a corresponding event opcode (0x0417) and parameters for this command as it is only
allowed as a direct function call by the application software.

11.25 HCI Extension Connection Event Notice
There is not a corresponding event opcode (0x0418) and parameters for this command as it is only
allowed as a direct function call by the application software.

11.26 HCI Extension Halt During RF
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x0419

Status, cmdOpcode

Description
This event is sent to indicate the Halt During RF feature has been enabled or disabled, or that there was
an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC19

HCI Extension Halt During RF Command

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11.27 HCI Extension Set Slave Latency Override
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x041A

Status, cmdOpcode

Description
This event is sent to indicate the Set Slave Latency Override feature has been enabled or disabled, or
that there was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x0C

HCI_ERROR_CODE_CMD_DISALLOWED

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC1A

HCI Extension Set Slave Latency Override Command

11.28 HCI Extension Build Revision
Event

Opcode

Event Parameters

HCI_Vendor_Specific_Event

0x041B

Status, cmdOpcode, userRevNum,
buildRevNum

Description
This event is sent to indicate the user revision number and the build revision of the stack, or that there
was an error.
Event Parameters
Status: (1 byte)
Value

Parameter Description

0x00

HCI_SUCCESS

0x12

HCI_ERROR_CODE_INVALID_HCI_CMD_PARAMS

cmdOpcode: (2 bytes)
Value

Parameter Description

0xFC1B

HCI Extension Build Revision Command

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userRevNum: (2 bytes)
Value

Parameter Description

0xXXXX

The user revision number set by the application software. If no
value was ever set, than 0x0000.

buildRevNum: (2 bytes)
Value

Parameter Description

0xXXXX

The build revision number of the BLE stack.

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12. GAP Vendor Specific Commands
12.1 GAP Device Initialization
Command

Opcode

Command Parameters

Return Parameters

GAP_DeviceInit

0xFE00

profileRole,
maxScanResponses, IRK,
CSRK, signCounter

Status

Description:
This command is used to setup the device in a GAP Role and should only be called once per reboot. To
enable multiple combinations setup multiple GAP Roles (profileRole parameter).
Multiple Role settings examples:
 GAP_PROFILE_PERIPHERAL and GAP_PROFILE_BROADCASTER – allows a connection and
advertising (non-connectable) at the same time.
 GAP_PROFILE_PERIPHERAL and GAP_PROFILE_OBSERVER – allows a connection (with
master) and scanning at the same time.
 GAP_PROFILE_PERIPHERAL, GAP_PROFILE_OBSERVER and GAP_PROFILE_BROADCASTER
– allows a connection (with master) and scanning or advertising at the same time.
 GAP_PROFILE_CENTRAL and GAP_PROFILE_BROADCASTER
advertising (non-connectable) at the same time.

– allows connections and

Command Parameters:
profileRole: Bit Mask (1 octet)
Value

Parameter Description

0x01

GAP_PROFILE_BROADCASTER

0x02

GAP_PROFILE_OBSERVER

0x04

GAP_PROFILE_PERIPHERAL

0x08

GAP_PROFILE_CENTRAL

maxScanResponses: (1 octet)
Range

Parameter Description

0 – 0xFF

Central or Observer only: The device will allocate buffer
space for received advertisement packets. The default is
3. The larger the number, the more RAM that is needed
and maintained.

IRK: (16 octets)
Range

Parameter Description
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Range

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

16 byte Identity Resolving Key (IRK). If this value is all
0’s, the GAP will randomly generate all 16 bytes. This
key is used to generate Resolvable Private Addresses.

CSRK: (16 octets)
Range

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

16 byte Connection Signature Resolving Key (CSRK). If
this value is all 0’s, the GAP will randomly generate all 16
bytes. This key is used to generate data Signatures.

signCounter: (4 octets)
Range

Parameter Description

0x00000000 – 0xFFFFFFFF

32 bit Signature Counter. Initial signature counter.

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

INVALIDPARAMETER

Event(s) Generated:
When device initialization is received, the host will send the HCI Ext Command Status Event with the
Status parameter. When initialization task is complete, the host will send the GAP Device Init Done
Event.

12.2 GAP Configure Device Address
Command

Opcode

Command Parameters

Return Parameters

GAP_ConfigDeviceAddr

0xFE03

addrType, Addr

Status

Description:
Send this command to set the device’s address type. If ADDRTYPE_PRIVATE_RESOLVE is selected,
the address will change periodically.

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Command Parameters:
addrType: (1 octet)
Value

Parameter Description

ADDRTYPE_PUBLIC

ADDRTYPE_STATIC

ADDRTYPE_PRIVATE_NONRESOLVE

ADDRTYPE_PRIVATE_RESOLVE

Addr: (6 octet)
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

Intended address. Only used with ADDRTYPE_STATIC
or ADDRTYPE_PRIVATE_NONRESOLVE.

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

INVALIDPARAMETER

0x10

GAP_DeviceInit must be completed first.

0x12

Address type can’t be change during an active
connection.

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter. If ADDRTYPE_PRIVATE_RESOLVE addrType is selected, the GAP Random Address
Changed Event will be generated when the address is automatically updated.

12.3 GAP Device Discovery Request
Command

Opcode

Command Parameters

Return Parameters

GAP_DeviceDiscoveryRequest

0xFE04

mode, activeScan, whiteList

Status

Description:
Send this command to start a scan for advertisement packets. This command is valid for a central or a
peripheral device.

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Command Parameters:
mode: (1 octet)
Value

Parameter Description

Non-Discoverable Scan

General Mode Scan

Limited Mode Scan

Scan for all devices

activeScan: (1 octet)
Value

Parameter Description

Turn off active scanning (SCAN_REQ)

Turn on active scanning (SCAN_REQ)

whiteList: (1 octet)
Value

Parameter Description

Don’t use the white list during a scan

Use the white list during a scan

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x11

Scan is not available.

0x12

Invalid profile role.

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter. During the scan, the device will generate GAP Device Information Events for advertising
devices, then issue a GAP Device Discovery Event when the scan is completed.

12.4 GAP Device Discovery Cancel
Command

Opcode

GAP_DeviceDiscoveryCancel

0xFE05

Command Parameters

Return Parameters
Status

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Description:
Send this command to end a scan for advertisement packets. This command is valid for a central or a
peripheral device.
Command Parameters:
None

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x11

Scan is not available.

0x12

Invalid profile role.

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter, then issue a GAP Device Discovery Event to display the scan progress since the start of the
scan.

12.5 GAP Make Discoverable
Command

Opcode

Command Parameters

Return Parameters

GAP_MakeDiscoverable

0xFE06

eventType, initiatorAddrType,
initiatorAddr, channelMap,
filterPolicy

Status

Description:
Send this command to start the device advertising.
Command Parameters:
eventType: (1 octet)
Value

Parameter Description

Connectable undirected advertisement

Connectable directed advertisement
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Value

Parameter Description

Discoverable undirected advertisement

Non-connectable undirected advertisement

initiatorAddrType: (1 octet)
Value

Parameter Description

ADDRTYPE_PUBLIC

ADDRTYPE_STATIC

ADDRTYPE_PRIVATE_NONRESOLVE

ADDRTYPE_PRIVATE_RESOLVE

initiatorAddr: (6 octet)
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

Intended address. Only used for directed advertisments

channelMap: Bit Mask (1 octet)
Bit Definitions

Parameter Description

Channel 37

Channel 38

Channel 39

3–7

reserved

filterPolicy: (1 octet)
Value

Parameter Description

Allow scan requests from any, allow connect request from
any.

Allow scan requests from white list only, allow connect
request from any.

Allow scan requests from any, allow connect request from
white list only.

Allow scan requests from white list only, allow connect
requests from white list only.

4 – 0xFF

reserved

Return Parameters:
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Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x10

Advertising data isn’t setup.

0x11

Not available at this time.

0x12

Invalid profile role.

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter, then, when the device starts advertising the GAP Make Discoverable Done Event is
generated. When advertising is completed (limited mode advertising has a time limit), the GAP End
Discoverable Event is generated.

12.6 GAP Update Advertising Data
Command

Opcode

Command Parameters

Return Parameters

GAP_UpdateAdvertisingData

0xFE07

adType, dataLen, advertData

Status

Description:
Send this command to set the raw advertising or scan response data.
Command Parameters:
adType: (1 octet)
Value

Parameter Description

SCAN_RSP data

Advertisement data

dataLen: (1 octet)
Range

Parameter Description

0 – 31

Length of the advertData field (in octets)

advertData: (dataLen octets)
Value

Parameter Description

“XX:XX … XX”

Raw advertising data

Return Parameters:
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Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x12

Invalid profile role.

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter, then, when the task is complete the GAP Advert Data Update Done Event is generated.

12.7 GAP End Discoverable
Command

Opcode

GAP_EndDiscoverable

0xFE08

Command Parameters

Return Parameters
Status

Description:
Send this command to end advertising.
Command Parameters:
None
Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x12

Not advertising

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter, then issue a GAP End Discoverable Done Event advertising has stopped.

12.8 GAP Establish Link Request
Command

Opcode

Command Parameters

Return Parameters
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Command

Opcode

Command Parameters

Return Parameters

GAP_EstablishLinkRequest

0xFE09

highDutyCycle, whiteList,
addrTypePeer, peerAddr

Status

Description:
Send this command to initiate a connection with a peripheral device. Only central devices can issue this
command.
Command Parameters:
highDutyCycle: (1 octet)
Value

Parameter Description

disabled

enabled

A central device may use high duty cycle scan parameters in order to achieve low latency
connection time with a peripheral device using directed link establishment.
whiteList: (1 octet)
Value

Parameter Description

Don’t use the white list

Only connect to a device in the white list

addrTypePeer: (1 octet)
Value

Parameter Description

ADDRTYPE_PUBLIC

ADDRTYPE_STATIC

ADDRTYPE_PRIVATE_NONRESOLVE

ADDRTYPE_PRIVATE_RESOLVE

peerAddr: (6 octet)
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

Peripheral address to connect with.

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS
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0x10

Not ready to perform this action. Performing a
scan.

0x12

Invalid profile role.

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter. When the connection has been made, the GAP Link Established Event will be generated.

12.9 GAP Terminate Link Request
Command

Opcode

Command Parameters

Return Parameters

GAP_TerminateLinkRequest

0xFE0A

connHandle

Status

Description:
Send this command to terminate a connection link, a connection request or all connected links.
Command Parameters:
connHandle: (2 octets)
Value

Parameter Description

0 – 0xFFFD

Existing connection handle to terminate

0xFFFE

Terminate the “Establish Link Request”

0xFFFF

Terminate all links

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x12

No link to terminate

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter. When the connection is terminated, the GAP Link Terminated Event will be generated.

12.10 GAP Authenticate
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Command

Opcode

Command Parameters

Return Parameters

GAP_Authenticate

0xFE0B

connHandle, secReq.ioCaps,
secReq.oobAvailable,
secReq.oob,
secReq.authReq,
secReq.maxEncKeySize,
secReq.keyDist,

Status

pairReq.Enable,
pairReq.ioCaps,
pairReq.oobDataFlag,
pairReq.authReq,
pairReq.maxEncKeySize,
pairReq.keyDist
Description:
Send this command to initiate the pairing process (if Central device), wait for the pairing process (if
Peripheral device), or accept a pairing request (if Peripheral device).
Command Parameters:
connHandle: (2 octets)
Value

Parameter Description

0 – 0xFFFD

Connection handle

secReq.ioCaps: (1 octet)
Value

Parameter Description

Display Only

Display – Yes or No

Keyboard Only

No Input and No Output

Keyboard and Display

5 – 0xFF

reserved

secReq.oobAvailable: (1 octet)
Value

Parameter Description

Out-Of-Bounds (OOB) data is NOT available

Out-Of-Bounds (OOB) data is available

secReq.oob: (16 octets)
Value

Parameter Description
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Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

Out-Of-Bounds data - Initial TK value for the pairing
process.

secReq.authReq: Bit Mask (1 octet)
Bit

Parameter Description

Bonding – exchange and save key information

Reserved

Man-In-The-Middle protection

3–7

Reserved

secReq.maxEncKeySize: (1 octet)
Range

Parameter Description

7 – 16

Maximum encryption key size to support

secReq.keyDist: Bit Mask (1 octet)
Bit

Parameter Description

Slave Encryption Key

Slave Identification Key

Slave Signing Key

Master Encryption Key

Master Identification Key

Master Signing Key

6–7

Reserved

pairReq.Enable: (1 octet)
Value

Parameter Description

Pairing Request hasn’t been received.

Pairing Request has already been received. Peripheral
Role only.

The following fields should be exact same values received in the Pairing Request.
pairReq.ioCaps: (1 octet)
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Value

Parameter Description

Display Only

Display – Yes or No

Keyboard Only

No Input and No Output

Keyboard and Display

5 – 0xFF

reserved

pairReq.oobDataFlag: (1 octet)
Value

Parameter Description

Out-Of-Bounds (OOB) data is NOT available

Out-Of-Bounds (OOB) data is available

pairReq.authReq: Bit Mask (1 octet)
Bit

Parameter Description

Bonding – exchange and save key information

Reserved

Man-In-The-Middle protection

3–7

Reserved

pairReq.maxEncKeySize: (1 octet)
Range

Parameter Description

7 – 16

Maximum encryption key size to support

pairReq.keyDist: Bit Mask (1 octet)
Bit

Parameter Description

Slave Encryption Key

Slave Identification Key

Slave Signing Key

Master Encryption Key

Master Identification Key

Master Signing Key

6–7

Reserved

Return Parameters:
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Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

Invalid Parameter

0x11

Already in this mode

0x12

Incorrect Profile Role

0x14

Invalid connection handle

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter. When the pairing process is complete (either SUCCESS or Failure), a GAP Authentication
Complete Event will be generated. If a passkey is needed, a GAP Passkey Needed Event will be
generated.

12.11 GAP Update Link Parameter Request
Command

Opcode

Command Parameters

Return Parameters

GAP_UpdateLinkParamReq

0xFE11

connectionHandle,
intervalMin, intervalMax,
connLatency, connTimeout

Status

Description:
Send this command to change the Link Layer connection parameters of a connection. This command
can only be used when the local device’s role is Master.
Command Parameters:
connHandle: (2 octets)
Value

Parameter Description

0 – 0xFFFD

Connection handle

intervalMin: (2 octets)
Range
6 - 3200

Minimum value for the connection event interval. This
shall be less than or equal to intervalMax.
Range: 0x0006 to 0x0C80
Time = intervalMin * 1.25 msec
Time Range: 7.5 msec to 4 seconds.
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intervalMax: (2 octets)
Range

Parameter Description

6 - 3200

Maximum value for the connection event interval. This
shall be greater than or equal to intervalMin.
Range: 0x0006 to 0x0C80
Time = intervalMax * 1.25 msec
Time Range: 7.5 msec to 4 seconds.

connLatency: (2 octets)
Range

Parameter Description

0 - 499

Slave latency for the connection in number of connection
events.
Range: 0x0000 to 0x01F3

connTimeout: (2 octets)
Range

Parameter Description

10 - 3200

Supervision timeout for the LE Link.
Range: 0x000A to 0x0C80
Time = connTimeout * 10 msec
Time Range: 100 msec to 32 seconds

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x01

FAILURE

0x02

INVALIDPARAMETER

0x12

bleIncorrectMode

0x14

bleNotConnected

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter. When the connection parameters have been applied by the Controller, the GAP Link
Parameter Update Event will be generated.

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12.12 GAP Passkey Update
Command

Opcode

Command Parameters

Return Parameters

GAP_PasskeyUpdate

0xFE0C

connHandle, passkey

Status

Description:
Send this command when the GAP Passkey Needed Event is received.
passkey needed during the Pairing Process.

This command sends a

Command Parameters:
connHandle: (2 octets)
Value

Parameter Description

0 – 0xFFFD

Connection handle to issue the passkey

passkey: (6 octets)
Value

Parameter Description

“…”

6 character ASCII string of numbers (ex. “019655” )

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x03

Passkey is NULL, or isn’t formatted properly

0x12

Link not found

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter.

12.13 GAP Slave Security Request
Command

Opcode

Command Parameters

Return Parameters

GAP_SlaveSecurityRequest

0xFE0D

connHandle, authReq

Status

Description:
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Send this command, Peripheral Role only, to initiate security from a slave device. This message is also
sent, by the Peripheral, to upgrade security (Pairing) to “Authenticated”, make sure to ask for Man-InThe-Middle (MITM) protection in the “authReq” field.
Command Parameters:
connHandle: (2 octets)
Value

Parameter Description

0 – 0xFFFD

Connection handle

authReq: Bit Mask (1 octet)
Bit

Parameter Description

Bonding – exchange and save key information

Reserved

Man-In-The-Middle protection

3–7

Reserved

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x11

wrong GAP role, must be a Peripheral Role

0x14

Link not found

Event(s) Generated:
When this command is received, the host will send the GAP HCI Ext Command Status Event with the
Status parameter.

12.14 GAP Signable
Command

Opcode

Command Parameters

Return Parameters

GAP_Signable

0xFE0E

connHandle, authenticated,
CSRK, signCounter

Status

Description:
Send this command for a connected and bound device to enable signed data.

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Command Parameters:
connHandle: (2 octets)
Value

Parameter Description

0 – 0xFFFD

Connection handle

authenticated: (1 octet)
Value

Parameter Description

CSRK is not authenticated

CSRK is authenticated

CSRK: (16 octets)
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

CSRK of connected device.

signCounter: (4 octets)
Range

Parameter Description

0x00000000 – 0xFFFFFFFF

32 bit Signature Counter. The connected device’s last
saved sign counter.

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x12

wrong GAP role, must be a Peripheral Role

0x14

Link not found

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter.

12.15 GAP Bond
Command

Opcode

Command Parameters

Return Parameters
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Command

Opcode

Command Parameters

Return Parameters

GAP_Bond

0xFE0F

connHandle, authenticated,
LTK, DIV, rand, LTKsize

Status

Description:
Send this command for a connected and bound device to load the encryption key.
Command Parameters:
connHandle: (2 octets)
Value

Parameter Description

0 – 0xFFFD

Connection handle

authenticated: (1 octet)
Value

Parameter Description

LTK is not authenticated

LTK is authenticated

LTK: (16 octets)
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

16 byte Long Term Key (LTK).

DIV: (2 octets)
Range

Parameter Description

0 – 0xFFFF

The DIV used with this LTK.

rand: (8 octets)
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX”

The 8 byte random number generated for this LTK.

LTKsize: (1 octet)
Range

Parameter Description

7 – 16

Encryption key size
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Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x12

wrong GAP role, must be a Peripheral Role

0x14

Link not found

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter. When both connected devices have setup encryption, the GAP Bond Complete Event is
generated.

12.16 GAP Terminate Auth
Command

Opcode

Command Parameters

Return Parameters

GAP_TerminateAuth

0xFE10

connHandle, reason

Status

Description:
Send this command to terminate a pairing process.
Command Parameters:
connHandle: (2 octets)
Value

Parameter Description

0 – 0xFFFD

Connection handle

reason: (1 octet)
Value

Parameter Description

0xXX

Pairing Fail reason code

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0xXX

Error code

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Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter. When the existing pairing had ended, the GAP Authentication Complete Event with be
generated.

12.17 GAP Set Parameter
Command

Opcode

Command Parameters

Return Parameters

GAP_SetParam

0xFE30

paramID, paramValue

Status

Description:
Send this command to write a GAP Parameter.
Command Parameters:
paramID: (2 octets)
Value

Parameter Description

TGAP_GEN_DISC_ADV_MIN - Minimum time to remain advertising, when
in Discoverable mode (mSec). Setting this parameter to 0 turns off the timer
(default).

TGAP_LIM_ADV_TIMEOUT - Maximum time to remain advertising, when in
Limited Discoverable mode. In seconds (default 180 seconds).

TGAP_GEN_DISC_SCAN - Minimum time to perform scanning, when
performing General Discovery proc (mSec).

TGAP_LIM_DISC_SCAN - Minimum time to perform scanning, when
performing Limited Discovery proc (mSec).

TGAP_CONN_EST_ADV_TIMEOUT
Advertising
performing Connection Establishment proc (mSec).

TGAP_CONN_PARAM_TIMEOUT - Link Layer connection parameter
update notification timer, connection parameter update proc (mSec).

TGAP_LIM_DISC_ADV_INT_MIN - Minimum advertising interval, when in
limited discoverable mode (mSec).

TGAP_LIM_DISC_ADV_INT_MAX - Maximum advertising interval, when in
limited discoverable mode (mSec).

TGAP_GEN_DISC_ADV_INT_MIN - Minimum advertising interval, when in
General discoverable mode (mSec).

TGAP_GEN_DISC_ADV_INT_MAX - Maximum advertising interval, when in
General discoverable mode (mSec).

TGAP_CONN_ADV_INT_MIN - Minimum advertising interval, when in
Connectable mode (mSec).

TGAP_CONN_ADV_INT_MAX - Maximum advertising interval, when in

timeout,

when

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Value

Parameter Description
Connectable mode (mSec).

TGAP_CONN_SCAN_INT - Scan interval used during Link Layer Initiating
state, when in Connectable mode (mSec).

TGAP_CONN_SCAN_WIND - Scan window used during Link Layer
Initiating state, when in Connectable mode (mSec).

TGAP_CONN_HIGH_SCAN_INT - Scan interval used during Link Layer
Initiating state, when in Connectable mode, high duty scan cycle scan
paramaters (mSec).

TGAP_CONN_HIGH_SCAN_WIND - Scan window used during Link Layer
Initiating state, when in Connectable mode, high duty scan cycle scan
paramaters (mSec).

TGAP_GEN_DISC_SCAN_INT - Scan interval used during Link Layer
Scanning state, when in General Discovery proc (mSec).

TGAP_GEN_DISC_SCAN_WIND - Scan window used during Link Layer
Scanning state, when in General Discovery proc (mSec).

TGAP_LIM_DISC_SCAN_INT - Scan interval used during Link Layer
Scanning state, when in Limited Discovery proc (mSec).

TGAP_LIM_DISC_SCAN_WIND - Scan window used during Link Layer
Scanning state, when in Limited Discovery proc (mSec).

TGAP_CONN_EST_ADV - Advertising interval, when using Connection
Establishment proc (mSec).

TGAP_CONN_EST_INT_MIN - Minimum Link Layer connection interval,
when using Connection Establishment proc (mSec).

TGAP_CONN_EST_INT_MAX - Maximum Link Layer connection interval,
when using Connection Establishment proc (mSec).

TGAP_CONN_EST_SCAN_INT - Scan interval used during Link Layer
Initiating state, when using Connection Establishment proc (mSec).

TGAP_CONN_EST_SCAN_WIND - Scan window used during Link Layer
Initiating state, when using Connection Establishment proc (mSec).

TGAP_CONN_EST_SUPERV_TIMEOUT - Link Layer connection
supervision timeout, when using Connection Establishment proc (mSec).

TGAP_CONN_EST_LATENCY - Link Layer connection slave latency, when
using Connection Establishment proc (mSec)

TGAP_CONN_EST_MIN_CE_LEN - Local informational parameter about
min len of connection needed, when using Connection Establishment proc
(mSec).

TGAP_CONN_EST_MAX_CE_LEN - Local informational parameter about
max len of connection needed, when using Connection Establishment proc
(mSec).

TGAP_PRIVATE_ADDR_INT - Minimum Time Interval between private
(resolvable) address changes. In minutes (default 15 minutes).

TGAP_CONN_PAUSE_CENTRAL – Central idle timer. In seconds (default
1 second).
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Value

Parameter Description

TGAP_CONN_PAUSE_PERIPHERAL – Minimum time upon connection
establishment before the peripheral starts a connection update procedure.
In seconds (default 5 seconds).

TGAP_SM_TIMEOUT - SM Message Timeout (milliseconds). (default 30
seconds).

TGAP_SM_MIN_KEY_LEN - SM Minimum Key Length supported (default
7).

TGAP_SM_MAX_KEY_LEN - SM Maximum Key Length supported (default
16).

TGAP_FILTER_ADV_REPORTS - Filter duplicate advertising reports
(Default TRUE).

TGAP_SCAN_RSP_RSSI_MIN - Minimum RSSI
responses to be reported to the app (Default -127).

required

for

scan

The following parameters are use for testing only (DO NOT USE):
Value

Parameter Description

TGAP_GAP_TESTCODE - GAP Test Modes:
0 – Test Mode Off
1 – No Response
2 – Reject Connection Parameter Update Request

TGAP_SM_TESTCODE - SM Test Modes:
0 – Test Mode Off
1 – No Response
2 – Send Bad Confirm
3 – Bad Confirm Verify
4 – Send SMP Confirm Message

100

TGAP_GATT_TESTCODE - GATT Test Modes:
0 – Test Mode Off
1 – Ignore incoming request
2 – Forward Prepare Write Request right away
3 – Use Max ATT MTU size with Exchange MTU Response
4 – Corrupt incoming Prepare Write Request data

101

TGAP_ATT_TESTCODE - ATT Test Modes:
0 – Test Mode Off
1 – Do Not authenticate incoming signature

102

TGAP_GGS_TESTCODE - GGS Test Modes:
0 – Test Mode Off
1 – Make Device Name attribute writable
2 – Make Appearance attribute writable
3 – Make Peripheral Privacy Flag attribute writable with authentication

paramValue: (2 octets)
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Value

Parameter Description

0xXXXX

Depends on the parameter

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

Invalid paramID

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter.

12.18 GAP Get Parameter
Command

Opcode

Command Parameters

Return Parameters

GAP_GetParam

0xFE31

paramID,

Status, paramValue

Description:
Send this command to read a GAP Parameter.
Command Parameters:
paramID: (2 octets)
Value

Parameter Description

0xXXXX

See paramID list in GAP Set Parameter

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

Invalid paramID

paramValue: (2 octets)
Value

Parameter Description

0xXXXX

Depends on the paramID passed in. See paramID
descriptions in GAP Set Parameter for size and values.
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Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
and paramValue parameters.

12.19 GAP Resolve Private Address
Command

Opcode

Command Parameters

Return Parameters

GAP_ResolvePrivateAddr

0xFE32

IRK, addr

Status

Description:
Send this command to resolve a Private Resolvable Address.
Command Parameters:
IRK: (16 octets)
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

IRK to resolve addr with

addr: (6 octet)
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

Private resolvable address to resolve (with IRK).

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS – addr resolves

0x01

FAILURE – addr doesn’t resolve

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter.

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12.20 GAP Set Advertisement Token
Command

Opcode

Command Parameters

Return Parameters

GAP_SetAdvToken

0xFE33

adType, advDataLen,
advData

Status

Description:
Send this command to add an Advertisement Data Token to the advertisement data field of an
advertisement packet.
Command Parameters:
adType: (1 octet)
Value

Parameter Description

0x01

Flags: Discovery Mode

0x02

Service: More 16-bit UUIDs available

0x03

Service: Complete list of 16-bit UUIDs

0x04

Service: More 32-bit UUIDs available

0x05

Service: Complete list of 32-bit UUIDs

0x06

Service: More 128-bit UUIDs available

0x07

Service: Complete list of 128-bit UUIDs

0x08

Shortened local name

0x09

Complete local name

0x0A

TX Power Level: 0xXX: -127 to +127 dBm

0x0D

Simple Pairing OOB Tag: Class of device (3
octets)

0x0E

Simple Pairing OOB Tag: Simple Pairing Hash
C (16 octets)

0x0F

Simple Pairing OOB Tag: Simple Pairing
Randomizer R (16 octets)

0x10

Security Manager TK Value

0x11

Secutiry Manager OOB Flags

0x12

Min and Max values of the connection interval
(2 octets Min, 2 octets Max) (0xFFFF indicates
no conn interval min or max)

0x13

Signed Data field

0x14

Service Solicitation: list of 16-bit Service UUIDs

0x15

Service Solicitation: list of 128-bit Service
UUIDs
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0x16

Service Data

0xFF

Manufacturer Specific Data: first 2 octets
contain the Company Identifier Code followed
by the additional manufacturer specific data

advDataLen: (1 octet)
Value

Parameter Description

0xXX

Length (in octets) of advData

advData: (advDataLen octets)
Value

Parameter Description

“XX:XX…XX”

Advertisement token data (over-the-air format).

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

Invalid Advertisement Type

0x0B

Token takes up too much space and doesn’t fit
into Advertisement data and Scan response
data.

0x12

Invalid GAP Profile Role

0x18

Advertisement Type already exists

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter.

12.21 GAP Remove Advertisement Token
Command

Opcode

Command Parameters

Return Parameters

GAP_RemoveAdvToken

0xFE34

adType

Status

Description:

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Send this command to remove an Advertisement Data Token from the advertisement data field of an
advertisement packet.
Command Parameters:
adType: (1 octet)
Value

Parameter Description

0x01

Flags: Discovery Mode

0x02

Service: More 16-bit UUIDs available

0x03

Service: Complete list of 16-bit UUIDs

0x04

Service: More 32-bit UUIDs available

0x05

Service: Complete list of 32-bit UUIDs

0x06

Service: More 128-bit UUIDs available

0x07

Service: Complete list of 128-bit UUIDs

0x08

Shortened local name

0x09

Complete local name

0x0A

TX Power Level: 0xXX: -127 to +127 dBm

0x0D

Simple Pairing OOB Tag: Class of device (3
octets)

0x0E

Simple Pairing OOB Tag: Simple Pairing Hash
C (16 octets)

0x0F

Simple Pairing OOB Tag: Simple Pairing
Randomizer R (16 octets)

0x10

Security Manager TK Value

0x11

Secutiry Manager OOB Flags

0x12

Min and Max values of the connection interval
(2 octets Min, 2 octets Max) (0xFFFF indicates
no conn interval min or max)

0x13

Signed Data field

0x14

Service Solicitation: list of 16-bit Service UUIDs

0x15

Service Solicitation: list of 128-bit Service
UUIDs

0x16

Service Data

0xFF

Manufacturer Specific Data: first 2 octets
contain the Company Identifier Code followed
by the additional manufacturer specific data

Return Parameters:
Status: (1 octet)
Value

Parameter Description
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0x00

SUCCESS

0x02

adType not found.

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter.

12.22 GAP Update Advertisement Tokens
Command

Opcode

GAP_UpdateAdvToken

0xFE35

Command Parameters

Return Parameters
Status

Description:
After adding an removing advertisement tokens, they must be updated to actual advertisements by
sending this command.
Command Parameters:
none
Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter.

12.22.1 GAP Bond Set Parameter
Command

Opcode

Command Parameters

Return Parameters

GAP_BondSetParam

0xFE36

paramID, paramDataLen,
paramData

Status

Description:
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Send this command to set a GAP Bond parameter.
Command Parameters:
paramID: (2 octets)
Value

Parameter Description

0x0400

Pairing Mode - Read/Write. Size is uint8. Values:
0x00 – Pairing Not allowed
0x01 – Wait for Request (default)
0x02 – Don’t wait, initiate a Slave Requested Security command (not
available yet).

0x0401

Pairing Mode Initiate wait timeout. This is the time it will wait for a Pairing
Request before sending the Slave Initiate Request. Read/Write. Size is
uint16. Default is 1000(in milliseconds).

0x0402

Man-In-The-Middle (MITM) basically turns on Passkey protection in the
pairing algorithm. Read/Write. Size is uint8. Values:
0x00 – Disabled (default).
0x01 – Enabled.

0x0403

I/O capabilities. Read/Write. Size is uint8. Values:
0x00 – Display Only Device (default)
0x01 – Display – Yes an No capable
0x02 – Keyboard only
0x03 – No Input, No Output
0x04 – Keyboard and Display

0x0404

OOB data available for pairing algorithm. Read/Write. Size is uint8. Values:
0x00 – Disabled (default).
0x01 – Enabled.

0x0405

OOB Data. Read/Write. size uint8[16]. Default is all 0's.

0x0406

Request Bonding during the pairing process if enabled. Read/Write. Size is
uint8. Values:
0x00 – Disabled (default).
0x01 – Enabled.

0x0407

The key distribution list for bonding. size is uint8. Bit Values:
Bit 0 – Slave LTK and key information (default)
Bit 1 – Slave IRK and ID information (default)
Bit 2 – Slave CSRK
Bit 3 – Master LTK and key information
Bit 4 – Master IRK and ID information (default).
Bit 5 – Master CSRK (default)
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0x0408

The default passcode for MITM protection. size is uint32.
Range is 0 - 999,999. Default is 0.

0x0409

Erase all of the bonded devices. Write Only - command. No Size.

0x040A

Test mode to automatically send a Pairing Fail when a Pairing Request is
received. Read/Write. size is uint8. Default is 0 (disabled). Set to 1 to
enable.

0x040B

Test mode Pairing Fail reason when auto failing. Read/Write. size is uint8.
Default is 0x05 (SMP_PAIRING_FAILED_NOT_SUPPORTED).

0x040C

Key Size used in pairing. Read/Write. Size is uint8. Default is 16.

0x040D

Clears the White List adds to it each unique address stored by bonds in NV.
Read/Write. Size is uint8. Default is FALSE.

0x040E

Gets the total number of bonds stored in NV. Read Only. Size is uint8.
Default is 0 (no bonds).

0x040F

Possible actions Central may take upon an unsuccessful bonding. Write
Only. Size is uint8. Default is 1 (initiate pairing).

paramDataLen: (1 octet)
Value

Parameter Description

0xXX

Length (in octets) of paramData

paramData: (paramDataLen octets)
Value

Parameter Description

“XX:XX…XX”

Parameter data – depends on paramID.

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

Invalid paramID

0x18

Invalid paramDataLen

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter.

12.22.2 GAP Bond Get Parameter
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Command

Opcode

Command Parameters

Return Parameters

GAP_BondGetParam

0xFE37

paramID

Status, paramDataLen,
paramData

Description:
Send this command to read a GAP Bond parameter.
Command Parameters:
paramID: (2 octets)
Value

Parameter Description

0xXX

See paramID in GAP Bond Set Parameter

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

Invalid paramID

0x18

Invalid paramDataLen

paramDataLen: (1 octet)
Value

Parameter Description

0xXX

Length (in octets) of paramData

paramData: (paramDataLen octets)
Value

Parameter Description

“XX:XX…XX”

Depends on the paramID.

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status,
paramDataLen, paramData parameters.

TI BLE HCI Vendor Specific HCI Guide

13. GAP Vendor Specific Events
13.1 GAP Device Init Done
Event

Opcode

Event Parameters

GAP_DeviceInitDone

0x0600

Status, devAddr, dataPktLen, numDataPkts, IRK,
CSRK,

Description:
This event is sent to indicate that the device is done initializing.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

devAddr: (6 octets)
Value

Parameter Description

“XX:XX:XX:XX:XX:XX”

The device’s public address (BD_ADDR).

dataPktLen: (2 octets)
Range

Parameter Description

0x0000 – 0xFFFF

HC_LE_Data_Packet_Length

numDataPkts: (1 octet)
Range

Parameter Description

0x00 – 0xFF

HC_Total_Num_LE_Data_Packets

IRK: (16 octets)
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

16 byte Identity Resolving Key (IRK). This is either a
randomly generated key or the original key passed in the
GAP_DeviceInit command.

CSRK: (16 octets)
Value

TI BLE HCI Vendor Specific HCI Guide
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

16 byte Connection Signature Resolving Key (CSRK).
This is either a randomly generated key or the original key
passed in the GAP_DeviceInit command.

13.2 GAP Device Discovery
Event

Opcode

Event Parameters

GAP_DeviceDiscovery

0x0601

Status, numDevs, array of {eventType, addrType,
addr}

Description:
This event is sent to indicate that the scan is complete.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

numDevs: (1 octet)
Range

Parameter Description

0 – 0xFF

The number of advertising devices detected during the
scan. The number reflects the type of filter used during
the scan.

eventType: (1 octet)
Value

Parameter Description

Connectable undirected advertisement

Connectable directed advertisement

Discoverable undirected advertisement

Non-connectable undirected advertisement

Scan Response

addrType: (1 octet)
Value

TI BLE HCI Vendor Specific HCI Guide
Value

Parameter Description

ADDRTYPE_PUBLIC

ADDRTYPE_STATIC

ADDRTYPE_PRIVATE_NONRESOLVE

ADDRTYPE_PRIVATE_RESOLVE

addr: (6 octets)
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

Address of the device scanned.

13.3 GAP Advert Data Update Done
Event

Opcode

Event Parameters

GAP_AdvertDataUpdateDone

0x0602

Status , adType

Description:
This event is sent when the device sets the advertising data because of the GAP Update Advertising
Data Command.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

adType: (1 octet)
Value

Parameter Description

SCAN_RSP data

Advertisement data

13.4 GAP Make Discoverable Done
Event

Opcode

Event Parameters

GAP_MakeDiscoverableDone

0x0603

Status
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TI BLE HCI Vendor Specific HCI Guide

Description:
This event is sent when the device starts advertising.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

interval: (2 octets)
Range

Parameter Description

0xXXXX

Actual advertising interval selected by the Controller

13.5 GAP End Discoverable Done
Event

Opcode

Event Parameters

GAP_EndDiscoverableDone

0x0604

Status

Description:
This event is sent when the device ends advertising.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

13.6 GAP Link Established
Event

Opcode

Event Parameters

GAP_LinkEstablished

0x0605

Status, devAddrType, devAddr, connHandle,
connInterval, connLatency, connTimeout,
clockAccuracy

TI BLE HCI Vendor Specific HCI Guide
Description:
This message is sent when a connection is established with another device. On a Central device, this
message is a result for a GAP Establish Link Request. On a Peripheral device, this message is
received when a central device initiated a connection.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

devAddrType: (1 octet)
Value

Parameter Description

ADDRTYPE_PUBLIC

ADDRTYPE_STATIC

ADDRTYPE_PRIVATE_NONRESOLVE

ADDRTYPE_PRIVATE_RESOLVE

devAddr: (6 octets)
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

Address of the connected device

connHandle: (2 octets)
Range

Parameter Description

0 – 0xFFFD

Handle of the connection. This will be used to reference
the connection in other “connection based” commands.

connInterval: (2 octets)
Value

Parameter Description

N = 0xXXXX

Connection interval used on this connection.
Range: 0x0006 to 0x0C80
Time = N * 1.25 msec
Time Range: 7.5 msec to 4 seconds

connLatency: (2 octets)
Value

Parameter Description

N = 0xXXXX

TI BLE HCI Vendor Specific HCI Guide
Value

Parameter Description
Range: 0x0006 to 0x0C80
Time = N * 1.25 msec
Time Range: 7.5 msec to 4 seconds

connTimeout: (2 octets)
Value

Parameter Description

N = 0xXXXX

Connection supervision timeout.
Range: 0x0006 to 0x0C80
Time = N * 1.25 msec
Time Range: 7.5 msec to 4 seconds

clockAccuracy: (1 octet)
Value

Parameter Description

500 ppm

250 ppm

150 ppm

100 ppm

75 ppm

50 ppm

30 ppm

20 ppm

8 – 0xFF

reserved

13.7 GAP Link Terminated
Event

Opcode

Event Parameters

GAP_LinkTerminated

0x0606

Status, connHandle, reason

TI BLE HCI Vendor Specific HCI Guide
Value

Parameter Description

0x00

SUCCESS

connHandle: (2 octets)
Value

Parameter Description

Connection Handle of terminated link

reason: (1 octet)
Value

Parameter Description

0x08

Supervisor Timeout

0x13

Peer Requested

0x16

Host Requested

0x22

Control Packet Timeout

0x28

Control Packet Instant Passed

0x3B

LSTO Violation

0x3D

MIC Failure

13.8 GAP Link Parmeter Update
Event

Opcode

Event Parameters

GAP_LinkParamUpdate

0x0607

Status, connHandle, connInterval, connLatency,
connTimeout

Description:
This message is sent whenever connection parameter update is completed.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

connHandle: (2 octets)
Value

Parameter Description

TI BLE HCI Vendor Specific HCI Guide
connInterval: (2 octets)
Value

Parameter Description

N = 0xXXXX

Connection interval used on this connection.
Range: 0x0006 to 0x0C80
Time = N * 1.25 msec
Time Range: 7.5 msec to 4 seconds

connLatency: (2 octets)
Value

Parameter Description

N = 0xXXXX

Connection latency used on this connection.
Range: 0x0000 to 0x01F3

connTimeout: (2 octets)
Value

Parameter Description

N = 0xXXXX

Connection supervision timeout.
Range: 0x000A to 0x0C80
Time = N * 10 msec
Time Range: 100 msec to 32 seconds

13.9 GAP Random Address Changed
Event

Opcode

Event Parameters

GAP_RandomAddrChanged

0x0608

Status, addrType, newRandomAddr

Description:
This message is sent whenever the device’s Private Resolvable Address automatically changes.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

addrType: (1 octet)
Value

TI BLE HCI Vendor Specific HCI Guide
Value

Parameter Description

ADDRTYPE_PUBLIC

ADDRTYPE_STATIC

ADDRTYPE_PRIVATE_NONRESOLVE

ADDRTYPE_PRIVATE_RESOLVE

newRandomAddr: (6 octets)
Value

Parameter Description

“XX:XX:XX:XX:XX:XX”

New Private Resolvable Address was generated.

13.10 GAP Signature Updated
Event

Opcode

Event Parameters

GAP_SignatureUpdated

0x0609

Status, addrType, devAddr, signCounter

Description:
This message is sent whenever sign counter is updated (incremented). This message will be generated
when a new sign counter is received from a connected device or when this device increments its own
sign counter.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

addrType: (1 octet)
Value

Parameter Description

ADDRTYPE_PUBLIC

ADDRTYPE_STATIC

ADDRTYPE_PRIVATE_NONRESOLVE

ADDRTYPE_PRIVATE_RESOLVE

devAddr: (6 octets)
Range

TI BLE HCI Vendor Specific HCI Guide
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

The device address of the sign counter that changed. It
may be this device or a connected device.

signCounter: (6 octets)
Range

Parameter Description

0 – 0xFFFFFFFF

The new sign counter value for the referenced device.

13.11 GAP Authentication Complete
Event

Opcode

Event Parameters

GAP_AuthenticationComplete

0x060A

Status, connHandle,
authState,
secInfo,
secInfo.LTKsize, secInfo.LTK, secInfo.DIV,
secInfo.rand,
devSecInfo,
devSecInfo.LTKsize, devSecInfo.LTK,
devSecInfo.DIV, devSecInfo.rand,
identityInfo,
identityInfo.IRK, identityInfo.BD_ADDR,
signingInfo,
signingInfo.CSRK, signingInfo.signCounter

Description:
This event is generated whenever the pairing process is completed (pass or fail).
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x01 – 0xFF

Pairing failures

connHandle: (2 octets)
Value

Parameter Description

Connection Handle of link

TI BLE HCI Vendor Specific HCI Guide
Bit

Parameter Description

Bonding – exchange and save key information

Reserved

Man-In-The-Middle protection

3–7

Reserved

secInfo: (1 octet)
Value

Parameter Description

0x00

The following “secInfo” parameters are NOT enabled in
this event.

0x01

The following “secInfo” parameters are enabled in this
event.

The following security information is for the device itself:
secInfo.LTKsize: (1 octet)
Range

Parameter Description

7 – 16

Encryption key size

secInfo.LTK: (16 octets)
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

16 byte Long Term Key (LTK).

secInfo.DIV: (2 octets)
Range

Parameter Description

0 – 0xFFFF

The DIV used with this LTK.

secInfo.rand: (8 octets)
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX”

The 8 byte random number generated for this LTK.

devSecInfo: (1 octet)
Value

TI BLE HCI Vendor Specific HCI Guide
Value

Parameter Description

0x00

The following “devSecInfo” parameters are NOT enabled
in this event.

0x01

The following “devSecInfo” parameters are enabled in this
event.

The following security information is for the connected peer device:
devSecInfo.LTKsize: (1 octet)
Range

Parameter Description

7 – 16

Encryption key size

devSecInfo.LTK: (16 octets)
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

16 byte Long Term Key (LTK).

devSecInfo.DIV: (2 octets)
Range

Parameter Description

0 – 0xFFFF

The DIV used with this LTK.

devSecInfo.rand: (8 octets)
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX”

The 8 byte random number generated for this LTK.

identityInfo: (1 octet)
Value

Parameter Description

0x00

The following “identityInfo” parameters are NOT enabled
in this event.

0x01

The following “identityInfo” parameters are enabled in this
event.

identityInfo.IRK: (16 octets)
Value

Parameter Description

“XX:XX:XX:XX:

TI BLE HCI Vendor Specific HCI Guide
Value
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

Parameter Description
Resolvable Addresses.

identityInfo.BD_ADDR: (6 octets)
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

The connected device’s Public Address.

signingInfo: (1 octet)
Value

Parameter Description

0x00

The following “signingInfo” parameters are NOT enabled
in this event.

0x01

The following “signingInfo” parameters are enabled in this
event.

signingInfo.IRK: (16 octets)
Value

Parameter Description

“XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX:
XX:XX:XX:XX”

16 byte Connected Signature Resolving Key (CSRK).

signingInfo.signCounter: (2 octets)
Range

Parameter Description

0 – 0xFFFF

The connected device’s current sign counter

13.12 GAP Passkey Needed
Event

Opcode

Event Parameters

GAP_PasskeyNeeded

0x060B

Status, devAddr, connHandle, uiInputs, uiOutputs

TI BLE HCI Vendor Specific HCI Guide
Value

Parameter Description

0x00

SUCCESS

devAddr: (6 octets)
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

Address of the pairing device.

connHandle: (2 octets)
Value

Parameter Description

Connection Handle of link

uiInput: (1 octet)
Value

Parameter Description

0x00

Don’t ask user to input a passcode

0x01

Ask user to input a passcode

uiOuput: (1 octet)
Value

Parameter Description

0x00

Don’t display passcode

0x01

Display a passcode

13.13 GAP Slave Requested Security
Event

Opcode

Event Parameters

GAP_SlaveRequestedSecurity

0x060C

Status, connHandle, devAddr, authReq

Description:
This message is generated when the master device receives an SM Slave Request from the connected
slave device.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

TI BLE HCI Vendor Specific HCI Guide

connHandle: (2 octets)
Value

Parameter Description

Connection Handle of link

devAddr: (6 octets)
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

The connected device’s address.

authReq: Bit Mask (1 octet)
Bit

Parameter Description

Bonding – exchange and save key information

Reserved

Man-In-The-Middle protection

3–7

Reserved

13.14 GAP Device Information
Event

Opcode

Event Parameters

GAP_DeviceInformation

0x060D

Status, eventTypes, addrType, addr, rssi,
dataLen, dataField

Description:
This message is sent during a scan and represents another device’s advertisement or SCAN_RSP
packet.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

eventType: (1 octet)
Value

Parameter Description

Connectable undirected advertisement

TI BLE HCI Vendor Specific HCI Guide
Value

Parameter Description

Discoverable undirected advertisement

Non-connectable undirected advertisement

Scan Response

addrType: (1 octet)
Value

Parameter Description

ADDRTYPE_PUBLIC

ADDRTYPE_STATIC

ADDRTYPE_PRIVATE_NONRESOLVE

ADDRTYPE_PRIVATE_RESOLVE

addr: (6 octets)
Range

Parameter Description

“XX:XX:XX:XX:XX:XX”

Address of the device scanned.

rssi: (1 octet)
Range

Parameter Description

0x00 – 0xFF
dataLen: (1 octet)
Range

Parameter Description

0x00 – 0xFF

Number of octets in the following dataField field.

dataField: (dataLen octets)
Range

Parameter Description

“XX:XX … XX”

Data field of the advertisement or SCAN_RSP packets.

13.15 GAP Bond Complete
Event

Opcode

Event Parameters

GAP_BondComplete

0x060E

Status, connHandle

TI BLE HCI Vendor Specific HCI Guide
This message is sent when a bond is complete and the connection is encrypted.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x01 – 0xFF

error

connHandle: (2 octets)
Value

Parameter Description

Connection Handle of link

13.16 GAP Pairing Requested
Event

Opcode

Event Parameters

GAP_PairingRequested

0x060F

Status, connHandle, ioCap, oobDataFlag,
authReq, maxEncKeySize, keyDist

Description:
This message is sent when a bond is complete and the connection is encrypted.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x01 – 0xFF

error

connHandle: (2 octets)
Value

Parameter Description

Connection Handle of link

ioCap: (1 octet)
Value

Parameter Description

Display Only

TI BLE HCI Vendor Specific HCI Guide
Value

Parameter Description

Keyboard Only

No Input and No Output

Keyboard and Display

5 – 0xFF

reserved

oobDataFlag: (1 octet)
Value

Parameter Description

Out-Of-Bounds (OOB) data is NOT available

Out-Of-Bounds (OOB) data is available

authReq: Bit Mask (1 octet)
Bit

Parameter Description

Bonding – exchange and save key information

Reserved

Man-In-The-Middle protection

3–7

Reserved

maxEncKeySize: (1 octet)
Range

Parameter Description

7 – 16

Maximum encryption key size to support

keyDist: Bit Mask (1 octet)
Bit

Parameter Description

Slave Encryption Key

Slave Identification Key

Slave Signing Key

Master Encryption Key

Master Identification Key

Master Signing Key

6–7

Reserved

13.17 Command Status

TI BLE HCI Vendor Specific HCI Guide
Event

Opcode

Event Parameters

CommandStatus

0x067F

Status, opCode, dataLen, payload

Description:
The Command Status event is used to indicate that the command given by opCode parameter has been
received and is being processed. If successful, an HCI vendor specific event that corresponds to the
command will follow. Otherwise, no event will follow since the command was not started.
Event Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x01 – 0xFF

See Host Error Codes [20]

opCode: (2 octets)
Value

Parameter Description

Connection Handle of link

dataLen: (1 octet)
Value

Parameter Description

Length of payload

payload: (dataLen octets)
Value

Parameter Description

“XX:XX…XX”

Command payload

TI BLE HCI Vendor Specific HCI Guide

14. UTIL Vendor Specific Commands
14.1 UTIL Reset Command
Command

Opcode

Command Parameters

Return Parameters

UTIL_Reset

0xFE80

resetType

Status

Description:
Send this command to set reset the device.
Command Parameters:
resetType: (1 octet)
Value

Parameter Description

Hard reset

Soft reset

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

Invalid resetType

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter and reset the device in 100 milliseconds.

14.2 UTIL NV Read Command
Command

Opcode

Command Parameters

Return Parameters

UTIL_NVRead

0xFE81

nvID, nvDataLen

Status, nvData

TI BLE HCI Vendor Specific HCI Guide
nvID: (1 octet)
Value

Parameter Description

0x02

This device’s IRK. Size is 16 bytes.

0x03

This device’s CSRK. Size is 16 bytes.

0x04

This device’s sign counter. Size is uint32.

0x20 – 0x5F

GAP Bond Manager NV Items.

GAP Bond Manager NV Items:
This range is taken with the following repeating ID offsets, used below:
0 – bondRecord
1 – localLTK
2 – deviceLTK
3 – deviceIRK
4 – deviceCSRK
5 – deviceSignCounter
To calculate an NV item for the GAP Bond Manager:
The NV definitions:
 NVID_GB_START (0x20) - starting GAP Bond Manager NV ID
 GAP_BONDINGS_MAX (default 10) - Maximum number of bonding allowed (10 is max
for number of NV IDs allocated in bcomdef.h).
Definitions for the formulas:
 KEYLEN – 16 bytes
 B_ADDR_LEN – 6 bytes
 MAX_OFFSETS = 6
 B_RANDOM_NUM_SIZE = 8
Structure definitions:
typedef struct
{
uint8
LTK[KEYLEN];
uint16 div;
uint8
rand[B_RANDOM_NUM_SIZE];
uint8
keySize;
} gapBondLTK_t;
typedef struct
{
uint8
publicAddr[B_ADDR_LEN];
uint8
reconnectAddr[B_ADDR_LEN];
uint16 stateFlags;
} gapBondRec_t;

// Master's address

A single bonding entry consists of 6 components (NV items):
 Bond Record - defined as gapBondRec_t and uses for an NV ID offset
 local LTK Info - defined as gapBondLTK_t and uses localLTK for an NV ID offset
 device LTK Info - defined as gapBondLTK_t and uses deviceLTK for an NV ID offset
 device IRK - defined as "uint8 [KEYLEN]" and uses deviceIRK for an NV ID offset
Page 114 of 154
Copyright © 2013 Texas Instruments, Inc

TI BLE HCI Vendor Specific HCI Guide



device CSRK - defined as "uint8 [KEYLEN]" and uses deviceCSRK for an NV ID offset
device Sign Counter - defined as a uint32 and uses deviceSignCounter for an NV ID
offset

When the device is initialized for the first time, all (GAP_BONDINGS_MAX) NV items are created
and initialized to all 0xFF's. A bonding record of all 0xFF's indicates that the bonding record is
empty and free to use.
Example calculation for each bonding records NV IDs, bondIdx represents the bond record (0-9):
 mainRecordNvID = ((bondIdx * MAX_OFFSETS) + NVID_GB_START)
 localLTKNvID = (((bondIdx * MAX_OFFSETS) + localLTK) + NVID_GB_START)
 devlLTKNvID = (((bondIdx * MAX_OFFSETS) + devlLTK) + NVID_GB_START)
 devIRKNvID = (((bondIdx * MAX_OFFSETS) + devIRK) + NVID_GB_START)
 devCSRKNvID = (((bondIdx * MAX_OFFSETS) + devCSRK) + NVID_GB_START)
 devSignCounterNvID = (((bondIdx * MAX_OFFSETS) + devSignCounter) +
NVID_GB_START)

nvDataLen: (1 octet)
Value

Parameter Description

0xXX

Length (in octets) to read from nvID

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0xXX

failure

nvData: (nvDataLen octets)
Value

Parameter Description

“XX:XX…XX”

NV Data – depends on the nvID passed in.

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
and nvData parameters.

14.3 UTIL NV Write Command
Command

Opcode

Command Parameters

Return Parameters

UTIL_NVWrite

0xFE82

nvID, nvDataLen, nvData

Status
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TI BLE HCI Vendor Specific HCI Guide

Description:
Send this command to write an NV parameter.
Command Parameters:
nvID: (1 octet)
Value

Parameter Description

0xXX

See the nvID description in the UTIL NV Read
Command

nvDataLen: (1 octet)
Value

Parameter Description

0xXX

Length (in octets) nvData

nvData: (nvDataLen octets)
Value

Parameter Description

“XX:XX…XX”

NV Data depends on the nvID

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0xXX

failure

Event(s) Generated:
When this command is received, the host will send the HCI Ext Command Status Event with the Status
parameter.

14.4 UTIL Force Boot Command
Command

Opcode

Command Parameters

Return Parameters

UTIL_ForceBoot

0xFE83

None

Status

TI BLE HCI Vendor Specific HCI Guide

Command Parameters:
None
Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x02

INVALIDPARAMETER

Event(s) Generated:
When this command is received, the device resets if the boot loader is present. Otherwise, the host will
send the HCI Ext Command Status Event with the Status parameter set to 0x02.

TI BLE HCI Vendor Specific HCI Guide

15. L2CAP Vendor Specific Commands
All L2CAP commands have the following format:
Name

Size (octets)

Description

Opcode

PDU operation code

connectionHandle

Connection Handle of link

Command PDU

Variable

Command parameters

Note: The connection handle of 0xFFFE is considered as the loopback connection. All message sent to
this connection will be loop backed to the local host.
For the command parameters, please see the corresponding section below.

15.1 L2CAP_ConnParamUpdateReq (0xFC92)
The Connection Parameter Update Request is sent from the LE slave device to the LE master device.
This request allows the LE slave Host to request a set of new connection parameters.
Command Parameters:
intervalMin: (2 octets)
Range
6 - 3200

Defines minimum value for the connection event interval
in the following manner:
connIntervalMin = Interval Min * 1.25 ms. Interval Min
range: 6 to 3200 frames where 1 frame is 1.25 ms and
equivalent to 2 BR/EDR slots. Values outside the range
are reserved. Interval Min shall be less than or equal to
Interval Max.

intervalMax: (2 octets)
Range

Parameter Description

6 - 3200

Defines maximum value for the connection event interval
in the following manner:
connIntervalMax = Interval Max * 1.25 ms. Interval Max
range: 6 to 3200 frames. Values outside the range are
reserved. Interval Max shall be equal to or greater than
the Interval Min.

slaveLatency: (2 octets)
Range

TI BLE HCI Vendor Specific HCI Guide
Range

Parameter Description

0 - 500

Defines the slave latency parameter (as number of LL
connection events) in the following manner:
connSlaveLatency = Slave Latency. The Slave Latency
field shall have a value in the range of 0 to
((connSupervisionTimeout / connIntervalMax) - 1). The
Slave Latency field shall be less than 500.

timeoutMultiplier: (2 octets)
Range

Parameter Description

10 - 3200

Defines connection timeout parameter in the following
manner:
connSupervisionTimeout = Timeout Multiplier * 10 ms
The Timeout Multiplier field shall have a value in the
range of 10 to 3200.

Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x01

FAILURE

0x02

INVALIDPARAMETER

0x04

MSG_BUFFER_NOT_AVAIL

0x13

bleMemAllocError

0x14

bleNotConnected

0x15

bleNoResources

Event(s) Generated:
When this request is received, the LE slave host will send the Command Status Event with the Status
parameter after forwarding the request to the LE master host. The LE master host will send the
Connection Parameter Update Response (L2CAP_ConnParamUpdateRsp) event back.
If the LE slave host receives this request, it will respond with a Command Reject (L2CAP_CmdReject)
with reason 0x0000 (command not understood).

TI BLE HCI Vendor Specific HCI Guide

16. L2CAP Vendor Specific Events
All L2CAP events have the following format:
Name

Size (octets)

Description

Opcode

PDU operation code

status

Event status

connectionHandle

Connection Handle of link

Event PDU

Variable

Event parameters

Event Status:
Value

Parameter Description

0x00

SUCCESS

0x14

bleNotConnected

0x17

bleTimeout

For the event parameters, please see the corresponding section below.

16.1 L2CAP_CmdRejct (0x0481)
The Command Reject is sent in response to a command with an unknown command code or when
sending the corresponding response is inappropriate.
Event Parameters:
reason: (2 octets)
Value

Parameter Description

0x0000

Command not understood

0x0001

Signaling MTU exceeded

0x0002

Invalid CID in request

16.2 L2CAP_ConnParamUpdateRsp (0x0493)
This Connection Parameter Update Response is sent from the LE master device to the LE slave device.
This response is sent by the master Host when it receives a Connection Parameter Update Request
packet.
Event Parameters:
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result: (2 octets)
Value

Parameter Description

0x0000

Connection Parameters accepted

0x0001

Connection Parameters rejected

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17. ATT Vendor Specific Commands and Events
Most of the ATT requests and responses have two associated opcodes, command and event, due to
Request and Response Tunneling as per section 9.3.

17.1 ATT Vendor Specific Commands
All ATT commands have the following format:
Name

Size (octets)

Description

Opcode

PDU operation code

connectionHandle

Connection Handle of link

Command PDU

Variable

Command parameters

Note: The connection handle of 0xFFFE is considered as the loopback connection. All messages sent
to this connection will be loop backed to the local host.
For the command parameters, please see the corresponding section below.
Event(s) Generated:
When an ATT command is received, the host will send the Command Status Event with the Status
parameter.
Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

INVALIDPARAMETER

0x04

MSG_BUFFER_NOT_AVAIL

0x13

bleMemAllocError

0x14

bleNotConnected

0x16

blePending

0x19

bleLinkEncrypted

0x40

bleInvalidPDU

0x41

bleInsufficientAuthen

0x42

bleInsufficientEncrypt

0x43

bleInsufficientKeySize

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17.2 ATT Vendor Specific Events
All ATT events have the following format:
Name

Size (octets)

Description

Opcode

PDU operation code

status

Event status

connectionHandle

Connection Handle of link

pduLen

Length of event PDU

Event PDU

Variable

Event parameters

Event Status:
Value

Parameter Description

0x00

SUCCESS

0x14

bleNotConnected

0x17

bleTimeout

0x1A

bleProcedureComplete

For the event parameters, please see the corresponding section below.
Note: The connection handle of 0xFFFE is considered as the loopback connection. All messages sent
to this connection will be loop backed to the local host.

17.3 ATT_ErrorRsp (Command = 0xFD01, Event = 0x0501)
The Error Response is used to state that a given request cannot be performed and to provide the
reason.
Note: The Write Command does not generate an Error Response.
Response Parameters:
reqOpcode: (1 octet)
Value
XX

Parameter Description
The request that generated this error response

handle: (2 octets)
Range
0x0001 – 0xFFFF

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errCode: (1 octet)
Value
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x80

Parameter Description
The attribute handle given was not valid on this server.
The attribute cannot be read.
The attribute cannot be written.
The attribute PDU was invalid.
The attribute requires authentication before it can be read
or written.
Attribute server does not support the request received
from the client.
Offset specified was past the end of the attribute.
The attribute requires authorization before it can be read
or written.
Too many prepare writes have been queued.
No attribute found within the given attribute handle range.
The attribute cannot be read or written using the Read
Blob Request.
The Encryption Key Size used for encrypting this link is
insufficient.
The attribute value length is invalid for the operation.
The attribute request that was requested has encountered
an error that was unlikely, and therefore could not be
completed as requested.
The attribute requires encryption before it can be read or
written.
The attribute type is not a supported grouping attribute as
defined by a higher layer specification.
Insufficient Resources to complete the request.
The attribute value is invalid for the operation.

17.4 ATT_ExchangeMTUReq (Command = 0xFD02, Event = 0x0502)
The Exchange MTU Request is used by the client to inform the server of the client’s maximum receive
MTU size and request the server to respond with its maximum receive MTU size is used to state that a
given request cannot be performed and to provide the reason.
Request Parameters:
clientRxMTU: (2 octets)
Value
XX

Parameter Description
Client receive MTU size

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Event(s) Generated:
When this request is received, the server will send the Exchange MTU Response.

17.5 ATT_ExchangeMTURsp (Command = 0xFD03, Event = 0x0503)
The Exchange MTU Response is sent in reply to a received Exchange MTU Request.
Response Parameters:
serverRxMTU: (2 octets)
Value
XX

Parameter Description
Attribute server receive MTU size

17.6 ATT_FindInfoReq (Command = 0xFD04, Event = 0x0504)
The Find Information Request is used to obtain the mapping of attribute handles with their associated
types. This allows a client to discover the list of attributes and their types on a server.
Request Parameters:
startHandle: (2 octets)
Value
0xXXXX

Parameter Description
First requested handle number

endHandle: (2 octets)
Value
0xXXXX

Parameter Description
Last requested handle number

Event(s) Generated:
When this request is received, the server will send the Find Information Response. The client will
forward all the Find Information Responses to the calling application. The response with the status of
bleProcedureComplete will indicate the end of the sub-procedure.
If no attributes will be returned or any of the requested parameters is invalid, the server will send an
Error Response.

17.7 ATT_FindInfoRsp (Command = 0xFD05, Event = 0x0505)
The Find Information Response is sent in reply to a received Find Information Request and contains
information about the server.

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Response Parameters:
format: (1 octet)
Value
0x01
0x02

Parameter Description
A list of 1 or more handles with their 16-bit Bluetooth
UUIDs
A list of 1 or more handles with their 128-bit UUIDs

info: (4 to (ATT_MTU - 2) octets)
Value
“XX:XX:XX:XX…XX”

Parameter Description
The information data whose format is
determined by the format field

The information data field is comprised of a list of data defined in the tables below depending on the
value chosen for the format.
format = 0x01 (handles and their 16-bit Bluetooth UUIDs)
Handle
2 octets

16-bit Bluetooth UUID
2 octets

format = 0x02 (handles and their 128-bit UUIDs)
Handle
2 octets

128-bit UUID
16 octets

17.8 ATT_FindByTypeValueReq (Command = 0xFD06, Event = 0x0506)
The Find By Type Value Request is used to obtain the handles of attributes that have a 16-bit UUID
attribute type and attribute value. This allows the range of handles associated with a given attribute to be
discovered when the attribute type determines the grouping of a set of attributes.
Request Parameters:
startHandle: (2 octets)
Value
0xXXXX

Parameter Description
First requested handle number

endHandle: (2 octets)
Value
0xXXXX

Parameter Description
Last requested handle number

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type: (2 octets)
Value
“XX:XX”

Parameter Description
2 octet UUID to find

value: (0 to (ATT_MTU - 7) octets)
Value
“XX:XX…XX”

Parameter Description
Attribute value to find

Event(s) Generated:
When this request is received, the server will send the Find By Type Value Response. The client will
forward all the Find By Type Value Responses to the calling application. The response with the status of
bleProcedureComplete will indicate the end of the sub-procedure.
If no attributes will be returned or any of the requested parameters is invalid, the server will send an
Error Response.

17.9 ATT_FindByTypeValueRsp (Command = 0xFD07, Event = 0x0507)
The Find By Type Value Response is sent in reply to a received Find By Type Value Request and
contains information about this server.
Response Parameters:
handlesInfo: (4 to (ATT_MTU - 1) octets)
Value
“XX:XX:XX:XX…XX”

Parameter Description
A list of 1 or more Handle Information.

The Handles Information List field is a list of one or more Handle Information. The Handles Information
field is an attribute handle range as defined in Format of the Handles Information table below:
Format of Handles Information
Found Attribute Handle

Handle Group End Handle

2 octets

17.10 ATT_ReadByTypeReq (Command = 0xFD08, Event = 0x0508)
The Read By Type Request is used to obtain the values of attributes where the attribute type is known
but the handle is not known.
Request Parameters:
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startHandle: (2 octets)
Value
0xXXXX

Parameter Description
First requested handle number

endHandle: (2 octets)
Value
0xXXXX

Parameter Description
Last requested handle number

type: (2 or 16 octets)
Value
“XX:XX” or “XX:XX…XX”

Parameter Description
2 or 16 octet UUID

Event(s) Generated:
When this request is received, the server will send the Read By Type Response. The client will forward
all the Read By Type Responses to the calling application. The response with the status of
bleProcedureComplete will indicate the end of the sub-procedure.
If no attribute with the given type exists within the handle range or the attribute value cannot be read, the
server will send an Error Response.

17.11 ATT_ReadByTypeRsp (Command = 0xFD09, Event = 0x0509)
The Read By Type Response is sent in reply to a received Read By Type Request and contains the
handles and values of the attributes that have been read.
Response Parameters:
length: (1 octet)
Value
0xXX

Parameter Description
The size of each attribute handle-value pair

data: (2 to (ATT_MTU-2) octets)
Value
“XX:XX…XX”

Parameter Description
A list of Attribute Data.

The Attribute Data field is comprised of a list of attribute handle and value pairs as defined in Format of
the Attribute Data table below:
Format of Attribute Data
Attribute Handle

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Attribute Handle

Attribute Value

2 octets

(Length - 2) octets

17.12 ATT_ReadReq (Command = 0xFD0A, Event = 0x050A)
The Read Request is used request the server to read the value of an attribute and return its value in a
Read Response.
Request Parameters:
handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute to be read

Event(s) Generated:
When this request is received, the server will send the Read Response.
If the attribute handle is invalid or the attribute value cannot be read, the server will send an Error
Response.

17.13 ATT_ReadRsp (Command = 0xFD0B, Event = 0x050B)
The Read Response is sent in reply to a received Read Request and contains the value of the attribute
that has been read.
Response Parameters:
value: (0 to (ATT_MTU - 1) octets)
Value
“XX:XX…XX”

Parameter Description
The value of the attribute with the handle given

17.14 ATT_ReadBlobReq (Command = 0xFD0C, Event = 0x050C)
The Read Blob Request is used request the server to read part of the value of an attribute at a given
offset and return a specific part of the value in a Read Blob Response.
Request Parameters:
handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute to be read

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offset: (2 octets)
Value
0xXXXX

Parameter Description
The offset of the first octet to be read

Event(s) Generated:
When this request is received, the server will send the Read Blob Response. The client will forward all
the Read Blob Responses to the calling application. The response with the status of
bleProcedureComplete will indicate the end of the sub-procedure.
If the attribute handle or offset is invalid, or the attribute value cannot be read, the server will send an
Error Response.

17.15 ATT_ReadBlobRsp (Command = 0xFD0D)
The Read Blob Response is sent in reply to a received Read Blob Request and contains part of the
value of the attribute that has been read.
Response Parameters:
value: (0 to (ATT_MTU - 1) octets)
Value
“XX:XX…XX”

Parameter Description
Part of the value of the attribute with the handle given

17.16 ATT_ReadMultiReq (Command = 0xFD0E, Event = 0x050E)
The Read Multiple Request is used to request the server to read two or more values of a set of
attributes and return their values in a Read Multiple Response. Only values that have a known fixed size
can be read, with the exception of the last value that can have a variable length.
Request Parameters:
handles: (4 to (ATT_MTU-1) octets)
Value
“XX:XX:XX:XX…XX”

Parameter Description
A set of two or more attribute handles.

Event(s) Generated:
When this request is received, the server will send the Read Multiple Response.
If any of the attribute handles are invalid or any of the attribute values cannot be read, the server will
send an Error Response.

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17.17 ATT_ReadMultiRsp (Command = 0xFD0F, Event = 0x050F)
The Read Multiple Response is sent in reply to a received Read Multiple Request and contains the
values of the attributes that have been read.
Response Parameters:
values: (0 to (ATT_MTU - 1) octets)
Value

Parameter Description
A set of two or more values.

“XX…XX”

17.18 ATT_ReadByGrpTypeReq (Command = 0xFD10, Event = 0x0510)
The Read By Group Type Request is used to obtain the values of attributes where the attribute type is
known, the type of a grouping attribute as defined by a higher layer specification, but the handle is not
known.
Request Parameters:
startHandle: (2 octets)
Value

Parameter Description
First requested handle number

0xXXXX
endHandle: (2 octets)
Value

Parameter Description
Last requested handle number

0xXXXX
groupType: (2 or 16 octets)
Value
“XX:XX” or “XX:XX…XX”

Parameter Description
2 or 16 octet UUID

Event(s) Generated:
When this request is received, the server will send the Read By Group Type Response. The client will
forward all the Read By Group Type Responses to the calling application. The response with the status
of bleProcedureComplete will indicate the end of the sub-procedure.
If no attributes with the given type exists within the handle ranges or the Attribute Group Type is not a
supported grouping attribute, the server will send an Error Response.

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17.19 ATT_ReadByGrpTypeRsp (Command = 0xFD11, Event = 0x0511)
The Read By Group Type Response is sent in reply to a received Read By Group Type Request and
contains the handles and values of the attributes that have been read.
Response Parameters:
length: (1 octet)
Value
0xXX

Parameter Description
The size of each attribute handle-value pair

attrData: (2 to (ATT_MTU - 2) octets)
Value
“XX:XX:…XX”

Parameter Description
A list of Attribute Data.

The Attribute Data field is comprised of a list of attribute handle and value pairs as defined in Format of
the Attribute Data table below:
Format of Attribute Data
Attribute Handle

End Group Handle

Attribute Value

2 octets

(Length - 4) octets

17.20 ATT_WriteReq (Command = 0xFD12, Event = 0x0512)
The Write Request is used to request the server to write the value of an attribute and acknowledge that
this has been achieved in a Write Response.
The command field is set for the Write Command. The signature and command fields are set for the
Signed Write Command.
Request Parameters:
The signature field represents different data as defined in the tables below depending on the type of the
message.
signature: (1 octet) – when the field is part of a command
Value
0x00
0x01

Parameter Description
Do not include the Authentication Signature with the Write
PDU.
Include the Authentication Signature with the Write PDU.

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Value
0x00
0x01
0x02

Parameter Description
The Authentication Signature is not included with the
Write PDU.
The included Authentication Signature is valid.
The included Authentication Signature is not valid.

command: (1 octet)
Value
0x00 or 0x01

Parameter Description
Whether this is a Write Command:
 0x00 - No
 0x01 - Yes

handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute to be Written.

value: (0 to (ATT_MTU - 3) octets)
Value
“XX…XX”

Parameter Description
The value to be written to the attribute.

Event(s) Generated:
When this request is received, the server will send the Write Response.
If the attribute handle is invalid or the attribute value cannot be written, the server will send an Error
Response. The server will not send an Error Response for the Write Command.

17.21 ATT_WriteRsp (Command = 0xFD13, Event = 0x0513)
The Write Response is sent in reply to a valid Write Request and acknowledges that the attribute has
been successfully written.
Response Parameters:
None

17.22 ATT_PrepareWriteReq (Command = 0xFD16, Event = 0x0516)
The Prepare Write Request is used to request the server to prepare to write the value of an attribute.
The server will respond to this request with a Prepare Write Response, so that the client can verify that
the value was received correctly.
A client may send more than one Prepare Write Request to a server, which will queue and send a
response for each handle value pair.
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Request Parameters:
handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute to be Written.

offset: (2 octets)
Value
0xXXXX

Parameter Description
The offset of the first octet to be Written.

value: (0 to (ATT_MTU - 5) octets)
Value
“XX…XX”

Parameter Description
Part of the value of the attribute to be written.

Event(s) Generated:
When this request is received, the server will send the Prepare Write Response. The client will forward
the response to the calling application only when the compile option TESTMODES is used.
If the attribute handle is invalid or the attribute value cannot be written, the server will send an Error
Response.

17.23 ATT_PrepareWriteRsp (Command = 0xFD17, Event = 0x0517)
The Prepare Write Response is sent in response to a received Prepare Write Request and
acknowledges that the value has been successfully received and placed in the prepare write queue.
Response Parameters:
handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute to be Written.

offset: (2 octets)
Value
0xXXXX

Parameter Description
The offset of the first octet to be Written.

value: (0 to (ATT_MTU - 5) octets)
Value
“XX…XX”

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17.24 ATT_ExecuteWriteReq (Command = 0xFD18, Event = 0x0518)
The Execute Write Request is used to request the server to write or cancel the write of all the prepared
values currently held in the prepare queue from this client. This request shall be handled by the server
as an atomic operation.
Request Parameters:
flags: (1 octet)
Value
0x00
0x01

Parameter Description
Cancel all prepared writes
Immediately write all pending prepared values

Event(s) Generated:
When this request is received, the server will send the Execute Write Response.
If the attribute value cannot be written, the server will send an Error Response.

17.25 ATT_ExecuteWriteRsp (Command = 0xFD19, Event = 0x0519)
The Execute Write Response is sent in response to a received Execute Write Request.
Response Parameters:
None

17.26 ATT_HandleValueNoti (Command = 0xFD1B, Event = 0x051B)
A server can send a notification of an attribute’s value at any time.
Request Parameters:
authenticated: (1 octet)
Value
0x00 or 0x01

Parameter Description
Whether or not an authenticated link is required:
 0x00 - No
 0x01 - Yes

handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute.

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value: (0 to (ATT_MTU - 3) octets)
Value
“XX…XX”

Parameter Description
The current value of the attribute.

Event(s) Generated:
None

17.27 ATT_HandleValueInd (Command = 0xFD1D, Event = 0x051D)
A server can send an indication of an attribute’s value at any time.
Request Parameters:
authenticated: (1 octet)
Value
0x00 or 0x01

Parameter Description
Whether or not an authenticated link is required:
 0x00 - No
 0x01 - Yes

handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute.

value: (0 to (ATT_MTU - 3) octets)
Value
“XX…XX”

Parameter Description
The current value of the attribute.

Event(s) Generated:
The client shall send a Handle Value Confirmation in response to a Handle Value Indication. No further
indications to this client shall occur until the confirmation has been received by the server.

17.28 ATT_HandleValueCfm (Command = 0xFD1E, Event = 0x051E)
The Handle Value Confirmation is sent in response to a received Handle Value Indication and confirms
that the client has received an indication of the given attribute.
Request Parameters:
None
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18. GATT Vendor Specific Commands
All GATT commands have the following format:
Name

Size (octets)

Description

Opcode

PDU operation code

connectionHandle

Connection Handle of link

Command PDU

Variable

Command parameters

Note: The connection handle of 0xFFFE is considered as the loopback connection. All messages sent
to this connection will be loop backed to the local host.
For the command parameters, please see the corresponding section below.
Event(s) Generated:
When a GATT command is received, the host will send the Command Status Event with the Status
parameter.
Return Parameters:
Status: (1 octet)
Value

Parameter Description

0x00

SUCCESS

0x02

INVALIDPARAMETER

0x04

MSG_BUFFER_NOT_AVAIL

0x13

bleMemAllocError

0x14

bleNotConnected

0x40

bleInvalidPDU

18.1 GATT_ExchangeMTU (0xFD82)
This sub-procedure is used by a client to set the ATT_MTU to the maximum possible value that can be
supported by both devices when the client supports a value greater than the default ATT_MTU for the
Attribute Protocol. This sub-procedure shall only be initiated once during a connection.
The ATT Exchange MTU Request is used by this sub-procedure.
Request Parameters:
Please refer to Section 17.4 for the format of the request parameters.
Event(s) Generated:
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This sub-procedure is complete when either ATT_ExchangeMTURsp (with SUCCESS or bleTimeout
status) or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.2 GATT_DiscAllPrimaryServices (0xFD90)
This sub-procedure is used by a client to discover all the primary services on a server.
The ATT Read By Group Type Request is used with the Attribute Type parameter set to the UUID for
"Primary Service". The Starting Handle is set to 0x0001 and the Ending Handle is set to 0xFFFF.
Request Parameters:
None.
Event(s) Generated:
This sub-procedure is complete when either ATT_ReadByGrpTypeRsp (with bleProcedureComplete or
bleTimeout status) or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.3 GATT_DiscPrimaryServiceByUUID (0xFD86)
This sub-procedure is used by a client to discover a specific primary service on a server when only the
Service UUID is known. The specific primary service may exist multiple times on a server. The primary
service being discovered is identified by the service UUID.
The ATT Find By Type Value Request is used with the Attribute Type parameter set to the UUID for
"Primary Service" and the Attribute Value set to the 16-bit Bluetooth UUID or 128-bit UUID for the
specific primary service. The Starting Handle shall be set to 0x0001 and the Ending Handle shall be set
to 0xFFFF.
Request Parameters:
value: (0 to (ATT_MTU - 7) octets)
Value
“XX:XX…XX”

Parameter Description
Attribute value to find

Event(s) Generated:
This sub-procedure is complete when either ATT_FindByTypeValueRsp (with bleProcedureComplete or
bleTimeout status) or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.4 GATT_FindIncludedServices (0xFDB0)
This sub-procedure is used by a client to find include service declarations within a service definition on a
server. The service specified is identified by the service handle range.

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The ATT Read By Type Request is used with the Attribute Type parameter set to the UUID for "Included
Service". The Starting Handle is set to starting handle of the specified service and the Ending Handle is
set to the ending handle of the specified service.
Request Parameters:
startHandle: (2 octets)
Value
0xXXXX

Parameter Description
First requested handle number

endHandle: (2 octets)
Value
0xXXXX

Parameter Description
Last requested handle number

Event(s) Generated:
This sub-procedure is complete when either ATT_ReadByTypeRsp (with bleProcedureComplete or
bleTimeout status) or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.5 GATT_DiscAllChars (0xFDB2)
This sub-procedure is used by a client to find all the characteristic declarations within a service definition
on a server when only the service handle range is known. The service specified is identified by the
service handle range.
The ATT Read By Type Request is used with the Attribute Type parameter set to the UUID for
"Characteristic". The Starting Handle is set to starting handle of the specified service and the Ending
Handle is set to the ending handle of the specified service.
Request Parameters:
startHandle: (2 octets)
Value
0xXXXX

Parameter Description
First requested handle number

endHandle: (2 octets)
Value
0xXXXX

Parameter Description
Last requested handle number

TI BLE HCI Vendor Specific HCI Guide

18.6 GATT_DiscCharsByUUID (0xFD88)
This sub-procedure is used by a client to discover service characteristics on a server when only the
service handle ranges are known and the characteristic UUID is known. The specific service may exist
multiple times on a server. The characteristic being discovered is identified by the characteristic UUID.
The ATT Read By Type Request is used with the Attribute Type is set to the UUID for "Characteristic"
and the Starting Handle and Ending Handle parameters is set to the service handle range.
Request Parameters:
startHandle: (2 octets)
Value
0xXXXX

Parameter Description
First requested handle number

endHandle: (2 octets)
Value
0xXXXX

Parameter Description
Last requested handle number

type: (2 or 16 octets)
Value
“XX:XX” or “XX:XX…XX”

Parameter Description
2 or 16 octet UUID

18.7 GATT_DiscAllCharDescs (0xFD84)
This sub-procedure is used by a client to find all the characteristic descriptor’s Attribute Handles and
Attribute Types within a characteristic definition when only the characteristic handle range is known. The
characteristic specified is identified by the characteristic handle range.
The ATT Find Information Request is used with the Starting Handle set to starting handle of the
specified characteristic and the Ending Handle set to the ending handle of the specified characteristic.
The UUID Filter parameter is NULL (zero length).
Request Parameters:
Please refer to Section 17.6 for the format of the request parameters.
Event(s) Generated:
This sub-procedure is complete when either ATT_FindInfoRsp (with bleProcedureComplete or
bleTimeout status) or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.
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18.8 GATT_ReadCharValue (0xFD8A)
This sub-procedure is used to read a Characteristic Value from a server when the client knows the
Characteristic Value Handle. The ATT Read Request is used with the Attribute Handle parameter set to
the Characteristic Value Handle. The Read Response returns the Characteristic Value in the Attribute
Value parameter.
The Read Response only contains a Characteristic Value that is less than or equal to (ATT_MTU – 1)
octets in length. If the Characteristic Value is greater than (ATT_MTU – 1) octets in length, the Read
Long Characteristic Value procedure may be used if the rest of the Characteristic Value is required.
Request Parameters:
Please refer to Section 17.12 for the format of the request parameters.
Event(s) Generated:
This sub-procedure is complete when either ATT_ReadRsp (with bleProcedureComplete or bleTimeout
status) or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.9 GATT_ReadUsingCharUUID (0xFDB4)
This sub-procedure is used to read a Characteristic Value from a server when the client only knows the
characteristic UUID and does not know the handle of the characteristic.
The ATT Read By Type Request is used to perform the sub-procedure. The Attribute Type is set to the
known characteristic UUID and the Starting Handle and Ending Handle parameters shall be set to the
range over which this read is to be performed. This is typically the handle range for the service in which
the characteristic belongs.
Request Parameters:
Please refer to Section 17.10 for the format of the request parameters.
Event(s) Generated:
This sub-procedure is complete when either ATT_ReadByTypeRsp (with bleProcedureComplete or
bleTimeout status) or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.10 GATT_ReadLongCharValue (0xFD8C)
This sub-procedure is used to read a Characteristic Value from a server when the client knows the
Characteristic Value Handle and the length of the Characteristic Value is longer than can be sent in a
single Read Response Attribute Protocol message.
The ATT Read Blob Request is used in this sub-procedure.

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Request Parameters:
Please refer to Section 17.14 for the format of the request parameters.
Event(s) Generated:
This sub-procedure is complete when either ATT_ReadBlobRsp (with bleProcedureComplete or
bleTimeout status) or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.11 GATT_ReadMultiCharValues (0xFD8E)
This sub-procedure is used to read multiple Characteristic Values from a server when the client knows
the Characteristic Value Handles. The Attribute Protocol Read Multiple Requests is used with the Set Of
Handles parameter set to the Characteristic Value Handles. The Read Multiple Response returns the
Characteristic Values in the Set Of Values parameter.
The ATT Read Multiple Request is used in this sub-procedure.
Request Parameters:
Please refer to Section 17.16 for the format of the request parameters.
Event(s) Generated:
This sub-procedure is complete when either ATT_ReadMultiRsp (with SUCCESS or bleTimeout status)
or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.12 GATT_WriteNoRsp (0xFDB6)
This sub-procedure is used to write a Characteristic Value to a server when the client knows the
Characteristic Value Handle and the client does not need an acknowledgement that the write was
successfully performed. This sub-procedure only writes the first (ATT_MTU – 3) octets of a
Characteristic Value. This sub-procedure can not be used to write a long characteristic; instead the
Write Long Characteristic Values sub-procedure should be used.
The ATT Write Command is used for this sub-procedure. The Attribute Handle parameter shall be set to
the Characteristic Value Handle. The Attribute Value parameter shall be set to the new Characteristic
Value.
Request Parameters:
handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute to be Written.

value: (0 to (ATT_MTU - 3) octets)
Value

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Value
“XX…XX”

Parameter Description
The value to be written to the attribute.

Event(s) Generated:
No response will be sent to the calling application task for this sub-procedure. If the Characteristic Value
write request is the wrong size, or has an invalid value as defined by the profile, then the write will not
succeed and no error will be generated by the server.

18.13 GATT_SignedWriteNoRsp (0xFDB8)
This sub-procedure is used to write a Characteristic Value to a server when the client knows the
Characteristic Value Handle and the ATT Bearer is not encrypted. This sub-procedure shall only be
used if the Characteristic Properties authenticated bit is enabled and the client and server device share
a bond as defined in the GAP.
This sub-procedure only writes the first (ATT_MTU – 15) octets of an Attribute Value. This subprocedure cannot be used to write a long Attribute.
The ATT Write Command is used for this sub-procedure. The Attribute Handle parameter shall be set to
the Characteristic Value Handle. The Attribute Value parameter shall be set to the new Characteristic
Value authenticated by signing the value, as defined in the Security Manager.
Request Parameters:
handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute to be Written.

value: (0 to (ATT_MTU - 3) octets)
Value
“XX…XX”

Parameter Description
The value to be written to the attribute.

Event(s) Generated:
No response will be sent to the calling application task for this sub-procedure. If the authenticated
Characteristic Value that is written is the wrong size, or has an invalid value as defined by the profile, or
the signed value does not authenticate the client, then the write will not succeed and no error will be
generated by the server.

18.14 GATT_WriteCharValue (0xFD92)
This sub-procedure is used write a characteristic value to a server when the client knows the
characteristic value handle. This sub-procedure only writes the first (ATT_MTU-3) octets of a
characteristic value. This sub-procedure can not be used to write a long attribute; instead the Write Long
Characteristic Values sub-procedure should be used.
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The ATT Write Request is used in this sub-procedure. The Attribute Handle parameter shall be set to
the Characteristic Value Handle. The Attribute Value parameter shall be set to the new characteristic.
Request Parameters:
Please refer to Section 17.20 for the format of the request parameters.
Event(s) Generated:
This sub-procedure is complete when either ATT_WriteRsp (with SUCCESS or bleTimeout status) or
ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.15 GATT_WriteLongCharValue (0xFD96)
This sub-procedure is used to write a Characteristic Value to a server when the client knows the
Characteristic Value Handle but the length of the Characteristic Value is longer than can be sent in a
single Write Request Attribute Protocol message.
The ATT Prepare Write Request and Execute Write Request are used to perform this sub-procedure.
Request Parameters:
handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute to be Written.

offset: (2 octets)
Value
0xXXXX

Parameter Description
The offset of the first octet to be Written.

value: (0 to 512 octets)
Value
“XX…XX”

Parameter Description
The value of the attribute to be written. Note: the stack
implementation supports the maximum length of 512
octets but this is always bound by the physical interface
used to communicate with the device.

Event(s) Generated:
This sub-procedure is complete when either ATT_PrepareWriteRsp (with bleTimeout status),
ATT_ExecuteWriteRsp (with SUCCESS or bleTimeout status), or ATT_ErrorRsp (with SUCCESS
status) is received by the calling application task.

TI BLE HCI Vendor Specific HCI Guide

18.16 GATT_ReliableWrites (0xFDBA)
This sub-procedure is used to write a Characteristic Value to a server when the client knows the
Characteristic Value Handle, and assurance is required that the correct Characteristic Value is going to
be written by transferring the Characteristic Value to be written in both directions before the write is
performed. This sub-procedure can also be used when multiple values must be written, in order, in a
single operation.
The sub-procedure has two phases; the first phase prepares the characteristic values to be written.
Once this is complete, the second phase performs the execution of all of the prepared characteristic
value writes on the server from this client.
In the first phase, the ATT Prepare Write Request is used. In the second phase, the attribute protocol
Execute Write Request is used.
Request Parameters:
numberRequests: (1 octet)
Value

Parameter Description
The number of Prepare Write Request messages.

0xXX
requests: (0 to 512 octets)
Value
“XX:XX:…XX”

Parameter Description
A list of Prepare Write Request messages. Note: the
stack implementation supports the maximum length of
512 octets but this is always bound by the physical
interface used to communicate with the device.

The Requests field is comprised of a list of Attribute Value Length and Prepare Write Request as
defined in Format of the Requests table below:
Format of Requests
Attribute Value Length

Prepare Write Request

1 octet

Please see Section 17.22 for the format of Prepare Write
Request

18.17 GATT_ReadCharDesc (0xFDBC)
This sub-procedure is used to read a Characteristic Descriptor from a server when the client knows the
Characteristic Descriptor’s Handle.
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The ATT Read Request is used for this sub-procedure. The Read Request is used with the Attribute
Handle parameter set to the characteristic descriptor handle. The Read Response returns the
characteristic descriptor value in the Attribute Value parameter.
Request Parameters:
Please refer to Section 17.12 for the format of the request parameters.
Event(s) Generated:
This sub-procedure is complete when either ATT_ReadRsp (with bleProcedureComplete or bleTimeout
status) or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.18 GATT_ReadLongCharDesc (0xFDBE)
This sub-procedure is used to read a Characteristic Descriptor from a server when the client knows the
Characteristic Descriptor Declaration’s Attribute Handle and the length of the Characteristic Descriptor
Declaration is longer than can be sent in a single Read Response Attribute Protocol message.
The ATT Read Blob Request is used to perform this sub-procedure. The Attribute Handle parameter
shall be set to the characteristic descriptor handle. The Value Offset parameter shall be the offset within
the characteristic descriptor to be read.
Request Parameters:
Please refer to Section 17.14 for the format of the request parameters.
Event(s) Generated:
This sub-procedure is complete when either ATT_ReadBlobRsp (with bleProcedureComplete or
bleTimeout status) or ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.

18.19 GATT_WriteCharDesc (0xFDC0)
This sub-procedure is used write a characteristic descriptor to a server when the client knows the
characteristic descriptor handle.
The ATT Write Request is used for this sub-procedure. The Attribute Handle parameter shall be set to
the characteristic descriptor handle. The Attribute Value parameter shall be set to the new characteristic
descriptor value.
Request Parameters:
Please refer to Section 17.20 for the format of the request parameters.
Event(s) Generated:
This sub-procedure is complete when either ATT_WriteRsp (with SUCCESS or bleTimeout status) or
ATT_ErrorRsp (with SUCCESS status) is received by the calling application task.
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18.20 GATT_WriteLongCharDesc (0xFDC2)
This sub-procedure is used to write a Characteristic Value to a server when the client knows the
Characteristic Value Handle but the length of the Characteristic Value is longer than can be sent in a
single Write Request Attribute Protocol message.
The ATT Prepare Write Request and Execute Write Request are used to perform this sub-procedure.
Request Parameters:
handle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the attribute to be Written.

offset: (2 octets)
Value
0xXXXX

Parameter Description
The offset of the first octet to be Written.

value: (0 to 512 octets)
Value
“XX…XX”

18.21 GATT_Notification (0xFD9B)
This sub-procedure is used when a server is configured to notify a characteristic value to a client without
expecting any attribute protocol layer acknowledgement that the notification was successfully received.
The ATT Handle Value Notification is used in this sub-procedure.
Note: A notification may be sent at any time and does not invoke a confirmation.
Request Parameters:
Please refer to Section 17.26 for the format of the request parameters.
Event(s) Generated:
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None.

18.22 GATT_Indication (0xFD9D)
This sub-procedure is used when a server is configured to indicate a characteristic value to a client and
expects an attribute protocol layer acknowledgement that the indication was successfully received.
The ATT Handle Value Indication is used in this sub-procedure.
Request Parameters:
Please refer to Section 17.27 for the format of the request parameters.
Event(s) Generated:
This sub-procedure is complete when ATT_HandleValueCfm (with SUCCESS or bleTimeout status) is
received by the calling application task.

18.23 GATT_AddService (0xFDFC)
This command is used to add a new service to the GATT Server on the Network Processor when the
GATT Database is implemented on the Application Processor. The GATT_AddAttribute command
described in Section 18.25 must be used to add additional attributes to the service. The new service will
be automatically registered with the GATT Server if it has no additional attribute to be added.
Note: The Command Status Event will have the Start Handle and End Handle for the service registered
with the GATT Server.
No ATT request is used to perform this command.
Request Parameters:
UUID: (2 octets)
Value
“00:28” or “01:28”

Parameter Description
The type of the service to be added:
 0x2800 – Primary Service
 0x2801 – Secondary Service

numAttrs: (2 octets)
Value
“XX:XX”

Parameter Description
The number of the attributes in the service (including the
service attribute).

Event(s) Generated:
None.

TI BLE HCI Vendor Specific HCI Guide

18.24 GATT_DelService (0xFDFD)
This command is used to delete a service from the GATT Server on the Network Processor when the
GATT Database is implemented on the Application Processor.
No ATT request is used to perform this command.
Request Parameters:
handle: (2 octets)
Value
“XX:XX”

Parameter Description
The handle of the service to be deleted (0x0000 if the
service hasn’t been registered with the GATT Server yet).

Event(s) Generated:
None.

18.25 GATT_AddAttribute (0xFDFE)
This command is used to add a new attribute to the service being added to the GATT Server on the
Network Processor when the GATT Database is implemented on the Application Processor. The service
will be automatically registered with the GATT Server when its last attribute is added.
Note: The Command Status Event will have the Start Handle and End Handle for the service registered
with the GATT Server.
No ATT request is used to perform this command.
Request Parameters:
UUID: (2 or 16 octets)
Value
“XX:XX” or “XX:…:XX”

Parameter Description
The type of the attribute to be added to a service.

permissions: Bit Mask (1 octet)
Value

Parameter Description

0x01

GATT_PERMIT_READ

0x02

GATT_PERMIT_WRITE

0x04

GATT_PERMIT_AUTHEN_READ

0x08

GATT_PERMIT_AUTHEN_WRITE

0x10

GATT_PERMIT_AUTHOR_READ

0x20

GATT_PERMIT_AUTHOR_WRITE

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None.

TI BLE HCI Vendor Specific HCI Guide

19. GATT Vendor Specific Events
All GATT events have the following format:
Name

Size (octets)

Description

Opcode

PDU operation code

status

Event status

connectionHandle

Connection Handle of link

pduLen

Length of event PDU

Event PDU

Variable

Event parameters

Event Status:
Value

Parameter Description

0x00

SUCCESS

0x14

bleNotConnected

0x17

bleTimeout

0x1A

bleProcedureComplete

19.1 GATT_ClientCharCfgUpdated (0x0580)
The Client Characteristic Configuration Updated event is generated whenever the Client Characteristic
Configuration attribute value is updated for a connection (i.e., GATT client).
Response Parameters:
attributeHandle: (2 octets)
Value
0xXXXX

Parameter Description
The handle of the Client Characteristic Configuration
attribute

value: Bit Mask (2 octets)
Value

Parameter Description

0x0000

No operation

0x0001

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Value

Parameter Description

0x0002

The Characteristic Value is configured to be indicated

0xFFF4

Reserved for future use

TI BLE HCI Vendor Specific HCI Guide

20. Host Error Codes
This section lists the various possible error codes generated by the Host. If an HCI extension command
that sent a Command Status with the error code ‘SUCCESS’ before processing may find an error during
execution then the error is reported in the normal completion command for the original command.
The error code 0x00 means SUCCESS. The possible range of failure error codes is 0x01-0xFF. The
table below provides an error code description for each failure error code.
Value

Parameter Description

0x00

SUCCESS

0x00

FAILURE

0x02

INVALIDPARAMETER

0x03

INVALID_TASK

0x04

MSG_BUFFER_NOT_AVAIL

0x05

INVALID_MSG_POINTER

0x06

INVALID_EVENT_ID

0x07

INVALID_INTERRUPT_ID

0x08

NO_TIMER_AVAIL

0x09

NV_ITEM_UNINIT

0x0A

NV_OPER_FAILED

0x0B

INVALID_MEM_SIZE

0x0C

NV_BAD_ITEM_LEN

0x10

bleNotReady

0x11

bleAlreadyInRequestedMode

0x12

bleIncorrectMode

0x13

bleMemAllocError

0x14

bleNotConnected

0x15

bleNoResources

0x16

blePending

0x17

bleTimeout

0x18

bleInvalidRange

0x19

bleLinkEncrypted

0x1A

bleProcedureComplete

0x30

bleGAPUserCanceled

0x31

bleGAPConnNotAcceptable

0x32

bleGAPBondRejected

0x40

TI BLE HCI Vendor Specific HCI Guide
0x41

bleInsufficientAuthen

0x42

bleInsufficientEncrypt

0x43

bleInsufficientKeySize

0xFF

INVALID_TASK_ID
Table 8: List of Possible Host Error Codes

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