DVK-BTM521 Laird Technologies, DVK-BTM521 Datasheet - Page 97

• Manufacturer Part Number: DVK-BTM521
• Description: BT MM DEV KIT
• Manufacturer: Laird Technologies
• Type: Transceiver, Bluetoothr

Specifications of DVK-BTM521

• Frequency: 2.4GHz
• Interface Type: RS-232
• Processor Series: BTM521
• Silicon Manufacturer: Laird Technologies
• Kit Application Type: Communication & Networking
• Application Sub Type: Bluetooth
• Kit Contents: Development Board & Software Tools
• Features: Supports CSR
• Rohs Compliant: Yes
• For Use With/related Products: BTM521
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: DVK-BTM521

BTM520/521
Bluetooth
AT COMMAND SET
REFERENCE
97 www.lairdtech.com
®
Multimedia Plus Module
Appendix
General S Registers
The following table lists all general S Registers. Please not that this is not a complete listing of S Registers.
Additional S registers, associated with a certain profile or feature are described in the appropriate section above.
Register
S2
S12
S101
S102
S103
S325
S326
S327
S328
S329
S330
S331
Deflt.
94
100
$1101
Depending
on module
variant
1
1
1
1
1
0
1
2
Range
32..126
40..5000
$0..$ffff
Depending
on supported
profiles
1..4
0..1
0..1
0..1
0..1
0..1
1..31
0..2
Description
Escape sequence character. It is not ‘+’ by default as a Bluetooth
serial link can be used to connect to a mobile phone which exposes
an AT command set, which will in turn use ‘+’ as default. So if both
used ‘+’ there will be confusion. 0x5e is the character ‘^’.
Escape sequence guard time in milliseconds, with a granularity of
20ms. New values are rounded down to the nearest 20ms multiple
UUID of default SPP based profile when not specified explicitly in
the ATD command.
Defines a set of bits masks for enabling profiles. Values can be
ORed.
A profile can be enabled only if it is supported by the BTM variant.
Issue AT&W and ATZ in order to make the new setting effective.
0x001 is Serial Port Profile
0x002 is Headset (“HS”)
0x004 is DUN
0x008 is Audio Gateway (Headset, ”HSG”)
0x010 is Handsfree (“HF”)
0x020 is OBEX FTP
0x040 is Audio Gateway (Handsfree, “HFG”)
0x080 is A2DP
0x100 is AVRCP
0x200 is PBAP
0x400 is HID
Boot Mode on cold boot
Boot modes are required to configure some low level device
settings which cannot be configured by S registers and AT
commands. Currently there are predefined settings defining the
PCM data format to be used with certain codec ICs (applies
mainly to BC04).
1
2..4 – for future customization of the module
Store link key automatically on dedicated bonding outgoing (DBO)
Store link key automatically on general bonding outgoing (GBO)
Store link key automatically on dedicated bonding incoming (DBI)
Store link key automatically on general bonding incoming (GBI)
Enable legacy (BISM2) response format
Configure inquiry response of AT+BTI (Bitmask):
1 - show device address
2 - show class of device
4 - show friendly name
8 - show extended inquiry data
Values can be ORed
Direction indication style for “CONNECT” messages
0 – disabled
1 – character style: append ‘I’ to incoming and ‘O’ to outgoing
CONNECT message, separated by a comma
2 – symbol style: append ‘<’ to incoming and ‘>’ to outgoing
CONNECT message, separated by a comma
applies only to role indicating UUID (e.g.HSP/HFP) and if S329=0
– normal
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