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DLBM-CG121 Schematic ( PDF Datasheet ) - ETC

Teilenummer DLBM-CG121
Beschreibung A Class 2 Bluetooth module suitable for cellular phone / smart phone applications
Hersteller ETC
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Gesamt 40 Seiten
DLBM-CG121 Datasheet, Funktion
DLBM-CG121
Bluetooth TM Module Class 2
A Class 2 BluetoothTM module suitable
for cellular phone, smart phone
applications.
Preliminary
DLBM-CG121
1.FEATURES:
Support DUN, SPP, AG & FAX profiles.
Minimal software effort to own Bluetooth functions.
Almost no resource required from host CPU.
Reducing the size and thickness greatly by using high-density
packaging technology.
Compliant to various interfaces: UART, USB, PCM ...etc.
Wide operating temperature range: -30~+80.
2.Device diagram
BC 3-H andphone
Figure 1. DLBM-CG121 Block Diagram
Data Sheet
July 30, 2004
Proprietary Information and Specifications are Subject to Change






DLBM-CG121 Datasheet, Funktion
8.Application circuit
Preliminary
DLBM-CG121
Figure3.1.8V Supply
Data Sheet
July 30, 2004
Proprietary Information and Specifications are Subject to Change

6 Page









DLBM-CG121 pdf, datenblatt
Preliminary
DLBM-CG121
13.2 Setting PSKeys
Setting the PSKEYS consist of three elements in the AT+SETPS command. These elements
are:
The Pskey address which is a four digit word formatted in ASCII that represents the
address of the key to be set. Therefore, to change the contents of address 0x0108, this
field will be set to “0108”.
The data string which is made up of multiples of four digit words. These word will be filled in
the respective PSKey address’s data field. E.g. “000112349876” will enter the word 0001
1234 9876 into the selected PSKEY.
The store type. Typically this should be set to 8 to select the Ram are of PSKEYS.
An example of setting the PSKEYS is to set the crystal frequency trim :-
AT+SETPS=01f6,001d,0008.
To set a string value such as the friendly name, the host must prefix the data field with ‘s’ i.e.
AT+SETPS =0108,sHandphone,0008. This will change the friendly name to “Handphone”
To read a PSKEY, the host must use the AT+GETPS command e.g. AT+GETPS=01f6 will
return the crystal frequency trim value.
To initiate a warm reset, the host must use the BCCMD protocol using the varid 0x4002 e.g.
AT+BCCMD=4002,0002,0000.
One of the field that must be set is the supported profiles list or PSKey address 0x028d
Data Sheet
July 30, 2004
Proprietary Information and Specifications are Subject to Change

12 Page





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