Silicon Laboratories SI2493/57/34/15/04 User Manual
Page 11
Si2493/57/34/15/04
Global ISOmodem-EVB
Rev. 0.6
11
Table 4. Voice Commands
AT Commands
Purposes
AT:U71,11
Configure modem to send/receive data in linear mode to/from Si3000
interface
AT*Y254:W0059,7785
Enable Si2457 modem TDMA’s interface by setting LSBit of memory
0x0059
AT*Y254:W004B,011C
Write to Si3000 Control Reg1: Line Driver, Handset Driver, and Micro-
phone Bias Normal Operations are enabled.
AT*Y254:W004B,0200
Write to Si3000 Control Reg2: HPF enabled, PLL divided by 5, Digital
Loopback Off
AT*Y254:W004B,0300
Write to Si3000 Control Reg3: PLL Divider N1
AT*Y254:W004B,0400
Write to Si3000 Control Reg4: PLL Divider M1
AT*Y254:W004B,055A
Write to Si3000 Control Reg5: Line-In, Mic-In, Handset-In, FIR are acti-
vated.
AT*Y254:W004B,067F
Write to Si3000 Control Reg6: Line-Out, Handset-Out are activated.
AT*Y254:W004B,075F
Write to Si3000 Control Reg7: SPKR_L, SPLR_R are activated.
ATH1
Off-hook command for calling
AT.1
Dial individual number 1
AT.0
Dial individual number 0
AT.4
Dial individual number 4 and wait for answer