Si2403
Table 11. Extended AT\ Command Set (Command Defaults in Bold) (Continued)
Command
Action
\Q3 Use RTS/CTS
\Q4 Use XON/XOFF flow control for modem-to-DTE interface. Does not enable modem-to-modem flow
control.
\Tn
DTE rate - Change DTE rate. When changing rates, the result code “OK” is sent at the old DTE rate.
All options except \T16 lock the DTE to the given rate, and subsequent commands must be sent at
this rate. When \T16 is used (or at reset when pin 16 is pulled down), automatic bandrate detection
is used for subsequent commands.
\T0
300 bps
\T1
600 bps
\T2
1200 bps
\T3
2400 bps
\T4
4800 bps
\T5
7200 bps
\T6
9600 bps
\T7
12.0 kbps2
\T8
14.4 kbps
\T9
19.2 kbps3
\T10 38.4 kbps
\T11 57.6 kbps
\T12 115.2 kbps
\T13
\T14
230.4 kbps
245.760 kbps2
\T15
\T16
307.200 kbps
Autobaud on3
\T17 Autobaud off; lock at current baud rate.
Notes:
1. When in autobaud mode, \B0, \B1, and \P1 will not be detected automatically. The combination of \B2 and \P3 will be
detected. This is compatible with seven data bits, no parity, two stop bits. Seven data bits, no parity, one stop bit may be
forced by sending AT\T17\B1.
2. The autobaud feature does not detect this rate.
3. Default is \T16 if a pulldown is connected to pin 16; otherwise, the default is \T9.
30
Rev. 1.2