si2439-a-gm Silicon Laboratories, si2439-a-gm Datasheet - Page 47
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si2439-a-gm
Manufacturer Part Number
si2439-a-gm
Description
V.92 And V.34 Isomodem With Global Daa
Manufacturer
Silicon Laboratories
Datasheet
1.SI2439-A-GM.pdf
(70 pages)
- Current page: 47 of 70
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Notes:
Command
1. When in autobaud mode, \B0, \B1, and \P1 will not be detected automatically. The combination of \B2 and \P3 will be
2. The autobaud feature does not detect this rate.
3. Default is \T9 if a pulldown resistor is connected to the autobaud strap pin; otherwise, the default is \T16.
\T10
\T11
\T12
\T13
\T14
\T15
\T16
\T17
\Q3
\Q4
\Tn
\T0
\T1
\T2
\T3
\T4
\T5
\T6
\T7
\T8
\T9
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.
Table 13. Extended AT\ Command Set (Command Defaults in Bold) (Continued)
Use RTS/CTS
Use XON/XOFF flow control for modem-to-DTE interface. Does not enable modem-to-modem flow
control.
DTE rate—Change DTE rate. When the Si2494/39 is configured in autobaud mode (default), \T0
through \T15 will lock the new baud rate and disable autobaud. When the ISOmodem
autobaud mode (the autobaud strap pin low on powerup), the result code “OK” is sent at the old DTE
rate. Subsequent commands must be sent at the new rate.
300 bps
600 bps
1200 bps
2400 bps
4800 bps
7200 bps
9600 bps
12.0 kbps
14.4 kbps
19.2 kbps
38.4 kbps
57.6 kbps
115.2 kbps
230.4 kbps
245.760 kbps
307.200 kbps
Autobaud on
Autobaud off; lock at current baud rate.
2
3
2
3
Rev. 1.0
Action
Si2494/39
®
is not in
47
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