SI2434-D-FT Silicon Laboratories Inc, SI2434-D-FT Datasheet - Page 77
SI2434-D-FT
Manufacturer Part Number
SI2434-D-FT
Description
IC ISOMODEM SYSTEM-SIDE 24TSSOP
Manufacturer
Silicon Laboratories Inc
Specifications of SI2434-D-FT
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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5.5. Extended AT Commands
The extended AT commands, described in Tables 40–42, are supported by the ISOmodem.
Notes:
Command
&G10
&G11
&G12
&G13
&G14
&G15
&G16
&G17
1. The initial number attempted to test for an outside line is controlled by S51 (default = 1).
2. AT&$ reflects the last AT&P command issued but does not reflect any subsequent changes made by writing U registers
&D1
&Gn
&G3
&G4
&G5
&G6
&G7
&G8
&G9
&Dn
&D0
&D2
&D3
&Hn
&H0
&$
with AT:U.
Display AT& current settings (see text for details).
Escape pin function (similar to DTR)
Escape pin is not used.
Escape pin escapes to command mode from data mode. The escape pin must be enabled by
setting bit HES (Enable Hardware Escape Pin, U70 bit 15).
Escape pin assertion during a modem connection causes the modem to go on-hook and return to
command mode. The escape pin must be enabled by setting bit HES (Enable Hardware Escape
Pin, U70 bit 15).
Escape pin assertion causes ATZ command (reset and return OK result code). The escape pin must
be enabled by setting bit HES (Enable Hardware Escape Pin, U70 bit 15).
Line connection rate limit—This command sets an upper limit on the line speed that the ISOmodem
can connect. The &Hn commands may limit the line speed as well (&Gn not used for &H0 or &H1).
Not all modulations support rates given by &G. Improper settings are ignored.
1200 bps max.
2400 bps max.
4.8 kbps max.
7.2 kbps max.
9.6 kbps max.
12 kbps max.
14.4 kbps max (default for Si2415)
16.8 kbps max.
19.2 kbps max.
21.6 kbps max.
24 kbps max.
26.4 kbps max.
28.8 kbps max.
31.2 kbps max.
33.6 kbps max (default for Si2457 transmit and Si2434)
Switched network handshake mode—&Hn commands must be on a separate command line from
ATD, ATA, or ATO commands.
V.90 with automatic fallback (56 kbps to 300 bps) (default for Si2457)
Table 40. Extended AT& Command Set
Rev. 1.3
Action
AN93
77
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