SI2493-C-FT Silicon Laboratories Inc, SI2493-C-FT Datasheet - Page 42
SI2493-C-FT
Manufacturer Part Number
SI2493-C-FT
Description
56 KBPS, V.92 ISOMODEM SYSTEM-SIDE - LEAD-FREE TSSOP 0 TO 7
Manufacturer
Silicon Laboratories Inc
Specifications of SI2493-C-FT
Mfg Application Notes
SI2493/57/34/15/04, Appl Note AN93
Data Format
V.21, V.22, V.23, V.29, V.32, V.34, V.90, V.92, Bell 103, Bell 212A
Baud Rates
56k
Interface
Parallel
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Package / Case
24-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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AN93
3.1.9. Extended AT Commands
The extended AT commands, described in Tables 19–21, are supported by the Si2493/57/34/15/04.
42
Notes:
Command
&G17
&G10
&G11
&G12
&G13
&G14
&G15
&G16
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
&H0
&Dn
&D0
&D2
&D3
&Hn
&H1
&$
with AT:U.
Display AT& current settings (see text for details).
Escape Pin Function (Similar to DTR)
ESC (pin 22) is not used
ESC (pin 22) escapes to command mode from data mode if also enabled by HES U70, bit 15.
ESC (pin 22) assertion during a modem connection causes the modem to go on-hook and return to
command mode.
ESC (pin 22) assertion causes ATZ command (reset and return OK result code).
Line connection rate limit—This command sets an upper limit on the line speed that the
Si2493/57/34/15/04 can connect. Note that 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).
V.90 only (56 kbps to 28 kbps).
Table 19. Extended AT& Command Set
Rev. 0.9
Action
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