SI2493-D-FS Silicon Laboratories Inc, SI2493-D-FS Datasheet - Page 83
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SI2493-D-FS
Manufacturer Part Number
SI2493-D-FS
Description
IC ISOMODEM SYSTEM-SIDE 16SOIC
Manufacturer
Silicon Laboratories Inc
Specifications of SI2493-D-FS
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Notes:
Command
1. When in autobaud mode, \B0, \B1, and \P1 is not detected automatically. The combination of \B2 and \P3 is detected.
2. After changing the baud rate, the result code OK is sent at the old DTE rate. Subsequent commands must be sent at
3. The autobaud feature does not detect this rate.
4. Default is \T16 if autobaud is selected by reset-strap option; otherwise default is \T9 (19.2 kbps).
\T10
\T12
\T13
\T14
\T15
\T16
\T17
\T11
\Vn
\V0
\V2
\V4
\T3
\T4
\T5
\T6
\T7
\T8
\T9
\U
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.
the new rate. If the ISOmodem is configured in autobaud mode, AT commands \T0 through \T15 lock the new baud rate
and disable autobaud. To eliminate any possibility of a race condition between the receipt of the result code and the
changing of the UART speed, CTS is de-asserted while the result code is being sent until after the rate has been
successfully changed. The host should send the \T command and wait for the OK response. After OK has been
received, the host may send data at the new rate as soon as CTS is asserted. The \T command should be the last
command sent in a multi-command line and may not be used on the same command line as :U or :R commands. If it is
not, the OK from the \T command is sent at the old DTE rate, and other result codes are sent at the new DTE rate.
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.
In UART mode:
1. Causes a low pulse (25 ms) on RI and DCD
2. Makes INT the inverse of ESC
3. Makes RTS the inverse of CTS
In parallel or SPI mode, causes a low pulse (25 ms) on INT.
This command terminates with RESET and does not generate an OK message.
Connect message type.
Report connect and protocol message.
Report connect message only (exclude protocol message).
Report connect and protocol message with both upstream and downstream connect rates.
3
4
3
Table 42. Extended AT\ Command Set (Continued)
4
Rev. 1.3
Action
AN93
83
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