SI2493-C-FS Silicon Laboratories Inc, SI2493-C-FS Datasheet - Page 43

• Manufacturer Part Number: SI2493-C-FS
• Description: IC ISOMODEM SYSTEM-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2493-C-FS

• 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: UART
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Notes:
&H10
&H12
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
&H11
&H2
&H4
&H6
&H3
&H5
&H7
&H8
&H9
&Pn
&P0
&P1
&Xn
&Tn
&T0
&T2
&T3
&T4
&T5
&T6
with AT:U.
V.34 with automatic fallback (33.6 kbps to 300 bps) (default for Si2434).
V.34 only (33.6 kbps to 2400 bps).
ITU-T V.32bis with automatic fallback (14.4 kbps to 300 bps) (default for Si2415).
ITU-T V.32bis only (14.4 kbps to 4800 bps).
ITU-T V.22bis only (2400 bps or 1200 bps) (default for Si2404).
ITU-T V.22 only (1200 bps).
Bell 212 only (1200 bps).
Bell 103 only (300 bps).
ITU-T V.21 only (300 bps).
V.23 (1200/75 bps).
V.92 with automatic fallback (default for Si2493)
Japan pulse dialing*
Configure Si2493/57/34/15/04 for 10 pulse-per-second pulse dialing. For Japan.
Configure Si2493/57/34/15/04 for 20 pulse-per-second pulse dialing. For Japan.
Test mode.
Cancel Test Mode (Escape to Command mode to issue AT&T0). This command also reports the
number of bit errors encountered on the previous &T4 or &T5 test.
Initiate ITU-T V.54 (ANALOOP) test. Modem mode set by &H. Test loop is through the DSP and
DAA interface section of the Si2493/57/34/15/04 only. ISOmodem echoes data from TX pin
(Register 0 in parallel mode) back to RX pin (Register 0 in parallel mode). This test mode is typically
used during board-level debug.
Initiate ITU-T V.54 (ANALOOP) test. Modem mode set by &H. Test loop is through the DSP (Si2493/
57/34/15/04), DAA interface section (Si2493/57/34/15/04), ISOcap™ interface (Si3018/10), and
analog hybrid circuit (Si3018/10). ISOmodem echoes data from TX pin (Register 0 in parallel mode)
back to RX pin (Register 0 in parallel mode). Phone line termination required as in Figure 10. In
order to test only the ISOcap link operation, the hybrid and AFE codec can be removed from the test
loop by setting U62[1] (DL) = 1.
Initiate transmit as originating modem with automatic data generation. Modulation, data rate, and
symbol rate are set by &H, &G, and S41. Data pattern is set by the S40 register. Continues until the
ATH command is sent after an escape into command mode. Data is also demodulated as in
ANALOOP, and any bit errors are counted to be displayed after the test using &T0.
Initiate transmit as answering modem with automatic data generation. Modulation, data rate, and
symbol rate are set by &H, &G, and S41. Data pattern is set by the S40 register. Continues until the
ATH command is sent after an escape into command mode. Data is also demodulated as in
ANALOOP, and any bit errors are counted to be displayed after the test using &T0.
Compute checksum for firmware-upgradeable section of program memory. If no firmware upgrade
is installed, &T6 returns C:4474.
Automatic determination of telephone line type.
Table 19. Extended AT& Command Set (Continued)
Rev. 0.9
AN93
43