SI2493-C-FS Silicon Laboratories Inc, SI2493-C-FS Datasheet - Page 33

• 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

Xn
X0
X1
X2
X3
X4
X5
Yn
Y0
Y1
Z
:E
:I
:LPhh
:M
:P
:R
Command
Call Progress Monitor (CPM)—This command controls which CPM signals are monitored and
reported to the host from the Si2493/57/34/15/04. (See Table 22.)
Basic results; disable CPM—Blind dial (does not wait for dial tone). CONNECT message does not
include speed.
Extended results; disable CPM—Blind dial. CONNECT message includes speed.
Extended results and detect dial tone only. X1 with dial tone detection.
Extended results and detect busy only. X1 with busy tone detection.
Extended results, full CPM. X1 with dial and busy tone detection.
Extended results—Full CPM enabled including ringback detection. X4 with ring back detection.
Long space disconnect—Modem hangs up after 1.5 seconds or more of continuous space while
on-line.
Disable.
Enable.
Hard Reset—This command is functionally-equivalent to pulsing the RESET pin low.
Read from serial EEPROM. The format is AT:Ehhhh where hhhh = EEPROM address in hexadec-
imal.
Interrupt Read—This command causes the ISOmodem to report the lower eight bits of the inter-
rupt register U70 (IO0). The CID, OCD, PPD, and RI bits of this register are cleared, and the INT
pin (INT bit in parallel mode) is deactivated on this read.
Read Quick Connect data.
hh is a hex value. Data is read as follows:
:LP
:LP
:LP
:LP
Write to serial EEPROM. The format is AT:Mhhhh,xxxx where hhhh = EEPROM address in hexa-
decimal, and xxxx = EEPROM data in hexadecimal.
Program RAM Write—This command is used to upload firmware supplied by Silicon Labs to the
Si2493/57/34/15/04. The format for this command is AT:Phhhh,xxxx,yyyy,.... where hhhh is the
first address in hexadecimal, and xxxx,yyyy,.... is data in hexadecimal. Only one :P command is
allowed per AT command line. No other commands can be concatenated in the :P command line.
This command is only for use with special files provided by Silicon Laboratories. Do not attempt to
use this command for any other purpose. Use &T6 to display checksum for patch verification.
U-Register Read—This command reads U-Register values in hexadecimal.
The format is AT:Rhh, where
hh = A particular U-Register address in hexadecimal.
The AT:R command displays all U- register values.
Only one :R command is allowed per AT command line.
0
8
10
18
Table 18. Basic AT Command Set (Continued)
d
d
d
d
1
9
17
25
...d
...d
...d
...d
8
16
24
32
Rev. 0.9
Action
AN93
33