SI2493-D-FS Silicon Laboratories Inc, SI2493-D-FS Datasheet - Page 129

• 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

In addition, a common Point-of-Sale V.22 Fast Connect Handshake Protocol (with transparent HDLC) requires
these additional settings:
<EM><rate>
Notes:
Indicator pair
Command–
1. U87 [10] = 1 Can be used to limit the transparency characters in the receive direction, to these four cases only.
2. The actual value represented in <octnum0><octnum1> = (octnum0 / 2) + (octunum1 x 64)
3. <EM><0x45> indicates that an unrecognized <EM> command was sent to the modem.
0xBE not supported
Code
Hex
Table 86. EM In-Band Commands and Statuses (Continued)
Transmit Direction
AT+MS = V22
AT:U7A,3
Table 87. Fast Connect Settings
Set Fast Connect, Transmit
HDLC Flags instead of Marks
during handshake negotiation.
Retrain/Rate Reneg com-
pleted, following octets
<tx><rx> indicate tx and rx
rates.
0x20–1200 bps
0x21–2400 bps
0x22–4800 bps
0x23–7200 bps
0x24–9600 bps
0x25–12 kbps
0x26–14.4 kbps
0x27–16.8 kbps
0x28–19.2 kbps
0x29–21.6 kbps
0x2A–24 kbps
0x2B–26.4 kbps
0x2C–28.8 kbps
0x2D–31.2 kbps
0x2E–33.6 kbps
Rev. 1.3
Receive Direction
V22 Protocol
Transparent
Supported
Submode
Yes
in
Supported
in Framed
Submode
AN93
Yes
129