56K V.92 Data, Fax, and Voice Chipset

14 Intel Confidential Programmer’s Guide

Table 2-2. V.44 / V.42 / V.42 bis MNP Command Summary

Note Command Function Default Range Reported

by &Vn

* %An Set auto-reliable fallback character 13 0–127 yes
* %Cn MNP 5 data compression control 1 0, 1 yes
%C0 No compression
%C1 Enables MNP5 data compression
* \An MNP block size 3 0–3 yes
\A0 Maximum 64 characters
\A1 Maximum 128 characters
\A2 Maximum 192 characters
\A3 Maximum 256 characters
* \Bn Transmit break none 0–9 no
* \Cn Set auto-reliable buffer 0 0–2 yes
\C0 No data buffering
\C1 Four-second buffer until 200 characters in
the buffer or detection of a SYN character
\C2 No buffering. Connec ts non-V.42 modems
to V.42 modem
* \Gn Set modem port flow control 0 0, 1 yes
\G0 Disables port fl ow control
\G1 Sets port flow control to XON/XOFF
* \Jn bps rate adjust control 0 0, 1 yes
\J0 Disables rate adjust
\J1 Enables rate adjust
* \Kn Set break control 5 0–5 yes
In connect state, transmits break to remote (if in Reliable mode):
\K0, 2, 4 Enters Command mode, no break sent
\K1 Destructive/expedited
\K3 Nondestructive/expedited
\K5 Nondestructive/nonexpedited
In command state, transmits break to remote (if in Reliable mode):
\K0, 1 Destructive/expedited
\K2, 3 Nondestructive/expedited
\K4, 5 Nondestructive/nonexpedited
In connect state, receives break at modem port (if in Direct mode):
\K0, 2, 4 Immediately sends break and enters com-
mand state
\K1, 3, 5 Immediately sends the break through
In connect state, receives break at modem port and sends to serial port:
\K0, 1 Destructive/expedited