Intel MD566X User Manual
Page 14

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. Connects non-V.42 modems
to V.42 modem
*
\Gn
Set modem port flow control
0
0, 1
yes
\G0
Disables port flow 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