Intel MD566X manual V.44 / V.42 / V.42 bis MNP∗ Command Summary

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

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

14 Intel Confidential Programmer’s Guide