USRobotics x2/56K, 33600 user manual Reg Default Function

Reg Default Function

S15	0	Bit-mapped register. To set the register see
		the instructions for S13.
		Bit	Value	Result
		0 (zero)1		Disable ARQ/MNP for V.22.
		1	2	Disable ARQ/MNP for .22bis.
		2	4	Disable ARQ/MNP for
				V.32/V.32bis/V.32terbo.
		3	8	Disable MNP handshake.
		4	16	Disable MNP level 4.
		5	32	Disable MNP level 3.
		6	64	MNP incompatibility.
		7	136	Disable V.42 detection phase.
S16	0	Bit-mapped test register. Allowable value is
		2.

Bit Value Result

0Reserved.

12 Touch tone dialing test.

2–7 Reserved.

S17	0	Reserved.
S18	0	Test timer for &Tn loopback testing. Sets the
		time in seconds of testing before the modem
		automatically times out and terminates the
		test. When set to 0, the timer is disabled.
S19	0	Sets the duration, in minutes, for the Inac-
		tivity Timer. The timer activates when there is
		no data activity on the phone line; at timeout
		the modem hangs up. S19 = 0 disables the
		timer.
S20	0	Reserved.
S21	10	Sets the length, in 10-millisecond units, of
		breaks sent from the modem to the compu-
		ter; applies to ARQ mode only.
S22	17	Stores the ASCII decimal code for the XON
		character. Valid range is 0–127.

50 Sportster Winmodem 33600 & x2/56K - User's manual