USRobotics V.34 user manual Register Default Function

COURIER HIGH SPEED MODEMS

Register	Default	Function
S55	0	Trellis code bit-mapped register used
		primarily by U.S.Robotics Technical
		Support for debugging purposes.
S56	0	Bit-mapped register primarily used
		by U.S.Robotics Technical Support for
		debugging purposes.
		Bit 6 (ATS56.6=1) disables V.34
		modulation.
		Bit 7 (ATS56.7=1) disables V.FC
		modulation.
S57	0	Reserved for German operations.

B-28 Summaries and Tables