Intel 537EX Intel Confidential, Data Mode AT COMMANDS, 536EX Chipset Developer’s Manual, AT&V0

					Data Mode AT COMMANDS
Table 18. Data Mode Command Descriptions (Continued)
Command	Default			Description
		Dial Pulse Ratio: This command determines the make/break (that is, off-hook/on-hook) ratio during
		pulse dialing.
&Pn	0	n = 0*	Make = 39%; Break = 61% at 10 pulses per second—for use in the United States.
		n = 1	Make = 33%; Break = 67% at 10 pulses per second—for use in the United Kingdom and
			Hong Kong.
		DSR (Data Set Ready) Option: This command controls how the modem treats the DSR signal.
&Sn	0	n = 0*	DSR circuit always on
		n = 1	DSR circuit is on during handshaking, off in test or idle modes. DSR is off when the carrier
			is lost.
		Data Mode Self-Test Command: This command is used in data mode (except x2 and V.90 connections)
		to initiate and terminate loopback tests for testing modem-to-modem and DTE-to-modem data
&Tn	0	communication integrity.
		n = 0*	Terminates test in progress
		n = 1	Local analog loopback
		n = 8	Local analog loopback with self-test
		Disable Trellis Coding: This command selects whether the modem transmits or receives modulated
&Un	0	9600 bps carrier with QAM or Trellis encoding for V.32.
		n = 0*	Enabled (Trellis modulation with QAM modulation as a fallback)
		n = 1	Disabled (QAM modulation only)
		View Active Configuration and Stored Profiles: This command causes the modem to display the
		command and S-register information contained in the active user profile and in one of two stored
		profiles.The command &V0 displays the active profile and the stored profile 0; &V1 displays the active
		profile and the stored profile 1. The information in the active profile is stored into the user profiles with the
		&Wn command. &W0 stores the active profile into the stored profile 0; &W1, the stored profile 1.
		n = 0*	Stored profile 0
		n = 1	Stored profile 1
		AT&V0
		ACTIVE PROFILE:
		E1 L2 M1 T Q0 V1 W0 X4 Y0 &C1 &D2 &G0 &J0 &K3 &P0 &S0 &Y0
		%A013 %C1 %E1 \A3 \C0 \G0 \J0 \T000 \X0 -J1
&Vn	0	S00:000 S01:000		S02:043 S03:013 S04:010 S05:008	S06:002 S07:060 S08:002
		S09:006 S10:014		S11:070 S12:050 S18:000 S25:005	S27:064 S32:032 S33:010
		+ES=003,000,002		+DS=003,000
		STORED PROFILE 0:
		E1 L2 M1 T Q0 V1 W0 X4 Y0 &C1 &D2 &G0 &J0 &K3 &P0 &S0
		%A013 %C1 %E1 \A3 \C0 \G0 \J0 \T000 \X0 -J1
		S00:000 S02:043		S06:002 S07:060 S08:002 S09:006	S10:014 S11:070 S12:050
		S14:138 S18:000		S21:048 S22:118 S23:048 S25:005	S27:064 S30:000 S32:032
		S33:010 +ES=003,000,002 +DS=003,000
		TELEPHONE NUMBERS:
		&Z0 =		&Z1 =
		&Z2 =		&Z3 =
NOTE: An asterisk (*) denotes the factory-default setting.

536EX Chipset Developer’s Manual 45

Intel Confidential