Intel 536EX Intel Confidential, AT Command Summary Tables, Data Mode Command Summary Continued

AT Command Summary Tables

Table 5. Data Mode Command Summary (Continued)

Note	Command	Function	Default	Range	Reported
					by &Vn
*	Xn	Result code type	4	0–4	yes
	X0	Enables result codes 0–4; disables detection
		of busy and dial tone
	X1	Enables result codes 0–5, 10, and above;
		disables busy and dial tone detection
		Enables result codes 0–6 and 10 and above;
	X2	disables busy detection and enables dial
		tone detection
		Enables result codes 0–5, 7, and 10 and
	X3	above; enables busy detection and disables
		dial tone detection
	X4	Enables result codes 0–7 and 10 and above;
		enables busy and dial tone detection
*	Yn	Long space disconnect	0	0, 1	yes
	Y0	Disables long space disconnect
	Y1	Enables long space disconnect
	Zn	Recall stored profile	0	0, 1	no
	Z0	Resets modem and recalls user profile 0
	Z1	Resets modem and recalls user profile 1
*	&Cn	DCD (data carrier detect) option	1	0, 1	yes
	&C0	Ignores remote modem status; DCD always
		on
	&C1	DCD set according to remote modem status
	&Dn	DTR (data terminal ready) option	2	0–3	yes
	&D0	In Async mode, modem ignores DTR
		Modem switches from data mode to
	&D1	command mode when an on-to-off transition
		of DTR occurs
		When DTR switches off, the modem goes
	&D2	on-hook and disables Auto-answer mode;
		when DTR switches on, auto-answer is
		enabled
	&D3	Turning off DTR re-initializes the modem and
		resets values except UART registers
	&F	Load factory defaults	none	–	no
*	&Gn	Guard tone option (1200 bps and 2400 bps	0	0–2	yes
		only)
	&G0	Disables guard tone
	&G1	Enables 550 Hz guard tone
	&G2	Enables 1800 Hz guard tone
	&Kn	Select serial flow control	3	0, 3, 4	yes

* Value saved in NVRAM.

** Command not preceded by an ‘AT.’

16 536EX Chipset Developer’s Manual

Intel Confidential