Intel 537EX Intel Confidential, AT Command Summary Tables, Dial Modifiers, S-RegisterSummary

AT Command Summary Tables

Table 11. Voice DTE←DCE Character Pairs (Continued)

Response	Hex Code	Function
f	66	Data answer detected (2225 Hz)
R	52	Incoming ring
% ‘ (,)	25, 26, 27, 28, 29	Manufacturer-specified

Table 12. Dial Modifiers

Command	Function
0 to 9	Dialing digits
A, B, C, D, *, #	Tone dial characters
P	Pulse dial
R	Reverse Originate mode
S=n	Dial NVRAM telephone number
T	Tone dial
W	Wait for dial tone
,	Pause
!	Flash hook
@	Wait for quiet answer
;	Return to command state
- ( )	Ignored by modem

Table 13. S-Register Summary

Note	Register	Function	Default	Range	Units	Reported by &Vn
*	S0	No. of rings to auto-answer on	0	0–255	ring	yes
	S1	Ring count	0	0–255	ring	yes
*	S2	Escape character	43	0–127	ASCII	yes
	S3	Carriage return character	13	0–127	ASCII	yes
	S4	Line feed character	10	0–127	ASCII	yes
	S5	Backspace character	8	0–32, 127	ASCII	yes
*	S6	Wait before dialing	2	2–255	second	yes
*	S7	Wait for carrier	60	1–255	second	yes
*	S8	Pause time for dial modifier	2	0–255	second	yes
*	S9	Carrier recovery time	6	1–255	0.1 second	yes
*	S10	Lost carrier hang up delay	14	1–255	0.1 second	yes
*	S11	DTMF dialing speed	70	50–255	ms	yes
*	S12	Guard Time	50	0–255	(0.02 second)	yes
*	S14	Bit-mapped options	138	–	–	no

* Value saved in NVRAM.

24 536EX Chipset Developer’s Manual

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