Motorola SM56 manual +Esa, Synchronous Access Mode Configuration

Table 4: AT+ (Plus) Commands

Command	Option	Description
	1	Normal mode
	2	LAP-M Only
	3	LAP-M or MNP
	4	MNP Only
	6	Initiate Sync Access mode when connection is estab-
		lished
	q options:	Specifies the answer-modem’s Fallback Error Cor-
		rection mode
	0	EC optional, fallback to Normal mode
	1	EC optional, fallback to Direct mode
	2	EC required (LAP-M or MNP)
	3	EC required (LAP-M only)
	4	EC required (MNP only)
	r options:	Specifies the originate-modem’s Fallback Error Cor-
		rection mode
	0	Direct mode
	1	Normal mode
	2	EC optional, fallback to Normal mode
	3	EC optional, fallback to Direct mode
	4	EC required (LAP-M or MNP)
	5	EC required (LAP-M only)
	6	EC required (MNP only)
	8	Initiate synchronous access mode when connected
+ESA		Synchronous Access Mode Configuration
	+ESA=a,b,c,
	d,e,f
	a options:	Specifies the Idle in Transparent sub-mode
	0	Computer transmits 8 bit SYN sequence on idle.
		Computer does not hunt for synchronization
		sequence
	b options:	Specifies the Idle in Framed sub-mode
	0	Computer transmits HDLC flags on idle
	c options:	Specifies under-run and over-run in Framed sub-
		mode
	0	Computer transmits Abort on an under-run within a
		frame

16