Silicon Laboratories SI2494/39, SI2493/57/34/15/04 manual Command Action Verbal result codes

AN93

	Table 39. Basic AT Command Set (Continued)
Command			Action
V1		Verbal result codes.
		Call Progress Monitor (CPM)—This command controls which CPM
Xn		signals are monitored and reported to the host from the ISOmo-
		dem (See Table 43).
X0		Basic results; disable CPM—Blind dial (does not wait for dial tone).
		CONNECT message does not include speed.
X1		Extended results; disable CPM—Blind dial. CONNECT message
		includes speed.
X2		Extended results and detect dial tone only. X1 with dial tone detec-
		tion.
X3		Extended results and detect busy only. X1 with busy tone detec-
		tion.
X4		Extended results, full CPM. X1 with dial and busy tone detec-
		tion.
X5		Extended results—Full CPM enabled including ringback detection.
		X4 with ring back detection.
Yn		Long space disconnect—Modem hangs up after 1.5 seconds or
		more of continuous space while on-line.
*Y0		Disable data memory access by disallowing :W and :Q Com-
		mands.
*Y1		Enable continuous DTMF tone (ATxY1D9 sends continuous “9”
		tone).
*Y2		Enable continuous answer tone. To enable continuous answer
		tone and answer, use ATxY2A.
*Y254		Enables Data Memory Access, i.e. allows :W and :Q commands.
Z		Hard reset—This command is functionally-equivalent to pulsing
		the RESET pin low.
:E		Read from serial EEPROM. The format is AT:Ehhhh, where hhhh
		is the EEPROM address in hexadecimal.
		Interrupt read—This command causes the ISOmodem to report
:I		the lower eight bits of the interrupt register U70 (IO0). The CID,
		OCD, PPD, and RI bits of this register are cleared, and the INT pin
		(HIR1 INT flag in parallel or SPI mode) is deactivated on this read.
		Read Quick Connect data.
		hh is a hexadecimal value. Data are read as follows:
:LPhh		:LP0	d1...d8
		:LP8	d9...d16
		:LP10	d17...d24
		:LP18	d25...d32
		Write to serial EEPROM. The format is AT:Mhhhh,xxxx, where
:M		hhhh is the EEPROM address in hexadecimal and xxxx is the
		EEPROM data in hexadecimal.

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