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Motorola 326X V.34 User Manual

Page 102

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5-10 Using the AT Automatic Calling Interface

Using the

A

T

ACU

Display S-Register Value (AT?)

This command displays the contents of the “selected” S-Register, as stored in volatile
memory. The “selected” S-Register is the last S-Register that was accessed using an
S-Register command or the ATSn command. The number must be within the S-Regis-
ter’s specified range. On power-up, S-Register 0 is “selected.”

If you try to read the contents of an unused S-Register, the modem displays OK.

Change S-Register Value (ATSx=n)

This command lets you change the value of an S-Register stored in volatile
memory. n is the S-Register to change, and x is the value. x must be a number
within the S-Register’s range.

If you try to change the value of an unused S-Register, the modem displays OK.

Change S-Register Value (AT=x)

This command lets you change the value of an S-Register stored in volatile memory.
The “selected” S-Register is the last S-Register that was accessed using an
S-Register command or the ATSn command. x must be a number within the specified
range for the S-Register. On power-up, S-Register 0 is “selected.”

If you try to change the value of an unused S-Register, the modem displays OK.

S-Register Descriptions

S-Register 0—Ring Count to Answer On

This S-Register specifies the ring on which the modem automatically answers a call.
When set to 0, automatic answering is disabled, and calls must be answered manually.
This register has no meaning unless Answer=Using S0 (ACU OPT’S).

Settings:

Selected S-Register

Format:

AT?

Settings:

n, Specifies S-Register

x, Specifies value of S-Register

Format:

ATSn=x

Settings:

x, Specifies value of selected S-Register

Format:

AT=x

Stored in Nonvolatile Memory?:

Yes

Status-Only?:

No

Default Setting:

0

Range:

0 to 255