Reference Guide for the Model XM128 ISDN Digital Modem

S-Register Descriptions

In most bitmapped S-registers, the default bit value is 0 (which is the normal situation) and only the nondefault situation is described. Some reserved bits are for factory use, and the user should not change them. Table D-3 describes each basic S-register. Values followed by an asterisk (*) are the factory default settings.

Table D-3.

Basic S-registers ATSn=x

 

 

 

 

Command

Function and description

Default

 

 

 

S0=

Sets the number of rings on which the Model

000

 

XM128 modem answers; 0 value disables

 

 

auto-answer.

 

 

 

 

S1=

Counts and stores number of rings from an

000

 

incoming call.

 

 

 

 

S2=

Defines escape code character, default [+]

043

 

(43 dec.).

 

 

 

 

S3=

Defines ASCII carriage return.

013

 

 

 

S4=

Defines ASCII line feed.

010

 

 

 

S5=

Defines ASCII backspace.

008

 

 

 

S7=

Sets duration, in number of seconds, that the

060

 

Model XM128 modem waits for a carrier.

 

 

 

 

S8=

Sets duration, in seconds, for the pause and

002

 

repeat commands. For more information, refer

 

 

to Table C-1 on page C-2.

 

 

 

 

D-4

Status Registers and Result Codes

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NETGEAR XM128 ISDN Register Descriptions, Table D-3 Basic S-registers ATSn=x, Command Function and description Default