Reference Guide for the Model XM128 ISDN Digital Modem

2.Type the &Vn command AT&Vn to view all of the S-register settings. To view different S-register settings, use the following for n:

0 for viewing S-register settings for current active profile

1 to 4 for viewing settings for user profile number (n-1)

5 for viewing the factory default settings

6 for viewing the setting of PHONE 1

7 for viewing the setting of PHONE 2

3.Type the command ATSr.b? to display the value of bit b of S-register r.

Setting S-Registers

In the commands to change the value in S-register r and to change the value in a specific bit of S-register r, n is a decimal number in the given range. Although the first command modifies all bits in the S-register simultaneously, the second command lets you change bit b without affecting other bits in this S-register. When using ATSr=n, do a conversion to or from the binary number to find out which bits to manipulate.

To change the S-register values, follow these steps:

1.Type the command ATSr=n (range 0-255) to change the value in S-register r to value n.

2.Type the command ATSr.b=n (range 0-1)to change the value in a specific bit (b) of S-register r.

Examples for Setting S-Registers

Note: The values used in the examples differ from the actual values in the S-register and are used for demonstration purposes only.

If you want to set S38 bit 3 to 1 for a specific application, use either the simple command ATS38.3=1 or use the difficult method outlined in the following steps:

1.Read the value from S38 using the ATS38? command.

D-2

Status Registers and Result Codes

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NETGEAR XM128 ISDN manual Examples for Setting S-Registers