APPENDIX C. S REGISTERS

S31 *

Bit mapped option

 

Bit 0

Reserved

 

Bit 1

0

ATN0

 

 

 

Bit 2,3

1

ATN1

 

0

ATW0

 

 

 

 

1

ATW1

 

 

2

ATW2

 

 

Bit 4-7

Reserved

 

S32

 

XON Character

Default : 17(11h)

S33

 

XOFF Character

Default : 19(13h)

S34

- 35

Reserve d

 

 

S36

*

Negotiate failure fallback

Default : 7

 

 

Bit 0-2

 

 

0Modem disconnects

1Modem stays on-line and a direct mode connection is established

2Reserved

3Modem stays on-line and a normal mode connection is established

4A MNP connection is attempted and if it fails, the modem disconnects

5A MNP connection is attempted and if it fails, a direct mode connection is established

6Reserved

7A MNP connection is attempted and if it fails, a normal mode connection is established

 

Bit 3-7

Reserved

 

S37 *

Desired line connection speed

Default : 0

 

This register specifies the desired line connection speed.

 

 

Use of the +MS command is recommended instead of the Nn and

 

S37=x commands. Nn and S37=x commands are supported for

 

compatibility with existing communication software.

 

 

0

Attempts automode connection. If N0 is active, connection

 

 

is attempted at the most recently sensed DTE speed. If N1 is

 

 

active, connection is attempted at the highest possible speed.

 

1-3

Attempts to connect at 300bps

 

 

4

Reserved

 

 

5

Attempts to connect at 1200bps

 

 

6

Attempts to connect at 2400bps

 

 

7

Attempts to connect at V.23

 

 

8

Attempts to connect at 4800bps

 

ACTIVE Professional External Modem User’s Manual

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