S Registers

S0

* Number of rings to answer on (0)

S1

Counts number of rings (0)

S2

* Defines escape code character (43)

S3

* Defines carriage return character (13)

S4

* Defines line feed character (10)

S5

* Defines backspace character (8)

S6

* Sets number of seconds modem waits before dialing (2)

S7

* Sets number of seconds modem waits for a carrier (60)

S8

* Comma delay time in seconds (2)

S9

* Carrier recognition time in tenths of a second (6)

S10

* Carrier Loss time in tenths of a second (7)

S11

* Touch tone spacing (mSec) (70)

S12

* Escape code time (1/50sec) (50)

S13

* Bit mapped (0)

1

Reset on DTR drop

2

Reset non-MNP buffer to 128 bytes

4

Set backspace key to delete

8

Do DS0 on DTR

16

Do DS0 on reset

32Disable V.32bis ASL mode

64Disable Quick Retrains

128Disconnect on escape code

S15 * Bit mapped (0)

1Disable ARQ/MNP for V.22

2Disable ARQ/MNP for V.22bis

4Disable ARQ/MNP for V.32 and V.32bis

8Disable MNP Handshake

16Disable MNP level 4

32Disable MNP level 3

64Special MNP incompatibility

128Disable V.42

136Disable Initial V.42 phase detection

S16

Bit mapped (0)

2

Touch tone test

4

Use internal test pattern

S18

Test Timer (sec) (0)

S19

* Inactivity time-out (min) (0)

S21

* Break length (1/100sec) (10)

S22

* ASCII Code for XON character (17)

S23

* ASCII Code for XOFF character (19)

S25

* DTR minimum pulse width (1/100sec) (20)

S27

* Bit mapped (0)

1

V21 mode

2

Enable non trellis code V.32bis

4

Disable V.32

8

Disable 2100

16Enable V.23

32Disable V.32bis

128Software Compatibility Mode

S28 * Multimode training program (8)

0Eliminates the V.32 answer tones for faster connection

11

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USRobotics 3Com manual Registers