Appendix F: S Registers
57
S38
0-255 seconds
20
Delay before forced
disconnect
Register
Range/Value
Default Function
S39
0-6
3
FLOW CONTROL
0
No flow control
3
RTS/CTS (&K3)
4
XON/XOFF
5
Transparent XON (&K5)
6
Both methods (&K6)
S40-41
BIT MAPPED OPTIONS
S42-45
RESERVED
S46
136 or 138
138
Data compression selection
136
Error correction with no
compression
138
Error correction and
compression
S48
0, 7, or 128
7
V.42 negotiation action
0
No negotiation; bypass
detection and negotiation
phases; proceed with LAPM
7
Negotiation
128
No negotiation; bypass
detection and negotiation
phases; proceed with S36
fallback action
S80
RESERVED
S82
3, 7, or 128
128
Break handling options
3
Break immediate; data
integrity maintained ahead
of and after break
7
Break immediate; data at
time of break destroyed
128
Break in sequence with any
transmitted data; data
integrity maintained ahead
of and after break