User's Manual

5634RCS User’s Manual
48
S-
Register
Range Default Description
3 General Bit Mapped Options Status
Indicates the status of command options
S41
Bit 0-1
Compression selection (%Cn)
0= Disabled (%C0)
1= MNP 5(%C1)
2= V.42 bis (%C2)
3= MNP 5 and V.42 bis (%C3) (Default)
Bit 2,6
Auto retrain and fallback/fall forward
(%En)
Bit 6 Bit 2
0 0 = Retrain and fallback/fall forward disabled
(%E0) (Default)
0 1 = Retrain enabled (%E1)
1 0 = Fallback/fall forward enabled (%E2)
Bit 4
Block mode control
(\Ln)
0= Stream mode (\L0) (Default)
1= Block mode (\L1)
Bit 7
Enable fallback to V.22bis/V.22
(-Qn)
0= Disabled (-Qn)
1= Enable (-Q1) (Default)
S46 138 Data Compression Control
Control selection of compression. The
following actions are executed for the given
values:
S46=136
Execute error correction protocol
with no compression
S46=138
Execute error correction protocol
with compression (Default)