MODEM
9-23
S Registers
S41
General Bit Mapped Options
Indicates the status of command options.
Default: 3 (00000011b)
Bits 0 - 1 Compression selection (%Cn)
0 = Disabled (%C0)
1 = MNP5 (%C1)
2 = V.42bis (%C2)
3 = MNP5 and V.42bis (%C2) (default)
Bit 2
Auto retrain
0 = Retrains disabled (%E0) (default)
1 = Retrains enabled (%E)
Bit 3
Modem-to-modem flow control
0 = Disabled (\G0) (default)
1 = Enabled (\G1)
Bit 4
Block mode control (\Ln)
0 = Stream mode (\LO) (default)
1 = Block mode (\L1)
Bit 5-7
Reserved
S41-45
Reserved
S46
Data Compression Control
Controls selection of compression. The following actions are
executed for the given values:
Range: 136 or 138 , Default: 138
S46 = 136 Execute error correction protocol with no
compression
S46 = 138 Execute error correction protocol with no
compression (default)
S48 V.42
Negotiation Action
The V.42 negotiation process determines the capabilities of
the remote modem. However, when the capabilities of the
remote modem are known and negotiation is unnecessary,
this process can be bypassed if so desired.
Range: 0, 7, or 128 if an invalid number is entered, it is
accepted into the S register, but S48 will act as if 128 has
been entered.
S3GX_TRMBook Page 23 Friday, September 19, 1997 11:39 am
Содержание SPARCbook 3 series
Страница 1: ...Series Technical Reference Manual 980327 02 3 S3GX_TRMBook Page i Friday September 19 1997 11 39 am...
Страница 8: ...viii S3GX_TRMBook Page viii Friday September 19 1997 11 39 am...
Страница 28: ...1 16 Architecture Overview Microcontroller Subsystem S3GX_TRMBook Page 16 Friday September 19 1997 11 39 am...
Страница 44: ...2 16 The SPARC CPU SBus Controller S3GX_TRMBook Page 16 Friday September 19 1997 11 39 am...
Страница 76: ...5 8 SCSI Controller DMA Support S3GX_TRMBook Page 8 Friday September 19 1997 11 39 am...
Страница 82: ...6 6 Ethernet Interface DMA Support for Network Operations S3GX_TRMBook Page 6 Friday September 19 1997 11 39 am...
Страница 96: ...7 14 PCMCIA Interface Microcontroller Registers S3GX_TRMBook Page 14 Friday September 19 1997 11 39 am...
Страница 146: ...9 28 MODEM Class 2 Fax Command Set S3GX_TRMBook Page 28 Friday September 19 1997 11 39 am...
Страница 180: ...11 30 Display Interface RAMDAC S3GX_TRMBook Page 30 Friday September 19 1997 11 39 am...
Страница 210: ...B 10 Connector Information Removable Hard Drive SCSI Connector S3GX_TRMBook Page 10 Friday September 19 1997 11 39 am...
Страница 216: ...Index vi S3GX_TRMBook Page vi Friday September 19 1997 11 39 am...