CommTech FASTCOM ESCC-PCI-335, Hardware Reference Manual

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FASTCOM: ESCC-PCI-335 BOARD-SPECIFIC REGISTER
First I/O Range
BIT NUMBER SIGNAL SETTINGS
0 Receive echo control 0 = RTS controls RD
1 = RD always on
1 SD 485 control
0 = /RTS controls SD
1 = SD always on
2 TT 485 control
0 = /RTS controls TT
1 = TT always on
Channel 1
3 CTS disable
0 = CTS always active
1 = CTS from connector
4 Receive echo control 0 = RTS controls RD
1 = RD always on
5 SD 485 control
0 = /RTS controls SD
1 = SD always on
6 TT 485 control
0 = /RTS controls TT
1 = TT always on
Channel 2
7 CTS disable
0 = CTS always active
1 = CTS from connector
8 Txclk = ST
0 = txclk connected to ST input
1 = txclk not connected to ST input
Channel 1
9 Txclk = TT
0 = txclk connected to TT output
1 = txclk not connected to TT output
10 Txclk = ST
0 = txclk connected to ST input
1 = txclk not connected to ST input
Channel 2
11 Txclk = TT
0 = txclk connected to TT output
1 = txclk not connected to TT output
Second I/O Range
The second I/O range is the 82532 registers mapped flat.