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RELAY/DIGITAL I/O CARD PCI—48 INPUTS OR OUTPUTS
4.5 Control Words
n = control word for port 1 or 2
4.5.1 I/O C
ONFIGURATION
CWnD0
Port C1 lower nibble (bits 0–3)
CWnD1
Port B1
CWnD2
CWnD3
Port C1 upper nibble (bits 4–7)
CWnD4
Port A1
CWnD5
CWnD6
CWnD7
Control Word (X=0)
7
6
5
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
1
X
X
12
4
3
2
0
0
X
0
0
X
0
0
X
0
0
X
0
1
X
0
1
X
0
1
X
0
1
X
1
0
X
1
0
X
1
0
X
1
0
X
1
1
X
1
1
X
1
1
X
1
1
X
1=input
1=input
0 or 1 (no effect)
1=input
1=input
0 or 1 (no effect)
0 or 1 (no effect)
Always a 1
Hex
Value
1
0
0
0
80
0
1
81
1
0
82
1
1
83
0
0
88
0
1
89
1
0
8A
1
1
8B
0
0
90
0
1
91
1
0
92
1
1
93
0
0
98
0
1
99
1
0
9A
1
1
9B
0=output
1 on power up
0=output
1 on power up
0=output
1 on power up
0=output
1 on power up
Port Setup
A
B
C Upper C Lower
Out Out
Out
Out Out
Out
Out In
Out
Out In
Out
Out Out
In
Out Out
In
Out In
In
Out In
In
In
Out
Out
In
Out
Out
In
In
Out
In
In
Out
In
Out
In
In
Out
In
In
In
In
In
In
In
Out
In
Out
In
Out
In
Out
In
Out
In
Out
In
Out
In
Out
In
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