Contec DIO-48D-LPE, Руководство пользователя, Страница: 41 / 56

4. Function
34
DIO-48D-LPE
Each bit of control word is as follows.
CW7 CW6 CW5 CW4 CW3 CW2 CW1 CW0
Port C high 4 bits I/O set
Port A I/O set
Output 0
Input 1
[1]
[0]
Output 0
Input 1
Output 0
Input 1
Output 0
Input 1
Port B I/O set
Port C low 4 bits I/O set
[0]
Figure 4.2. I/O setup control word
Table 4.1. Setup value of the control word
Contorol Ward
D7 D6 D5 D4 D3 D2 D1 D0 hexadecimal Port A Port C
(High 4bit)
Port B Port C
(Low 4bit)
1 0 0 0 0 0 0 0 80 OUTPUT OUTPUT OUTPUT OUTPUT
1 0 0 0 0 0 0 1 81 OUTPUT OUTPUT OUTPUT INPUT
1 0 0 0 0 0 1 0 82 OUTPUT OUTPUT INPUT OUTPUT
1 0 0 0 0 0 1 1 83 OUTPUT OUTPUT INPUT INPUT
1 0 0 0 1 0 0 0 88 OUTPUT INPUT OUTPUT OUTPUT
1 0 0 0 1 0 0 1 89 OUTPUT INPUT OUTPUT INPUT
1 0 0 0 1 0 1 0 8A OUTPUT INPUT INPUT OUTPUT
1 0 0 0 1 0 1 1 8B OUTPUT INPUT INPUT INPUT
1 0 0 1 0 0 0 0 90 INPUT OUTPUT OUTPUT OUTPUT
1 0 0 1 0 0 0 1 91 INPUT OUTPUT OUTPUT INPUT
1 0 0 1 0 0 1 0 92 INPUT OUTPUT INPUT OUTPUT
1 0 0 1 0 0 1 1 93 INPUT OUTPUT INPUT INPUT
1 0 0 1 1 0 0 0 98 INPUT INPUT OUTPUT OUTPUT
1 0 0 1 1 0 0 1 99 INPUT INPUT OUTPUT INPUT
1 0 0 1 1 0 1 0 9A INPUT INPUT INPUT OUTPUT
1 0 0 1 1 0 1 1 9B INPUT INPUT INPUT INPUT