Fig. 8-4: Example For The Or Logic: Edge Switch Interrupt; Table 8-4: Principle Of The Or Logic - Addi-Data PC104-PLUS1500 Technical Description

Digital i/o board, optically isolated
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PC104-PLUS1500

Fig. 8-4: Example for the OR logic: Edge switch interrupt

INPUT 3
INPUT 2
MODE2, MODE1
MODE2, MODE1
0,0
0,0
1,0
0,0
0,1
0,0
1,1
0,0
0,0
1,0
1,0
1,0
0,1
1,0
1,1
1,0
0,0
0,1
1,0
0,1
0,1
0,1
1,1
0,1
0,0
1,1
1,0
1,1
0,1
1,1
1,1
1,1
* 10: Interrupt source: The second input (channel 3) generated an interrupt.
** 01: Interrupt source: The first input (channel 2) generated an interrupt.

Table 8-4: Principle of the OR logic

Input 2
Input 3
No interrupt
01
01
01
01
01
01
01
01
Functions of the board
10*
10
10
10
01**
01
10
10
01
10
01
10
10
10
10
10
01
01
10
10
01
10
01
10
10
10
10
10
01
01 10
10
01
10
01 10
01
01
10
10 01
10 01
10
01
01
01
01 10
10 01
01
10 01
01 10
35

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