Table of Contents
Advertisement
NEX 6620A User's Guide
Appendix : Digital I/O
Digital I/O Control Table:
IO Port (hex)
Bit
84B
84B
84B
84B
84B
84B
84B
84B
Programming Example:
Example 1: Set Digital_Output_1 output High
Mov
DX, 84Bh
In
AL, DX
Or
AL, 00010000b
Out
DX, AL
Example 2: Read Digital_Output_1 output High
Mov
DX, 84Bh
In
AL, DX
Appendix
Pin Name
0
Digital Input
1
Digital Input
2
Digital Input
3
Digital Input
4
Digital Output
5
Digital Output
6
Digital Output
7
Digital Output
; Set I/O Port
; Read Register Data
; Set bit4 = 1 let Digital_Output_1 output High
; Set Register Data
; Set I/O Port
; Read Register Data, Bit 0 is Digital_Input_1 data.
Bit = 1
1
Input High
2
Input High
3
Input High
4
Input High
1
Output High
2
Output High
3
Output High
4
Output High
Rev. B0
Bit = 0
Locate
Input Low
J15.1
Input Low
J15.3
Input Low
J15.5
Input Low
J15.7
Output Low
J15.2
Output Low
J15.4
Output Low
J15.6
Output Low
J15.8
0301
i
Advertisement
Table of Contents
