Contec IPC-BX/M560, User Manual

Page: 73 / 90

Functions of Components
IPC-BX/M560(PCW)
62
Usage
Output 0A5h to the 013Ch port to unprotect.
...
Unprotect
Output data to the 013Bh port to set the PI0, PI2, and PO2 modes.
...
Control event
output
Use the 0138h port for input/output.
...
Input/output
Figure 5.14. Using General-purpose Inputs/Outputs and
Remote Reset
I/O addresses and instructions
* 0138h: General-purpose input/output
R/W
D6 D5 D4 D3 D2 D1 D0 D7
P2 P1 P0
Figure 5.15. General-purpose I/O Port (0138h)
R : Input data
• Input bit data = 1 : The input contact is on (conductive).
• Input bit data = 0 : The input contact is off
(not conductive).
W : Output data
• Output bit data = 1 : The output transistor is on.
• Output bit data = 0 : The output transistor is off (reset).