Download 1. Introducton

2.2
I/O Operation
2.2.1
Non-isolated DO Port Architecture (CON3)
When the PC is power-up, all operations of non-isolated DO states are clear to
low-state. The RESET\ signal is used to clear non-isolated DO states. Refer to Sec. 3.3.1
for more information about RESET\ signal.
•
The RESET\ is in Low-state ! all non-isolated DO states are clear to low state
The block diagram of non-isolated DO is given as follows:
RESET\
clear
Data
input
CON3
Latch
Clock input
D/O buffer CKT
PISO-730 User Manual (Ver. 1.0,12/30/99) ----- 8