PIO-D96 Series Card
96-channel DIO Board
User Manual, Ver. 2.3, Jun. 2018, PMH-008-23 Page: 14
2.6
DI/DO Architecture
The Digital I/O control architecture for the PIO-D96 series card is demonstrated in the figure below.
The operation method used for the control signal is presented below.
RESET\ is in the Low-state
all DI/DO operation is disabled
RESET\ is in the High-state
all DI/DO operation is enabled.
If DI/DO is configured as a DI port
DI= external input signal
If DI/DO is configured as a DO port
DI = read back DO
If the DI/DO is configured as a DI port
sending data to a Digital input port will only change the DO
latch register. The latched data will be output when the port is configured as digital output and is
activated right away.
Disable\
Input
Latch
Clock Input
I/O Select (Section 6.3.7)
RESET\ (Section 6.3.1)
DI/DO
Data
Section 6.3.9
Disable
Buffer
Input
Clock Input
Data
Section 6.3.9