User guide

Registers • 31
3.6 Software Trigger Register
If you want to generate a trigger pulse to the PCI-9112 for A/D conversion,
you just write any data to this register, and then the A/D converter will be
triggered.
Address: BASE + 20
Attribute: write only
Data Format:
Bit 7 6 5 4 3 2 1 0
BASE+20 X X X X X X X X
3.7 Digital I/O register
There are 16 digital input channels and 16 digital output channels provided
by the PCI-9112. The address Base + 1C is used to access digital inputs and
control digital outputs.
Address: BASE + 1C
Attribute: read only
Data Format:
Bit 7 6 5 4 3 2 1 0
Base + 1C DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0
Base + 1D DI15 DI14 DI13 DI12 DI11 DI10 DI9 DI8
Base + 1E --- --- --- --- --- --- --- ---
Base + 1F --- --- --- --- --- --- --- ---
Address: BASE + 1C
Attribute: write only
Data Format:
Bit 7 6 5 4 3 2 1 0
Base+1C DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
Base+1D DO15 DO14 DO13 DO12 DO11 DO10 DO9 DO8
Base+1E --- --- --- --- --- --- --- ---
Base+1F --- --- --- --- --- --- --- ---