User`s guide

32 • Registers
3.17 Digital I/O register
There are 16 digital input and 16 digital output channels provided by the
PCI-9111. The address Base+1C is used to access the digital inputs and
control the digital outputs.
Address: BASE + 2h
Attribute: read only
Data Format:
Bit 7 6 5 4 3 2 1 0
Base + 2h DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0
Base + 3h DI15 DI14 DI13 DI12 DI11 DI10 DI9 DI8
Address: BASE + 2h
Attribute: write only
Data Format:
Bit 7 6 5 4 3 2 1 0
Base + 2h DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
Base + 3h DO15 DO14 DO13 DO12 DO11 DO10 DO9 DO8