Interrupt Function Of The Di Signals; Irq Level; Interrupt Control Register; Figure 2.5:Digital Input Wet Contact Diagram - Advantech UNO-3072A User Manual

Intel dual core atom embedded automation computer with two/four pci slot extensions

Table of Contents

Figure 2.5: Digital Input Wet Contact Diagram

2.5.3 Interrupt Function of the DI Signals

DI0 and DI1 can be used to generate hardware interrupts. Users can setup

the configuration of them by programming the interrupt control register.

The channels are connected to the interrupt circuitry. Users can disable/

enable interrupt function, select trigger type or latch the port data by set-

ting the Interrupt Control Register of the UNO-3072A/3074A. When the

interrupt request signals occur, then the software will service these inter-

rupt requests by ISR (Interrupt Service Routine). The multiple interrupt

sources provide the card with more capability and flexibility.

The IRQ level is by default set by the system BIOS. IRQ 7 is reserved for

DI interrupt and counter interrupt.

UNO-3072A/3074A User Manual

Table of Contents

Uno-3074a