PCI-1002 Series Card
12-bit, 110 kS/s or 44 kS/s Multi-function Board
User Manual, Ver. 3.0, Jun. 2018, PMH-015-30, Page: 9
1.2.5
Interrupt Channel
Interrupt: INTA (Automatically assigned by PCI-initiator).
Enable/Disable: Via PCI control register and add-on control register.
Interrupt source: (Selected by on-board control register)
1.
AD conversion interrupt.
2.
Pacer 0 interrupt (Timer 0).
3.
Pacer 1 interrupt (Timer 1).
4.
External interrupt.
Figure 1-2: Programmable interrupt source.
1.2.6
Programmable Timer/Counter
Type:
82C54 – 8 programmable timer/counter.
Timers:
•
Timer 0
for Pacer triggers and interrupts.
•
Timer 1
for External trigger and interrupt.
•
Timer 2
for software machine independent timer.
AD busy
IRQ
End of Conversion
1.
Pacer 0
IRQ
Falling edge of Pacer 0
2.
Pacer 1
IRQ
Falling edge of Pacer 1
3.
External
Trigger
IRQ
Falling edge of
4.
