Interrupt Control; Interrupt Mode Select Table; Interrupt Read; Figure 13-Interrupt Control Tables - SeaLevel PIO-24.PCI 8008 User Manual

Interrupt control

IRQENX interrupt enable
IRQCX0
IRQCX1

Interrupt mode select table

Interrupt Read

Reading this port clears a pending interrupt
IRQST1
IRQST2
Sealevel Systems PIO-24.PCI
1 = enabled
Interrupt mode select see table
Interrupt mode select see table
IRQCX1 IRQCX0
0 0
0 1
1 0
1 1
(D0) Interrupt status
(D4) Interrupt status

Figure 13-Interrupt Control Tables

Technical Description
0 = disabled ( 0 on power up )
INT Type
Low level
High level
Falling edge
Rising edge
1 = interrupt pending, 0 = none
1 = interrupt pending, 0 = none
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