Interrupts from EVBU Peripherals
| Interrupt |
Use |
Setup |
Enable |
Flag |
Clear Flag |
Vector |
| RTC |
Periodic Interrupts, |
SPI Setup |
RTC ICR |
RTC SR |
Read RTC SR |
XIRQ_VEC |
| |
Alarm, Power Fail, |
RTC CCR |
|
|
over SPI |
|
| |
Watch Dog |
RTC ICR |
|
|
|
|
| PIA CA1 |
External Edge |
PIA CRA[1] |
PIA CRA[0] |
PIA_CRA[7] |
Read PIA Port A |
IRQ_ISR |
| PIA CA2 |
External Edge |
PIA CRA[5:4] |
PIA_CRA[3] |
PIA_CRA[6] |
Read PIA Port A |
IRQ_ISR |
| PIA CB1 |
External Edge |
PIA CRB[1] |
PIA CRB[0] |
PIA_CRB[7] |
Read PIA Port B |
IRQ_ISR |
| PIA CB2 |
External Edge |
PIA CRB[5:4] |
PIA_CRB[3] |
PIA_CRB[6] |
Read PIA Port B |
IRQ_ISR |
Last Updated on 5/1/98
By Bill Rison