Hawk Mpic; Table 5-2. Mpic Interrupt Assignments - Motorola MVME2400 Series Programmer's Reference Manual

Hawk MPIC

The Hawk ASIC has a built-in interrupt controller that meets the Multi-
Processor Interrupt Controller (MPIC) Specification. This MPIC supports
up to two processors and 16 external interrupt sources. There are also six
other interrupt sources inside the MPIC: two cross-processor interrupts
and four timer interrupts. All ISA interrupts go through the 8259 pair in the
PIB. The output of the PIB then goes through the MPIC in the Hawk. Refer
to Chapter 2, Hawk PCI Host Bridge & Multi-Processor Interrupt
Controller
interrupt assignments for the MPIC on the MVME2400 series:

Table 5-2. MPIC Interrupt Assignments

MPIC Edge/ Polarity
IRQ Level
IRQ0 Level High
IRQ1 N/A N/A
IRQ2 Level Low
IRQ3 Level Low
IRQ4 Level Low
IRQ5 Level Low
IRQ6 Level Low
IRQ7 Level Low
IRQ8 Level Low
IRQ9 Level Low
IRQ10 Level Low
IRQ11 Level Low
IRQ12 Level Low
IRQ13 Level Low
IRQ14 Level Low
IRQ15 N/A N/A
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for details on the MPIC. The following table shows the
Interrupt Source
PIB (8259)
Not used
PCI-Ethernet
Hawk WDT1O_L (resistor population option)
Hawk WDT20_L (resistor population option)
PCI-VME INT 0 (Universe II LINT0#)
PCI-VME INT 1 (Universe II LINT1#)
PCI-VME INT 2 (Universe II LINT2#)
PCI-VME INT 3 (Universe II LINT3#)
PCI-PMC1 INTA#, PMC2 INTB#, PCIX INTA#
PCI-PMC1 INTB#, PMC2 INTC#, PCIX INTB#
PCI-PMC1 INTC#, PMC2 INTD#, PCIX INTC#
PCI-PMC1 INTD#, PMC2 INTA#, PCIX INTD#
LM/SIG Interrupt 0
LM/SIG Interrupt 1
Not used
Interrupt Handling
5
Notes
1
3
2,3
2
2
2
3
3
3
5-3