Radstone PME 68-1B, Manual

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Interrupt Level Assignment
The PME68/Monitor has the following interrupt level vector assignments:
Default Interrupt Exception Vector
Levels of the VMEBus (68000 CPU) Comment
Spurious Interrupt $ 60 INTR TRAP ERROR
IRQ7* $ 7C AV # 7 TRAP ERROR
IRQ6* $ 78 AV # 6 TRAP ERROR
IRQ5* $ 74 AV # 5 TRAP ERROR
IRQ4* $ 70 AV # 4 TRAP ERROR
IRQ3* $ 6C AV # 3 TRAP ERROR
IRQ2* $ 68 AV # 2 TRAP ERROR
IRQ1* $ 64 AV # 1 TRAP ERROR
NOTE: The USER INTERRUPT vectors from $100 - $3FF are preset with the
message: ???? TRAP ERROR.
The hardware interrupt level assignment is described in Chapter 3.
As the Monitor shares resources with the user application program, the contents of
individual vectors must be saved and restored to ensure proper function of the firmware.
The vectors are re-initialised during a RESET sequence.
If a Trap through one of these locations occurs, a message is output identifying the
vector address, i.e.
BUS TRAP ERROR
ADDR TRAP ERROR
UT0 TRAP ERROR
AV7 TRAP ERROR
and the internal registers of the CPU are displayed.
PME68-1B Manual
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