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Appendix A
Specifications
A-4
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PRI, RRS
Prioritized or Round Robin Select arbiter
ROR, RWD, FAIR
Release on Request, Release When Done, and FAIR bus requester
IH(7
–
1)
Interrupt handler for levels 7
–
1
I(7
–
1)
Interrupt requester for levels 7
–
1
D32, D16, D08(O) (Interrupt Handler)
VMEbus D32, D16, D08(O) interrupt handler
D32, D16, D08(O) (Interrupter)
VMEbus D32, D16, D08(O) interrupter
ROAK, RORA
Release on Acknowledge or Register Access interrupter
BTO(
x
)
VMEbus bus timer (programmable limit)
LOCK
Can lock the VMEbus for indivisible transfers