
Appendix A
Specifications for VXI-MXI-2
©
National Instruments Corporation
A-11
MXI-2 Configuration Reference Manual
VMEbus Capability Codes
Requirements
VXIbus configuration space................... 64 B
A24 or A32 space................................... 16 KB minimum (programmable)
Capability Code
Description
A32, A24, A16 (master)
VMEbus master A32, A24, and A16 addressing
A32, A24, A16 (slave)
VMEbus slave A32, A24, and A16 addressing
D32, D16, D08(EO) (master)
VMEbus master D32, D16, and D08 data sizes
D32, D16, D08(EO) (slave)
VMEbus slave D32, D16, and D08 data sizes
BLT, MBLT (master)
VMEbus master block and D64 transfers
BLT, MBLT (slave)
VMEbus slave block and D64 transfers
RMW (master)
VMEbus master read/modify/write transfers
RMW (slave)
VMEbus slave read/modify/write transfers
RETRY (master)
VMEbus master retry support
RETRY (slave)
VMEbus slave retry support
FSD
First slot detector
SCON
VMEbus System Controller
PRI, RRS
Prioritized or Round Robin Select arbiter
ROR, FAIR
Release on Request and FAIR bus requester
IH(7–1)
Interrupt handler for levels 7 to 1
I(7–1)
Interrupt requester for levels 7 to 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)