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General Description
Table 2-3. VXI-MXI VMEbus Compliance Levels (Continued)
Compliance Notation
Bus Master Compliance Levels
D08(EO)
D16 & D08(EO)
D32
A16
A24
A32
BLT
RMW
Interrupter Compliance Levels
I(7-1)
D16 & D32
ROAK
Interrupt Handler Compliance Levels
IH(7-1)
D16
VXI-MXI User Manual
Description
8-bit data path from MXIbus
8-bit or 16-bit data path from MXIbus
32-bit data path from MXIbus
Generates 16-bit short I/O addresses when specified
by the MXIbus address modifier lines
Generates 24-bit memory addresses when specified
by the MXIbus address modifier lines
Generates 32-bit memory addresses when specified
by the MXIbus address modifier lines
Generates block mode transfers when specified
by the MXIbus address modifier lines
Can generate Read-Modify-Write cycles
Can generate an interrupt request on interrupt lines
IRQ7 through IRQ1
Responds to 16-bit and 32-bit interrupt acknowledge
cycles by providing a 16-bit Status/ID byte on D00
through D15
Releases its interrupt request line when its Status/ID
is read during an interrupt acknowledge cycle
Can generate interrupt acknowledge cycles in
response to interrupt requests on IRQ7 through IRQ1
Generates a 16-bit interrupt acknowledge cycle in
response to a VMEbus interrupt request
2-4
© National Instruments Corporation
Chapter 2
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