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