Xycom XVME-678 Manual page 129

5.6 VMEbus INTERRUPT HANDLER FUNCTIONS
XVME-678/688 Manual
July 1994
This group of functions is used to configure and process VMEbus interrupts-also referred to as Auxiliary
Maskable Interrupts (AMls)-received on IRQI0. Each of the seven VMEbus levels can be enabled or
disabled. If a VMEbus interrupt is pending, an interrupt acknowledge cycle (lACK) can be performed
using the Real Mode Window. Section 4.4 contains more information on AMls.
5.6.1 Get VMEbus Interrupt Group Configuration
This function indicates if the VMEbus Interrupt Group AMls are enabled or disabled.
Int ISh
Function AFH
Call
With:
Returns:
Subfunction SOH
AH
=
AFH
AL
=
SOH
If error: Carry Flag Set
If successful:
AH
=
Error Code
01
=
"XY"
Carry Flag Clear
AH
=
0
Dr
=
"XY"
BX
=
Current VMEbus interrupt group configuration
o -
VMEbus interrupt group disabled
1 - VMEbus interrupt group enabled
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