Xycom XVME-678 Manual page 123

XVME-678/688 Manual
July 1994
5.5.2 Set VMEbus Master Configuration
This function provides the ability to modify the configuration of the VMEbus master interface. Parameters
that may be modified are the same as those mentioned in Section 5.5.1. The previous configuration of the
master interface is returned upon completion.
Int 15h
Function AFH
Call With:
Subfunction 31H
AFH
= 31H
AH
AL
BX
=
Desired VMEbus master configuration
Bit 0 0
1
Bit 2 0
1
Bit 3-4 00
01
10
11
Bit 5 0
1
Returns appear on the following page.
- VMEbus master interface disabled
VMEbus master interface enabled
- VMEbus master accesses non-privileged
- VMEbus master accesses supervisory
VMEbus request level 3
VMEbus request level 2
VMEbus request level 1
VMEbus request level 0
- Release VMEbus when done
- Release VMEbus on request
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