Motorola MVME172 - Manual (Page 166)

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2
Interrupt Clear Register (bits 8-15)
This register is used to clear the edge software interrupts. An interrupt is
cleared by writing a one to its clear bit. The clear bits are:
CSW0 Clear software 0 interrupt.
CSW1 Clear software 1 interrupt.
CSW2 Clear software 2 interrupt.
CSW3 Clear software 3 interrupt.
CSW4 Clear software 4 interrupt.
CSW5 Clear software 5 interrupt.
CSW6 Clear software 6 interrupt.
CSW7 Clear software 7 interrupt.
Interrupt Level Register 1 (bits 24-31)
This register is used to define the level of the abort interrupt and the
ACFAIL interrupt.
AB LEVEL Not used on MVME172.
ACF LEVEL These bits define the level of the ACFAIL interrupt.
ADR/SIZ $FFF40074 (8 bits of 32)
BIT 15 14 13 12 11 10 9 8
NAME CSW7 CSW6 CSW5 CSW4 CSW3 CSW2 CSW1 CSW0
OPER C C C C C C C C
RESET X X X X X X X X
ADR/SIZ $FFF40078 (8 bits [6 used] of 32)
BIT 31 30 29 28 27 26 25 24
NAME ACF LEVEL AB LEVEL
OPER R/W R/W
RESET 0 PSL 0 PSL