Motorola MVME172 用户手册
2-90
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VMEchip2
2
Interrupt Level Register 1 (bits 0-7)
This register is used to define the level of the tick timer 1 interrupt and the
tick timer 2 interrupt.
tick timer 2 interrupt.
TICK1 LEVEL These bits define the level of the tick timer 1 interrupt.
TICK2 LEVEL These bits define the level of the tick timer 2 interrupt.
Interrupt Level Register 2 (bits 24-31)
This register is used to define the level of the DMA controller interrupt and
the VMEbus acknowledge interrupt.
the VMEbus acknowledge interrupt.
DMA LEVEL These bits define the level of the DMA controller
interrupt.
VIA LEVEL
These bits define the level of the VMEbus interrupter
acknowledge interrupt.
acknowledge interrupt.
ADR/SIZ
$FFF40078 (8 bits [6 used] of 32)
BIT
7
6
5
4
3
2
1
0
NAME
TICK2 LEVEL
TICK1 LEVEL
OPER
R/W
R/W
RESET
0 PSL
0 PSL
ADR/SIZ
$FFF4007C (8 bits [6 used] of 32)
BIT
31
30
29
28
27
26
25
24
NAME
VIA LEVEL
DMA LEVEL
OPER
R/W
R/W
RESET
0 PSL
0 PSL