Motorola MVME2300 Series 用户手册
Raven Interrupt Controller
http://www.motorola.com/computer/literature
2-83
2
Raven-Detected Errors Vector/Priority Register
MASK
Mask. Setting this bit disables any further interrupts from
this source. If the mask bit is cleared while the bit
associated with this interrupt is set in the IPR, the interrupt
request will be generated.
this source. If the mask bit is cleared while the bit
associated with this interrupt is set in the IPR, the interrupt
request will be generated.
ACT
Activity. The activity bit indicates that an interrupt has
been requested or that it is in-service. The ACT bit is set
to a 1 when its associated bit in the Interrupt Pending
register or In-Service register is set.
been requested or that it is in-service. The ACT bit is set
to a 1 when its associated bit in the Interrupt Pending
register or In-Service register is set.
SENSE
Sense. This bit sets the sense for external interrupts.
Setting this bit to a 0 enables positive edge sensitive
interrupts. Setting this bit to a 1 enables active low level
sensitive interrupts.
Setting this bit to a 0 enables positive edge sensitive
interrupts. Setting this bit to a 1 enables active low level
sensitive interrupts.
PRIOR
Interrupt Priority. Priority 0 is the lowest and 15 is the
highest. Note that a priority level of 0 will not enable
interrupts.
highest. Note that a priority level of 0 will not enable
interrupts.
VECTOR Interrupt Vector. This vector is returned when the
Interrupt Acknowledge register is examined upon
acknowledgment of the interrupt associated with this
vector.
acknowledgment of the interrupt associated with this
vector.
Offset
$10200
Bit
3
1
1
3
0
0
2
9
9
2
8
8
2
7
7
2
6
6
2
5
5
2
4
4
2
3
3
2
2
2
2
1
1
2
0
0
1
9
9
1
8
8
1
7
7
1
6
6
1
5
5
1
4
4
1
3
3
1
2
2
1
1
1
1
0 9 8 7 6 5 4 3 2 1 0
0 9 8 7 6 5 4 3 2 1 0
Name
RAVEN DETECTED ERRORS VECTOR/PRIORITY
MA
SK
ACT
SEN
S
E
PRIOR
VECTOR
Operation
R/W
R
R
R
R/W
R
R
R/W
R
R/W
Reset
1
0
$000
0
0
0
0
$0
$00
$00