ACT
SENSE
PRIOR
VECTOR This vector is returned when the Interrupt Acknowledge
Raven-Detected Errors Destination Register
Offset
Bit
3
3
2
2
2
1
0
9
8
7
Name
Operation
R
Reset
$00
This register indicates the possible destinations for the Raven detected
error interrupt source. These interrupts operate in the Distributed interrupt
delivery mode.
P1
P0
ACTIVITY. The activity bit indicates that an interrupt
has been requested or that it is in-service. The ACT bit is
set to a one when its associated bit in the Interrupt Pending
Register or In-Service Register is set.
SENSE. This bit sets the sense for external interrupts.
Setting this bit to a zero enables positive edge sensitive
interrupts. Setting this bit to a one enables active low level
sensitive interrupts.
Interrupt priority 0 is the lowest and 15 is the highest.
Note that a priority level of 0 will not enable interrupts.
register is examined upon acknowledgedment of the
interrupt associated with this vector.
$10210
2
2
2
2
2
2
2
1
1
1
6
5
4
3
2
1
0
9
8
7
RAVEN DETECTED ERROR DESTINATION
R
$00
PROCESSOR 1. The interrupt is pointed to processor 1.
PROCESSOR 0. The interrupt is pointed to processor 0.
Raven Interrupt Controller Implementation
1
1
1
1
1
1
1
6
5
4
3
2
1
0 9 8 7 6 5 4 3 2 1 0
R
$00
2
R
$00
2-75