Ipi Vector/Priority Registers - Motorola MVME2400 Series Programmer's Reference Manual

IPI Vector/Priority Registers

Offset IPI 0 - $010A0
IPI 1 - $010B0
IPI 2 - $010C0
IPI 3 - $010D0
Bit 3 3 2 2 2 2
1 0 9 8 7 6
Name IPI VECTOR/PRIORITY
Operation R
Reset $000
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.
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 one when its
associated bit in the Interrupt Pending Register or In-Service Register
is set.
PRIOR Interrupt priority 0 is the lowest and 15 is the highest. Note
that a priority level of 0 will not enable interrupts.
VECTOR This vector is returned when the Interrupt Acknowledge
register is examined during a request for the interrupt associated with
this vector.
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2 2 2 2 2 2 1 1 1 1 1
5 4 3 2 1 0 9 8 7 6 5
PRIOR
R/W R
$0 $00
1 1 1 1 1
4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
VECTOR
R/W
$00
Registers
2
2-111