Motorola MVME2300 Series User Manual download pdf (Page 146)

2-76 Computer Group Literature Center Web Site

Raven PCI Bridge ASIC

The Soft Reset input to the MPC603 or MPC604 is negative-edge-

sensitive.

IPI Vector/Priority Registers

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 1 when its associated bit in the Interrupt Pending

PRIOR Interrupt Priority. Priority 0 is the lowest and 15 is the

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 during a

request for the interrupt associated with this vector.

Offset IPI 0 - $010A0

IPI 1 - $010B0

IPI 2 - $010C0

IPI 3 - $010D0

Bit 3

09876543210

Name IPI VECTOR/PRIORITY

MASK

ACT

PRIOR VECTOR

Operation

R/W

R R/W R R/W

Reset

$000 $0 $00 $00

1 2 ... 141 142 143 144 145 146 147 148 149 150 151 ... 281 282

No comments

Motorola MVME2300 Series User Manual Page 146