2-2 Computer Group Literature Center Web Site
Hawk PCI Host Bridge & Multi-Processor Interrupt Controller
2
– Read-ahead buffer for reads from the PPC bus.
– Four independent software programmable slave map decoders.
❏Interrupt Controller
–MPIC compliant.
– MPIC programming model.
– Support for 16 external interrupt sources and two processors.
– Supports 15 programmable Interrupt and Processor Task priority
levels.
– Supports the connection of an external 8259 for ISA/AT
compatibility.
– Distributed interrupt delivery for external I /O interrupts.
– Multiprocessor interrupt control allowing any interrupt sour ce to
be directed to either processor.
– Multilevel cross processor interrupt control for multiprocessor
synchronization.
– Four Interprocessor Interrupt sources
– Four 32-bit tick timers.
– Processor initialization control
❏Two 64-bit general purpose registers for cross-processor
messaging.