82093AA - Intel Corporation

82093AA I/O ADVANCED PROGRAMMABLE INTERRUPT CONTROLLER

at any time, without notice. The 82093AA IOAPIC may contain design defects or errors known as errata. Current characterized errata are available on request. Third-party brands and names are the property of their respective owners. © INTEL CORPORATION 1996 May 1996 Order Number: 290566-001 82093AA (IOAPIC) E CONTENTS PAGE 1.0. OVERVIEW ..

Features

both static and dynamic symmetric interrupt distribution across all processors. In systems with multiple I/O subsystems, each subsystem can have its own set of interrupts. Each interrupt pin is individually programmable as either edge or level triggered. The interrupt vector and interrupt steering information can be specified per interrupt. An indirect register accessing scheme optimizes the memory space needed to access the IOAPIC’s internal registers. To increase system flexibility when assigning memory space usage, the The IOAPIC’s 2-register memory space is re-locatable. D[7:0] D/I# A[1:0.