R4400 Microprocessor User's Manual

15. R4000 Processor Interrupts

The R4000 processor supports the following interrupts: six hardware interrupts, one internal "timer interrupt," two software interrupts, and one nonmaskable interrupt. The processor takes an exception on any interrupt.

This chapter describes the six hardware and single nonmaskable interrupts. A description of the software and the timer interrupts can be found in Chapter 5. CPU exception processing is also described in Chapter 5.

Floating-point exception processing is described in Chapter 6.

Chapter Contents

15.1 - Hardware Interrupts
15.2 - Nonmaskable Interrupt (NMI)
15.3 - Asserting Interrupts

Copyright 1996, MIPS Technologies, Inc. -- 21 MAR 96

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