Operation Of Delayed Interrupt Module - Fujitsu MB91260B Series Hardware Manual

CHAPTER 7 REALOS-RELATED HARDWARE
7.3

Operation of Delayed Interrupt Module

A delayed interrupt generates an interrupt for switching tasks. Use this function to
allow software to generate and clear an interrupt request for the CPU.
■ Interrupt Number
A delayed interrupt is assigned to the interrupt source corresponding to the largest interrupt number.
On MB91260B series, a delayed interrupt is assigned to interrupt number 63 (3F
■ DLYI Bit of DICR
Write "1" to this bit to generate a delayed interrupt source. Write "0" to it to clear a delayed interrupt
source.
This bit is the same as the interrupt source flag for a normal interrupt. Therefore, clear this bit and
switch tasks in the interrupt routine.
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