Outline Of Delayed Interrupt Module - Fujitsu MB96300 series Hardware Manual

F2mc-16fx 16-bit

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CHAPTER 5 DELAYED INTERRUPT

Outline of Delayed Interrupt Module

The Delayed Interrupt source module is used to generate interrupts for task switching.

Using this module, interrupts to the F

■ Block diagram of Delayed Interrupt

Figure 5.1-1 "Block diagram of Delayed Interrupt" is a block diagram of the Delayed Interrupt source

Delayed Interrupt Register

■ Notes on operation

The Delayed Interrupt signal is activated by writing "1" to the corresponding bit of DIRR and inactivated by

writing "0" to the same bit. Therefore, the interrupt bit in DIRR should be cleared to "0" within the interrupt

service routine. Otherwise the same interrupt is serviced again right after the first interrupt service is

Compared to other hardware interrupts, the delayed interrupt has lowest priority in the case of same levels are

configured in the ICR register. For the delayed interrupt, priority is independent from the interrupt number.

The delayed interrupt uses the interrupt vector of INT #12.

MC-16FX CPU can be requested and canceled by

Figure 5.1-1 Block diagram of Delayed Interrupt

Cause FF (R0)

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