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Chapter 27 delayed interrupt, Overview, Features – FUJITSU MB91460 SERIES FR60 User Manual

Page 399: Configuration, Delay interrupt

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Chapter 27 Delayed Interrupt

1.Overview

Chapter 27 Delayed Interrupt

1. Overview

The delayed interrupt, or the delayed interrupt module is used to generate an interrupt used for task switching.

2. Features

• Type: Interrupt request bit (There is no interrupt request enable bit)

• Quantity: 1

• Other:

• The software generates/releases interrupt request.

• Real time OS uses the delayed interrupt for task switching.

3. Configuration

Figure 3-1 Configuration Diagram

Figure 3-2 List of Registers

Delay interrupt
control circuit

Software request

Interrupt request (#63)

Delay interrupt

Delay interrupt control circuit

Interrupt request (#63)

Delay interrupt control bit

DLYI

DICR: bit 0

0

1

Without interrupt

With interrupt

0

1

Delay interrupt release

Delay interrupt request

Read

Write