Overview Of Delayed Interrupt Generation Module - Fujitsu MB90895 Series Hardware Manual

CHAPTER 11 Delayed interrupt generation module
11.1

Overview of Delayed Interrupt Generation Module

The delayed interrupt generation module generates the interrupt for task switching.
The hardware interrupt request can be generated/cancelled by software.
I Overview of Delayed Interrupt Generation Module
By using the delayed interrupt generation module, a hardware interrupt request can be generated or
cancelled by software.
Table 11.1-1 Overview of Delayed Interrupt Generation Module
Interrupt Factor
Interrupt Number
Interrupt Control
Interrupt flag
2
EI OS
322
An interrupt request is generated by setting the R0 bit in the delayed interrupt
request generate/cancel register to 1 (DIRR: R0 = 1).
An interrupt request is cancelled by setting the R0 bit in the delayed interrupt
request generate/cancel register to 0 (DIRR: R0 = 0).
#42 (2A )
H
An interrupt is not enabled by the DIRR register.
The interrupt flag is held in the R0 bit in the DIRR register.
The DIRR register does not correspond to the EI
Function and Control
2
OS.