248
Chapter 5 Interrupt
5.1.3 Hardware Interrupts
There are two types in hardware interrupts; special interrupts and peripherai function interrupts.
●
Special interrupts
Special interrupts are nonmaskable interrupts.
(1) Watchdog timer interrupt
This interrupt is caused by the watchdog timer. Initialize the watchdog timer after the watchdog timer
interrupt is generated. For details about the watchdog timer interrupt, refer to the R8C’s Hardware
Manual.
(2) Oscillation stop detection interrupt
This interrupt is caused by the oscillation stop detection interrupt. For details about the oscillation stop
detection interrupt, refer to the R8C’s Hardware Manual.
(3) Single-step interrupt
This interrupt is used exclusively for development support tools. Do not use this interrupt.
(4) Address-match interrupt
When any one of AIER0 bit or AIER1 bit of AIER register is “1” (address-match interrupt is enabled), the
address-match interrupt is generated just before executing the instruction of the address shown by
corresponding RMAD0 to RMAD1 registers.
●
Peripheral function interrupts
These interrupts are generated by the peripheral functions built into the microcomputer system. Periph-
eral function interrupts are maskable interrupts.
The types of built-in peripheral functions vary with each R8C model, so do the types of interrupt causes.
For details about peripheral function interrupts, refer to the R8C’s Hardware Manual.
5.1 Outline of Interrupt
Содержание R8C/Tiny Series
Страница 50: ...Chapter 3 Functions 3 1 Guide to This Chapter 3 2 Functions...
Страница 151: ...134 Chapter 3 Functions 3 2 Functions Blank for page layout...
Страница 152: ...Chapter 4 Instruction Code Number of Cycles 4 1 Guide to This Chapter 4 2 Instruction Code Number of Cycles...
Страница 278: ...Chapter 6 Calculation Number of Cycles 6 1 Instruction queue buffer...
Страница 287: ...Glossary 1 Glossary Technical terms used in this software manual are explained below They are good in this manual only...
Страница 291: ...Symbol 1 Table of symbols Symbols used in this software manual are explained below They are good in this manual only...
Страница 295: ...REVISION HISTORY R8C Tiny Series SOFTWARE MANUAL Rev Date Description Page Summary B 1 1 00 Jun 19 03 First Edition...
Страница 297: ...R8C Tiny Series Software Manual 2 6 2 Ote machi Chiyoda ku Tokyo 100 0004 Japan...