Chapter 3
Interrupts
Overview
III - 15
3.1.3
Maskable Interrupt Control Register Setup
Setting xICR.IR by software
xICR.IR is set to "1" when the interrupt trigger occurs, and cleared to "0" by hardware when the interrupt is
accepted. To operate IR by software, MEMCTR.IRWE needs to be set to "1".
Interrupt Control Register Setup Procedure
Setup procedures of xICR of maskable interrupt is described below:
Setup Procedure
Description
(1) Disable all maskable interrupts
PSW.MIE = 0
(1) Clear PSW.MIE to disable all maskable interrupts, which
is needed, especially before xICR is changed.
(2) Select the interrupt factor
(2) Select the interrupt factor such as interrupt edge selection,
or timer interrupt cycle change.
(3) Permission settings of multiple interrupt
MEMCTR.MIESET
(3) Set the permission of multiple interrupt. Multiple interrupt
is allowed when MIESET is set to "1".
(4) Enable the write interrupt request bit
MEMCTR.IRWE = 1
(4) Set MEMCTR.IRWE to enable IR to be rewritten, which is
needed only when IR is changed by software.
(5) Rewrite the interrupt request bit
xICR.IR
(5) Rewrite xICR.IR. (Clear the bit with this method because it
may already be set.)
(6) Disable the write interrupt request bit
MEMCTR.IRWE = 0
(6) Disable IR setting by software.
(7) Set the interrupt level
xICR.LV1-0
PSW.IM1-0
(7) Set the interrupt level of xICR and PSW.IM1-0.
(8) Enable the interrupt
xICR.IE = 1
(8) Set xICR.IE to enable the interrupt.
(9) Enable all maskable interrupts
PSW.MIE = 1
(9) Enable all maskable interrupts.
Содержание MN101L Series
Страница 1: ...Cover MICROCOMPUTER MN101L MN101LR05D 04D 03D 02D LSI User s Manual Pub No 21705 015E ...
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Страница 11: ...Contents Contents 0 ...
Страница 22: ... Contents 11 ...
Страница 23: ...I Chapter 1 Overview 1 ...
Страница 62: ...Chapter 1 Overview I 40 Cautions for Circuit Setup ...
Страница 63: ...II Chapter 2 CPU 2 ...
Страница 94: ...Chapter 2 CPU II 32 Reset ...
Страница 95: ...III Chapter 3 Interrupts 3 ...
Страница 143: ...IV Chapter 4 Clock Mode Voltage Control 4 ...
Страница 175: ...V Chapter 5 Watchdog Timer WDT 5 ...
Страница 180: ...Chapter 5 Watchdog Timer WDT V 6 Operation ...
Страница 181: ...VI Chapter 6 Power Supply Voltage Detection 6 ...
Страница 189: ...VII Chapter 7 I O Port 7 ...
Страница 248: ...Chapter 7 I O Port VII 60 Port 8 ...
Страница 249: ...VIII Chapter 8 8 bit Timer 8 ...
Страница 282: ...Chapter 8 8 bit Timer VIII 34 8 bit Timer Cascade Connection ...
Страница 283: ...IX Chapter 9 16 bit Timer 9 ...
Страница 346: ...Chapter 9 16 bit Timer IX 64 IGBT Output with Dead Time ...
Страница 347: ...X Chapter 10 General Purpose Time Base Free Running Timer 10 ...
Страница 361: ...XI Chapter 11 RTC Time Base Timer RTC TBT 11 ...
Страница 371: ...XII Chapter 12 Real Time Clock RTC 12 ...
Страница 389: ...XIII Chapter 13 Serial Interface 13 ...
Страница 458: ...Chapter 13 Serial Interface XIII 70 IIC Communication ...
Страница 459: ...XIV Chapter 14 DMA Controller 14 ...
Страница 472: ...Chapter 14 DMA Controller XIV 14 DMA Data Transfer ...
Страница 473: ...XV Chapter 15 Buzzer 15 ...
Страница 479: ...XVI Chapter 16 A D Converter ADC 16 ...
Страница 493: ...XVII Chapter 17 LCD 17 ...
Страница 530: ...Chapter 17 LCD XVII 38 LCD Display Examples ...
Страница 531: ...XVIII Chapter 18 ReRAM 18 ...
Страница 538: ...Chapter 18 ReRAM XVIII 8 Command Library ...
Страница 539: ...XIX Chapter 19 On Board Debugger 19 ...
Страница 542: ...Chapter 19 On Board Debugger XIX 4 List of on board debugging functions ...
Страница 543: ...XX Chapter 20 Appendix 20 ...
Страница 555: ...Chapter 20 Appendix Instruction map XX 13 ...