Chapter 12
Real Time Clock (RTC)
RTC Operation
XII - 15
12.3 RTC Operation
When the RTCCTR.CLKEN is set to "1", RTC starts time counting by using the clock registers described in
[12.2.5 Clock Registers]. RTC has two types of interrupts, the periodic interrupt and the alarm interrupt.
The periodic interrupt occurs according to the condition set in the RTCCIRQ.
There are two alarm interrupts, Alarm-0 and Alarm-1.
<Alarm-0 interrupt>
Alarm-0 interrupt occurs when the condition which is defined with the AL0IRQMI, the AL0IRQH and the
AL0IRQW matches the calendar counter.
- When the RTCAL0IRQ.AL0IRQSET is "0", Alarm-0 interrupt does not occur.
- When the RTCAL0IRQ.AL0IRQWEN is "0", AL0IRQW is not compared with the calendar calculator.
- When the RTCAL0IRQ.AL0IRQHEN is "0", AL0IRQH is not compared with the calendar calculator.
- When the RTCAL0IRQ.AL0IRQMIEN is "0", AL0IRQMI is not compared with the calendar calculator.
<Alarm-1 interrupt>
Alarm-1 interrupt occurs when the condition which is defined with the AL1IRQMI, the AL1IRQH, the AL1IRQD
and the AL1IRQMO matches the calendar counter.
- When the RTCAL1IRQ.AL1IRQSET is "0", Alarm-1 interrupt does not occur.
- When the RTCAL1IRQ.AL1IRQMIEN is "0", AL1IRQMI is not compared with the calendar calculator.
- When the RTCAL1IRQ.AL1IRQHEN is "0", AL1IRQH is not compared with the calendar calculator.
- When the RTCAL1IRQ.AL1IRQDEN is "0", AL1IRQD is not compared with the calendar calculator.
- When the RTCAL1IRQ.AL1IRQMOEN is "0", AL1IRQMO is not compared with the calendar calculator.
Содержание MN101L Series
Страница 1: ...Cover MICROCOMPUTER MN101L MN101LR05D 04D 03D 02D LSI User s Manual Pub No 21705 015E ...
Страница 2: ......
Страница 8: ......
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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 ...