Chapter 11
RTC Time Base Timer (RTC-TBT)
XI
- 2
Overview
11.1 Overview
RTC time base timer (RTC-TBT) generates 1 Hz clock with SCLK of 32.768 kHz for Real Time Clock (RTC).
11.1.1
Functions
Table:11.1.1 shows the function of RTC-TBT.
Table:11.1.1 RTC-TBT Function
Figure:11.1.1 RTC-TBT Block Diagram
Function
Description
Clock source
SCLK (SOSCCLK or SRCCLK is selected.)
Interrupt
Frequency of RTC-TBT interrupt
1 Hz, 2 Hz, 4 Hz, 8 Hz, 16 Hz, 32 Hz, 64 Hz, 128 Hz
(In the case of SCLK of 32.768 kHz)
Adjustment for the 1 Hz clock period
When selecting 32.768 kHz clock,
Range:
Period of 128 sec:
- 488 ppm to + 488 ppm
Period of 32 sec: - 1954 ppm to + 1952 ppm
Period of
8 sec: - 7813 ppm to + 7805 ppm
Period of
2 sec: - 31250 ppm to + 31220 ppm
Accuracy:
Period of 128 sec: 0.48 ppm
Period of 32 sec: 1.92 ppm
Period of
8 sec: 7.63 ppm
Period of
2 sec: 30.52 ppm
7 bit counter
SOSCCLK
Frequency
Adjustment
T128HZ
T64HZ
T32HZ
T16HZ
T8HZ
T4HZ
T2HZ
T1HZ
8
SRCCLK
TBTCNT0.TBTCLKSEL
8 bit counter
Содержание MN101L Series
Страница 1: ...Cover MICROCOMPUTER MN101L MN101LR05D 04D 03D 02D LSI User s Manual Pub No 21705 015E ...
Страница 2: ......
Страница 8: ......
Страница 10: ......
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 ...