Chapter 8
8-bit Timer
8-bit Timer
VIII - 19
8.3.2
Setup Example
Timer Operation Setup Example (Timer 0 to Timer 5)
Here is an example that the periodic interrupt of Timer 0 is generated to execute the timer function. An interrupt is
generated every 250 cycles (200
µ
s) by selecting SYSCLK/2 (at f
sysclk
= 2.5 MHz operation) as a clock source.
The setup procedure and the description of each step are shown below.
Step
Setting
Symbol
Description
1
Disable the timer counter
TM0MD.TM0EN = 0
Disable the timer count operation.
2
Disable the interrupt
TM0ICR.TM0IE = 0
Disable the timer interrupt.
3
Set the timer mode register
TM0MD.TM0PWM = 0
TM0MD.TM0MOD = 0
Select the normal timer operation.
4
TM0MD.TM0CK1-0 = 01
Select the clock source.
5
Set the prescaler
CK0MD.TM0PSC1-0 = X0
CK0MD.TM0BAS = 1
Select SYSCLK/2.
6
Set the interrupt cycle
TM0OC = 0xF9
Set the cycle of timer interrupt.
Setup value: 249 (0xF9)
7
Set the interrupt level
TM0ICR.TM0LV1-0
Refer to [3.1.3 Maskable Interrupt Control Register Setup].
8
Enable the interrupt
TM0ICR.TM0IE = 1
9
Enable the timer counter
TM0MD.TM0EN = 1
Enable the timer count operation.
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 ...