Chapter 8
8-bit Timer
8-bit PWM Output
VIII - 25
8.6
8-bit PWM Output
8.6.1
Operation (Timer 0, Timer 2 and Timer 4)
8-bit PWM Output Operation
Timer 0, Timer 2 and Timer 4 have PWM function. a PWM waveform with a given duty cycle is generated by set-
ting TMnOC to "High" period of the PWM duty. And the period of the PWM is the time of the full count overflow
of the 8-bit timer.
For PWM output pins, refer to Table:8.1.1.
Count Timing of PWM Output (at Normal)
Figure:8.6.1 Count Timing of PWM Output (at Normal)
When TMnPOP bit is "0":
• (A) PWM output is "High" while TMnBC counts up from "0x01" to the setting value of TMnOC.
• (B) PWM output changes to "Low" when TMnBC matches the setting value of TMnOC, then TMnBC contin-
ues counting up until it overflows.
..
As for the initial setting, the PWM output is changed from "Low" to "High" when setting the
TMnMD.TMnPWM (when TMnPOP bit = 0) to select the PWM operation.
..
N
N+1
N+2
FE
FF
Count
clock
TMnEN
bit
Compare
register
Binary
counter
Interrupt
request
00
01
N+1
N-1
N
00
01
N-1
N
TMnIO output
(PWM output)
(A)
(B)
PWM basic waveform (overflow time of binary counter)
Time set in the compare register
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 ...