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CHAPTER 17 16-BIT PPG TIMER
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Hardware Trigger
"Hardware trigger" refers to PPG activation by signal input to the TRG input pin. When EGS1 and EGS0
are set to "11" and the hardware trigger is used with TRG input, PPG starts operation on a rising edge and
halts the operation upon the detection of a falling edge.
Moreover, the PPG timer begins operation of the following rising edge from the beginning.
The operation can be retriggered by a valid TRG input hardware trigger regardless of the retrigger setting
of the RTRG bit when the TRG input hardware trigger has been selected.
Figure 17.7-5 Hardware Trigger in PWM Mode
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Setup Procedure Example
The 16-bit PPG timer is set up in the following procedure:
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Initial setup
1) Set the interrupt level (ILR5)
2) Enable the hardware trigger and interrupts, select the interrupt type, and enable output (PCNTL)
3) Select the count clock and the mode, and enable timer operation (PCNTH)
4) Set the cycle (PCSR)
5) Set the duty (PDUT)
6) Start the PPG by the software trigger (PCNTH:STGR = 1)
●
Interrupt processing
1) Process any interrupt
2) Clear the interrupt request flag (PCNTL:IRQF)
m
n
0
(1)=n × T ns
(2)=m × T ns
PPG
(1)
(2)
(Normal polarity)
(Inverted polarity)
Time
Counter value
Hardware trigger
Falling edge detected
Rising edge detected
n : PDUTH0 & PDUTL0 register value
m: PCSRH0 & PCSRL0 register value
T : Count clock cycle
Содержание F2 MC-8FX Family
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Страница 30: ...16 CHAPTER 1 DESCRIPTION 1 FPT 64P M23 FPT 64P M24 2 For the I O circuit type refer to 1 8 I O Circuit Type ...
Страница 34: ...20 CHAPTER 1 DESCRIPTION ...
Страница 35: ...21 CHAPTER 2 HANDLING DEVICES This chapter gives notes on using 2 1 Device Handling Precautions ...
Страница 38: ...24 CHAPTER 2 HANDLING DEVICES ...
Страница 39: ...25 CHAPTER 3 MEMORY SPACE This chapter describes memory space 3 1 Memory Space 3 2 Memory Map ...
Страница 43: ...29 CHAPTER 4 MEMORY ACCESS MODE This chapter describes the memory access mode 4 1 Memory Access Mode ...
Страница 56: ...42 CHAPTER 5 CPU ...
Страница 73: ...59 CHAPTER 6 CLOCK CONTROLLER ...
Страница 96: ...82 CHAPTER 6 CLOCK CONTROLLER ...
Страница 104: ...90 CHAPTER 7 RESET ...
Страница 105: ...91 CHAPTER 8 INTERRUPTS This chapter explains the interrupts 8 1 Interrupts ...
Страница 174: ...160 CHAPTER 10 TIMEBASE TIMER ...
Страница 184: ...170 CHAPTER 10 TIMEBASE TIMER ...
Страница 218: ...204 CHAPTER 13 WATCH PRESCALER ...
Страница 257: ...243 CHAPTER 16 8 16 BIT COMPOSITE TIMER ...
Страница 261: ...247 CHAPTER 16 8 16 BIT COMPOSITE TIMER ...
Страница 288: ...274 CHAPTER 16 8 16 BIT COMPOSITE TIMER ...
Страница 301: ...287 CHAPTER 17 16 BIT PPG TIMER ...
Страница 316: ...302 CHAPTER 17 16 BIT PPG TIMER ...
Страница 382: ...368 CHAPTER 21 UART SIO DEDICATED BAUD RATE GENERATOR ...
Страница 390: ...376 CHAPTER 22 I2C ...
Страница 395: ...381 CHAPTER 22 I2C ...
Страница 399: ...385 CHAPTER 22 I2C ...
Страница 430: ...416 CHAPTER 23 10 BIT A D CONVERTER ...
Страница 476: ...462 CHAPTER 24 LCD CONTROLLER ...
Страница 482: ...468 CHAPTER 25 LOW VOLTAGE DETECTION RESET CIRCUIT ...
Страница 494: ...480 CHAPTER 26 CLOCK SUPERVISOR ...
Страница 507: ...493 CHAPTER 27 REAL TIME CLOCK ...
Страница 523: ...509 CHAPTER 27 REAL TIME CLOCK ...
Страница 532: ...518 CHAPTER 27 REAL TIME CLOCK ...
Страница 536: ...522 CHAPTER 28 256 KBIT FLASH MEMORY ...
Страница 554: ...540 CHAPTER 28 256 KBIT FLASH MEMORY ...
Страница 564: ...550 CHAPTER 29 EXAMPLE OF SERIAL PROGRAMMING CONNECTION ...
Страница 595: ...581 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Страница 596: ...582 INDEX Index ...
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Страница 599: ...585 Pin Function Index V2 LCD power supply driving pin 2 439 V3 LCD power supply driving pin 3 439 ...
Страница 600: ...586 Pin Function Index ...
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