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CHAPTER 13 PWC TIMER
13.3 Movement of PWC Timer
■ Operation Flow of Pulse Width Measurement
Figure 13.3-5 shows the pulse width measurement operation flow.
Overflow generation
314
Figure 13.3-5 Operation Flow of Pulse Width Measurement
Restart
Continuous
measurement mode
Measurement start
edge detection
Clear timer
Count start
Count up
OVIR flag set
Measurement edge
detection
EDIR flag set
Count stop
Read Timer value to PWCR
FUJITSU MICROELECTRONICS LIMITED
Count clock selection
Operation/
Each
Measurement
settings
mode selection
Interrupt flag clear
Interrupt enabled
Start by STRT bit
Overflow generation
OVIR flag set
MB90335 Series
Single
measurement mode
Measurement start
edge detection
Clear timer
Count start
Count up
Measurement edge
detection
EDIR flag set
Count stop
Operation stop
CM44-10137-6E
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