Fujitsu MB90335 Series Hardware Manual page 356

MB90335 Series
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Operation of External trigger
When a valid edge (rising edge, falling edge, or both edges can be selected) is input to the TIN0 pin, the
counter is started.
Figure 14.3-8 shows the external trigger operation in the one-shot mode.
Figure 14.3-8 Count Operation in One-shot Mode (external Trigger Operation)
Count clock
Counter
Data load
signal
UF bit
CNTE bit
TIN0 pin
2T to 2.5T*
TOT0 pin
T: Machine cycle
*: It takes 2T to 2.5T time from trigger input to loading of reload data.
Note:
Input a trigger pulse of which width is 2/φ or more to the TIN0 pin.
CM44-10137-6E
−1
Reload 0000 FFFF
H
data
Start trigger input wait
FUJITSU MICROELECTRONICS LIMITED
−1
Reload
H
data
CHAPTER 14 16-BIT RELOAD TIMER
14.3 Movement of 16-bit Reload Timer
0000 FFFF
H H
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