Fujitsu F2MC-16LX Hardware Manual page 416

CHAPTER 16 16-BIT RELOAD TIMER
Figure 16.3-8 Count Operation in One-shot Mode (external Trigger Operation)
Count clock
Counter
Data load
signal
UF bit
CNTE bit
TIN pin
2T to 2.5T*
TOT 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 TIN pin.
Operation of gate input
While the valid level ("H" level or "L" level can be selected) is being input to the TIN pin, the count
operation is performed. Figure 16.3-9 shows the gate input operation in the one-shot mode.
Figure 16.3-9 Count Operation in One-shot Mode (Soft Trigger Gate Input Operation)
Count clock
Counter
Data load
signal
UF bit
CNTE bit
TRG bit
T*
TOT pin
T: Machine cycle
*: It takes 1T time from trigger input to loading of reload data.
Note:
Input a gate input of which pulse width is 2/φ or more to the TIN pin.
400
−1
Reload 0000 FFFF
H
data
Start trigger input wait
−1
Reload
0000 FFFF
H
data
Start trigger input wait
−1
Reload
H
data
−1
Reload
H
data
0000 FFFF
H H
0000 FFFF
H H