Fujitsu FR81S User Manual
CHAPTER 20: RELOAD TIMER
6. Application Note
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : RELOAD TIMER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
FUJITSU SEMICONDUCTOR CONFIDENTIAL
59
[Timer activation] Follow the steps below to activate the timer.
⋅ Input an activation trigger (a write of "1" to the TRG bit or an input of effective external edge from TIN
pin)
⋅ Input an effective level when you use TIN pin input as the gate input
Figure 6-3 Example of Operation (OUTL=0)
TOUT
(TMRLRA + 1)
(TMRLRA + 1)
Counter value
TMPLRA
0x0000
TMRLRA
0x0000
TMRLRA
Activation trigger
Underflow
Underflow
Downcount
MB91520 Series
MN705-00010-1v0-E
786