M38203M4 Datasheet, PDF (129/344 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPLICATION
2.3 Timer X and timer Y
Count period
Count period T(s) = 1 ÷ count source frequency ! (the Y counter initial value + 1)
Timer mode operation example
•UF : Underflow
•RL : Reload
•n : The Y counter initial value
Timer Y stop
control bit
Count
source
Writing “1” Writing “0”
RL
RL
RL
RL Count stop
n16
Count restart
UF
UF
UF
UF
000016
T
Time
Timer Y interrupt
request bit
1
1
1
1
Timer Y interrupt
enable bit
1 : •Clearing by writing “0” to the timer Y interrupt request bit.
•Clearing by accepting the timer Y interrupt request when the timer Y interrupt enable
bit is “1.”
Fig. 2.3.6 Timer mode operation example
3820 GROUP USER’S MANUAL
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