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Chapter 38 Reload Timer
5.Operation
5.2 Internal Clock/One-shot Mode
In one-shot mode, a one-shot pulse is output.
(1) Set reload value to reload register
(2) Enable reload timer count operation
(3) TOT pin output
(4) Generate reload trigger (activation): soft trigger or external event trigger
(5) Load reload value
(6) Square wave output (during count, “H” output/OUTL=“0”)
(7) Counter count down (internal clock synchronous)
(8) Generate counter underflow
(9) Return TOT pin output level
(10) Count stop, wait for next activation trigger
(See “8. Caution (Page No.794)”.)
FFFF
-1
0000
FFFF -1
T = CLKP
OUTL=0
OUTL=1
TMRLR
(1)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(2)
(5)
(10)
Count clock
Activation trigger
(Soft or external event)
Underflow
Output only once
Reload
data
Reload
data
Data load
When RELD=0
[Reload register setting value + 1]
Counter
TOT output waveform
CNTE bit
Count
Count start
Reload data