CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
Preliminary User’s Manual U16315EJ1V0UD
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Capture operation (free-running mode)
The capture register operation when capture trigger is input is shown below.
Figure 6-17. CR010 Capture Operation with Rising Edge Specified
Count clock
TM00
TI000
Rising edge detection
CR010
INTTM010
N – 3
N – 2
N – 1
N
N + 1
N
Figure 6-18. Timing of Pulse Width Measurement Operation with Free-Running Counter
(with Both Edges Specified)
t
0000H
0000H
FFFFH
0001H
D0
D0
TI010 pin input
CR000 capture value
INTTM010
INTTM000
OVF00
(D1 – D0)
×
t
(D3 – D2)
×
t
(10000H – D1 + D2)
×
t
(10000H – D1 + (D2 + 1))
×
t
D1
D2 + 1
D1
D2
D2
D3
D0 + 1
D1
D1 + 1
D2 + 1 D2 + 2
Count clock
TM00 count value
TI000 pin input
CR010 capture value