NEC 78K0/KD1 Series User Manual page 146

• • • • 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
Figure 6-18. Timing of Pulse Width Measurement Operation with Free-Running Counter
(with Both Edges Specified)
t
Count clock
0000H
TM00 count value
TI000 pin input
CR010 capture value
INTTM010
TI010 pin input
CR000 capture value
INTTM000
OVF00
146
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
N – 3 N – 2
0001H D0 D0 + 1
D0
(D1 – D0) × t
Preliminary User's Manual U16315EJ1V0UD
N – 1 N
N
D1 D1 + 1 FFFFH 0000H
D1
D1
(10000H – D1 + D2) × t
(10000H – D1 + (D2 + 1)) × t
N + 1
D2 D2 + 1 D2 + 2
D2
D2 + 1
(D3 – D2) × t
D3