UPD78F9234MC-5A4-A Datasheet, PDF (108/419 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
Figure 6-19. Configuration Diagram for Pulse Width Measurement by Free-Running Counter
fXP
fXP/2²
fXP/2⁶
16-bit timer/counter 00
(TM00)
TI000/INTP0/P30
16-bit timer capture/compare
register 010 (CR010)
Internal bus
INTTM010
Figure 6-20. Timing of Pulse Width Measurement Operation by Free-Running Counter
and One Capture Register (with Both Edges Specified)
t
Count clock
TM00 count value
TI000 pin input
CR010 capture value
INTTM010
0000H 0001H
D0 D0 + 1
D0
D1 D1 + 1
FFFFH 0000H
D1
D2
D2
D3
D3
(D1 − D0) × t
(D2 − D1) × t^Note
(D3 − D2) × t
Note The carry flag is set to 1. Ignore this setting.
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User’s Manual U17446EJ5V0UD