(With Both Edges Specified) - NEC 78K0 User Manual

Figure 7-26. Timing of Pulse Width Measurement Operation with Free-Running Counter
t
Count clock
0000H
TM0n count value
TI00n pin input
CR01n capture value
INTTM01n
TI01n pin input
CR00n capture value
INTTM00n
OVF0n
Note Clear OVF0n by software.
µ
Remark n = 0: PD780143, 780144
µ
n = 0, 1: PD780146, 780148, 78F0148
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 AND 01

(with Both Edges Specified)

0001H D0 D0 + 1
D0
(D1 − D0) × t
*
User's Manual U15947EJ2V0UD
D1 D1 + 1 FFFFH 0000H
D1
D1
(10000H − D1 + D2) × t
(10000H − D1 + (D2 + 1)) × t
D2 D2 + 1 D2 + 2 D3
D2
D2 + 1
Note
(D3 − D2) × t
195