NEC uPD78P078 - Manual (Page 207)

207
CHAPTER 8 16-BIT TIMER/EVENT COUNTER
Figure 8-21. Timing of Pulse Width Measurement Operation with
Free-Running Counter (with Both Edges Specified)
Count Clock
TM0 Count Value
TI00 Pin Input
CR01 Captured Value
INTP0
TI01 Pin Input
t
CR00 Captured Value
INTP1
OVF0
(D1 – D0) x t (10000H – D1 + D2) x t
(10000H – D1 + (D2 + 1)) x t
(D3 – D2) x t
0000 0001 D0 D1 0000 D3 D2 FFFF
D0 D1 D3 D2
D1