NEC PD78214 User Manual
Page 185
156
µ
PD78214 Sub-Series
Fig. 7-62 Timing of Pulse Width Measurement (When CR11 Is Used As a Capture Register)
Remark D
n
: TM1 count value (n = 0, 1, 2, ...)
X = 16, 32, 64, 128, 256, 512
OVF1
Capture/compare
register (CR11)
TM1
count value
0H
Captured
Captured
(D1 – D0)
× X/f
CLK
Captured
Count starts
D0
D1
D2
D3
(D3 – D2)
× X/f
CLK
(100H – D1
+ D2)
× X/f
CLK
D3
FFH
FFH
INTP0
external input signal
INTP0
interrupt request
Cleared by software
Captured
↑
D1
D0
D2
CE1
←1