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CHAPTER 8 16-BIT TIMER/EVENT COUNTER
(2) Pulse width measurement by means of restart
When input of a valid edge to the INTP0/P00/TI0 pin is detected, the count value of the 16-bit timer register (TM0)
is taken into the 16-bit capture register (CR01), and then the pulse width of the signal input to the INTP0/P00/
TI0 pin is measured by clearing TM0 and restarting the count.
The edge specification can be selected from three types, rising, falling, and both edges by bit 2 and bit 3 (ES10
and ES11) of the external interrupt mode register (INTM0).
In a valid edge detection, the sampling is performed by a cycle selected by the sampling clock select register
(SCS), and a capture operation is not performed before detecting valid levels twice allowing short pulse width
noise to be eliminated.
Figure 8-16.
Timing of Pulse Width Measurement Operation by Means of Restart
(with Both Edges Specified)
Count Clock
TM0 Count Value
0000 0001
D0
0001
D1
0001
TI0 Pin Input
CR01 Captured Value
D0
D1
INTP0
(D1 + 1)
×
t
t
0000
0000
(D0 + 1)
×
t
Summary of Contents for 78014Y Series
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Page 62: ...www DataSheet4U com CHAPTER 2 OUTLINE PD78014Y Subseries 62 MEMO...
Page 78: ...www DataSheet4U com CHAPTER 3 PIN FUNCTION PD78014 Subseries 78 MEMO...
Page 94: ...www DataSheet4U com CHAPTER 4 PIN FUNCTION PD78014Y Subseries 94 MEMO...
Page 170: ...www DataSheet4U com CHAPTER 7 CLOCK GENERATOR 170 MEMO...
Page 222: ...www DataSheet4U com CHAPTER 9 8 BIT TIMER EVENT COUNTER 222 MEMO...
Page 230: ...www DataSheet4U com CHAPTER 10 WATCH TIMER 230 MEMO...
Page 262: ...www DataSheet4U com CHAPTER 14 A D CONVERTER 262 MEMO...
Page 318: ...www DataSheet4U com CHAPTER 15 SERIAL INTERFACE CHANNEL 0 PD78014 Subseries 318 MEMO...
Page 408: ...www DataSheet4U com CHAPTER 16 SERIAL INTERFACE CHANNEL 0 PD78014Y Subseries 408 MEMO...
Page 446: ...www DataSheet4U com CHAPTER 17 SERIAL INTERFACE CHANNEL 1 446 MEMO...
Page 472: ...www DataSheet4U com CHAPTER 18 INTERRUPT FUNCTIONS AND TEST FUNCTION 472 MEMO...
Page 502: ...www DataSheet4U com CHAPTER 22 PD78P014 78P014Y 502 MEMO...
Page 520: ...www DataSheet4U com CHAPTER 23 INSTRUCTION SET 520 MEMO...