UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 213
UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
(759 pages)
- Current page: 213 of 759
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(3) Pulse width measurement
(4) Software triggered one-shot pulse output
* The minimum pulse width that can be measured differs depending on the selected value of f
Detects the pulse width of the signal input to the external interrupt request input pin (INTP3).
This is a one-shot pulse output function in which the pulse output level is activated by software and inactivated by hardware
(an interrupt request signal). Control can be performed for the timer output pins (TO0, TO1) independently.
The minimum pulse width that can be measured is the value of 4/f
Caution The software triggered one-shot pulse output function is different in nature from the one-shot timer
function of timer/counter 2.
Table 8-3 Timer/Counter 0 Pulse Width Measurement Range
(0.32 s)
(0.64 s)
(1.28 s)
(2.56 s)
(5.12 s)
(10.2 s)
(20.5 s)
(41.0 s)
(81.9 s)
1024/f
2048/f
128/f
256/f
512/f
Measurable Pulse Width*
16/f
32/f
64/f
8/f
CHAPTER 8 TIMER/COUNTER 0
XX
XX
XX
XX
XX
XX
XX
XX
XX
–
–
–
–
–
–
–
– 2
– 2
2
2
2
2
2
2
16
16
2
(21.0 ms)
(41.9 ms)
(83.9 ms)
16
16
16
(168 ms)
(336 ms)
(671 ms)
16
16
16
(1.34 s)
(2.68 s)
(5.37 s)
16
1024/f
2048/f
128/f
256/f
512/f
16/f
32/f
64/f
8/f
( ): When f
XX
XX
XX
XX
XX
XX
XX
XX
XX
CLK
or the value in the above table, whichever is greater.
Resolution
XX
(0.32 s)
(0.64 s)
(1.28 s)
(2.56 s)
(5.12 s)
(10.2 s)
(20.5 s)
(41.0 s)
(81.9 s)
1024/f
2048/f
128/f
256/f
512/f
16/f
32/f
64/f
8/f
= 25 MHz
XX
XX
XX
XX
XX
XX
XX
XX
XX
CLK
.
173
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