UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 274
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UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
(759 pages)
- Current page: 274 of 759
- Download datasheet (3Mb)
(2) Pulse width measurement
234
* The minimum pulse width that can be measured changes depending on the sampling clock selected by the sampling clock
Detects the pulse width of the signal input to the external interrupt request input pin INTP0.
select register (SCS0). The minimum pulse width that can be measured is the value in the table below or above, whichever
is greater.
Table 9-2 Timer/Counter 1 Pulse Width Measurement Range
f
f
f
f
CLK
XX
XX
XX
/64
/128
/256
Sampling Clock
f
f
f
f
CLK
CLK
CLK
CLK
(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)
Measurable Pulse Width*
1024/f
2048/f
= f
= f
= f
= f
128/f
256/f
512/f
16/f
32/f
64/f
8/f
xx
xx
xx
xx
CHAPTER 9 TIMER/COUNTER 1
XX
/2
/4
/8
/16
XX
XX
XX
XX
XX
XX
XX
XX
( ): When f
–
–
–
–
– 2
– 2
– 2
– 2
– 2
2
2
2
16
16
2
16
16
16
(21.0 ms)
(41.9 ms)
(83.9 ms)
(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
4/f
4/f
4/f
4/f
256/f
512/f
1024/f
16/f
32/f
64/f
8/f
CLK
CLK
CLK
CLK
XX
Minimum Pulse Width
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
= 25 MHz
= 8/f
= 16/f
= 32/f
= 64/f
XX
(10.2 s)
(20.5 s)
(41.0 s)
XX
XX
XX
XX
(0.32 s)
(0.64 s)
(1.28 s)
(2.56 s)
Resolution
(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
XX
XX
XX
XX
XX
XX
XX
XX
XX
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