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參數資料
| 型號： | M38C59GFHP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 6.25 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80 |
| 文件頁數： | 27/71頁 |
| 文件大?。?/td> | 939K |
| 代理商： | M38C59GFHP |
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Rev.2.00
Nov 23, 2005
page 33 of 75
REJ03B0098-0200
38C5 Group (One Time PROM version)
Timer Y
Timer Y is a 16-bit timer. The timer Y count source can be selected
by setting the timer Y mode register. When f(XCIN) is selected as the
count source, counting can be performed regardless of XCIN oscilla-
tion. However, when XCIN is stopped, the external pulse input from
XCIN pin is counted.
Four operating modes can be selected for timer Y by the timer Y
mode register. Also, the real time port can be controlled.
(1) Timer Mode
The timer Y count source can be selected by setting the timer Y mode
register.
(2) Period Measurement Mode
The interrupt request is generated at rising or falling edge of CNTR1
pin input signal. Simultaneously, the value in timer Y latch is reloaded
in timer Y and timer Y continues counting. Except for that, this mode
operates just as in the timer mode.
The timer value just before the reloading at rising or falling of CNTR1
pin input is retained until the timer Y is read once after the reload.
The rising or falling timing of CNTR1 pin input is found by CNTR1
interrupt. When using this mode, set the port sharing the CNTR1 pin
to input mode.
Fig. 28 Block diagram of Timer Y
(3) Event Counter Mode
The timer counts signals input through the CNTR1 pin.
Except for that, this mode operates just as in the timer mode.
When using this mode, set the port sharing the CNTR1 pin to input
mode.
(4) Pulse Width HL Continuously Measurement
Mode
The interrupt request is generated at both rising and falling edges of
CNTR1 pin input signal. Except for that, this mode operates just as in
the period measurement mode. When using this mode, set the port
sharing the CNTR1 pin to input mode.
Data bus
P51/RTP1/AN1
P50/RTP0/AN0
CNTR1
Timer Y
interrupt request
CNTR1
interrupt request
XcIN
φSOURCE
Timer Y operating mode bits
Frequency divider
2
Real time port 1
control bit
Real time port 2
control bit
Q D
Latch
Q D
Latch
P51 direction
register
P51 latch
P51 data for real time port
P50 direction
register
P50 latch
P50 data for real time port
“1”
Timer Y (low-order) latch (8)
“0”
CNTR1 active
edge switch bit
“10”
Falling edge detection
Period measurement
mode
Pulse width HL continuous
measurement mode
Timer Y operating
mode bits
Rising edge detection
Count source selection bit
“1”
Timer Y dividing frequency selection bit
Real time port 2 control bit
Timer Y mode register
write signal
Timer Y (low-order)(8)
“00”, “01”, “11”
“1”
“0”
“1”
“0”
“1”
“0”
“00”, “01”, “10”
“11”
“0”
Timer Y write control bit
Timer Y count stop bit
Timer Y (high-order) latch (8)
Timer Y (high-order)(8)
Real time port 1 control bit
Timer Y mode register
write signal
“1”
“0”
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相關代理商/技術參數 |
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| M38C59GFHP#U0 | 制造商:Renesas Electronics Corporation 功能描述:MCU 2/4V 60K PB-FREE - Trays |
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