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| 型號(hào)： | M38037M6H-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64 |
| 文件頁(yè)數(shù)： | 15/119頁(yè) |
| 文件大小： | 1818K |
| 代理商： | M38037M6H-XXXFP |
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Rev.3.11
Apr 5, 2006
Page 109 of 113
REJ03B0017-0311
3803 Group (Spec.H)
Notes on 8-bit Timer (timer 1, 2, X, Y)
If a value n (between 0 and 255) is written to a timer latch, the
frequency division ratio is 1/(n+1).
When switching the count source by the timer 12, X and Y
count source selection bits, the value of timer count is altered
in unconsiderable amount owing to generating of thin pulses in
the count input signals.
Therefore, select the timer count source before set the value to
the prescaler and the timer.
Set the double-function port of the CNTR0/CNTR1 pin and
port P54/P55 to output in the pulse output mode.
Set the double-function port of CNTR0/CNTR1 pin and port
P54/P55 to input in the event counter mode and the pulse width
measurement mode.
Notes on 16-bit Timer (timer Z)
1. Pulse output mode
Set the double-function port of the CNTR2 pin and port P47 to
output.
2. Pulse period measurement mode
Set the double-function port of the CNTR2 pin and port P47 to
input.
A read-out of timer value is impossible in this mode. The timer
can be written to only during timer stop (no measurement of
pulse period).
Since the timer latch in this mode is specialized for the read-
out of measured values, do not perform any write operation
during measurement.
“FFFF16” is set to the timer when the timer underflows or
when the valid edge of measurement start/completion is
detected.
Consequently, the timer value at start of pulse period
measurement depends on the timer value just before
measurement start.
3. Pulse width measurement mode
Set the double-function port of the CNTR2 pin and port P47 to
input.
A read-out of timer value is impossible in this mode. The timer
can be written to only during timer stop (no measurement of
pulse period).
Since the timer latch in this mode is specialized for the read-
out of measured values, do not perform any write operation
during measurement.
“FFFF16” is set to the timer when the timer underflows or
when the valid edge of measurement start/completion is
detected.
Consequently, the timer value at start of pulse width
measurement depends on the timer value just before
measurement start.
4. Programmable waveform generating mode
Set the double-function port of the CNTR2 pin and port P47 to
output.
5. Programmable one-shot generating mode
Set the double-function port of CNTR2 pin and port P47 to
output, and of INT1 pin and port P42 to input in this mode.
This mode cannot be used in low-speed mode.
If the value of the CNTR2 active edge switch bit is changed
during one-shot generating enabled or generating one-shot
pulse, then the output level from CNTR2 pin changes.
6. All modes
Timer Z write control
Which write control can be selected by the timer Z write control
bit (bit 3) of the timer Z mode register (address 002A16), writing
data to both the latch and the timer at the same time or writing
data only to the latch.
When the operation “writing data only to the latch” is selected,
the value is set to the timer latch by writing data to the address of
timer Z and the timer is updated at next underflow. After reset
release, the operation “writing data to both the latch and the timer
at the same time” is selected, and the value is set to both the latch
and the timer at the same time by writing data to the address of
timer Z.
In the case of writing data only to the latch, if writing data to the
latch and an underflow are performed almost at the same time,
the timer value may become undefined.
Timer Z read control
A read-out of timer value is impossible in pulse period
measurement mode and pulse width measurement mode. In the
other modes, a read-out of timer value is possible regardless of
count operating or stopped.
However, a read-out of timer latch value is impossible.
Switch of interrupt active edge of CNTR2 and INT1
Each interrupt active edge depends on setting of the CNTR2
active edge switch bit and the INT1 active edge selection bit.
Switch of count source
When switching the count source by the timer Z count source
se lec tion bi ts, t h e va lue of t imer count is al tered in
inconsiderable amount owing to generating of thin pulses on the
count input signals.
Therefore, select the timer count source before setting the value
to the prescaler and the timer.
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相關(guān)代理商/技術(shù)參數(shù) |
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| M38037M8108F | 制造商:Panasonic Industrial Company 功能描述:IC |
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| M38039FFHFP#U0 | 功能描述:IC 740 MCU FLASH 60K 64QFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 產(chǎn)品培訓(xùn)模塊:CAN Basics Part-1 CAN Basics Part-2 Electromagnetic Noise Reduction Techniques Part 1 M16C Product Overview Part 1 M16C Product Overview Part 2 標(biāo)準(zhǔn)包裝:1 系列:M16C™ M32C/80/87 核心處理器:M32C/80 芯體尺寸:16/32-位 速度:32MHz 連通性:EBI/EMI，I²C，IEBus，IrDA，SIO，UART/USART 外圍設(shè)備:DMA，POR，PWM，WDT 輸入/輸出數(shù):121 程序存儲(chǔ)器容量:384KB（384K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:24K x 8 電壓 - 電源 (Vcc/Vdd):3 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 34x10b，D/A 2x8b 振蕩器型:內(nèi)部 工作溫度:-20°C ~ 85°C 封裝/外殼:144-LQFP 包裝:托盤 產(chǎn)品目錄頁(yè)面:749 (CN2011-ZH PDF) 配用:R0K330879S001BE-ND - KIT DEV RSK M32C/87 |
| M38039FFHHP | 功能描述:MCU 3/5V 56K+4K 64-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB（20K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
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