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參數(shù)資料
| 型號(hào)： | M34518M2-XXXFP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP32 |
| 封裝： | 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32 |
| 文件頁(yè)數(shù)： | 131/160頁(yè) |
| 文件大?。?/td> | 1078K |
| 代理商： | M34518M2-XXXFP |
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Rev.3.01
2005.06.15
page 72 of 157
REJ03B0008-0301
4518 Group
Timer 4 count start timing and count time when operation starts
Count starts from the rising edge (2) after the first falling edge of
the count source, after Timer 4 operations start (1).
Time to first underflow (3) is different from time among next un-
derflow (4) by the timing to start the timer and count source
operations after count starts.
Fig. 64 Timer count start timing and count time when opera-
tion starts (Timer 4)
(1) Timer Start
Count Source
Timer Value
Timer Underflow Signal
3
2
1
032
103
(4)
(3)
(2)
14
Fig. 63 Timer count start timing and count time when opera-
tion starts (Prescaler, Timer 1, Timer 2 and Timer 3)
(1) Timer Start
Count Source
Timer value
Timer Underflow signal
3
2
1
032
103
(4)
(3)
(2)
2
Prescaler, Timer 1, Timer 2 and Timer 3 count start timing and
count time when operation starts
Count starts from the first rising edge of the count source (2) af-
ter Prescaler, Timer 1, Timer 2 and Timer 3 operations start (1).
Time to first underflow (3) is shorter (for up to 1 period of the
count source) than time among next underflow (4) by the timing
to start the timer and count source operations after count starts.
Watchdog timer
The watchdog timer function is valid after system is released
from reset. When not using the watchdog timer function, execute
the DWDT instruction and the WRST instruction continuously,
and clear the WEF flag to “0” to stop the watchdog timer func-
tion.
The watchdog timer function is valid after system is returned
from the RAM back-up state. When not using the watchdog timer
function, execute the DWDT instruction and the WRST instruc-
tion continuously every system is returned from the RAM
back-up state, and stop the watchdog timer function.
When the watchdog timer function and RAM back-up function are
used at the same time, execute the WRST instruction before
system enters into the RAM back-up state and initialize the flag
12
13
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M34518M4-XXXSP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP32 |
| M34518E8FP | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP32 |
| M34518M2-XXXSP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP32 |
| M34518E8SP | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDIP32 |
| M34518M4-XXXSP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34518M2-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34518M4-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34518M4-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34518M6-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34518M8-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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