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參數(shù)資料
| 型號(hào)： | R5F2L36ACDFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 10 X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64 |
| 文件頁(yè)數(shù)： | 40/74頁(yè) |
| 文件大小： | 959K |
| 代理商： | R5F2L36ACDFP |
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46
2588F–AVR–06/2013
ATtiny261/461/861
1.
In the same operation, write a logical one to WDCE and WDE. Even though the WDE
always is set, the WDE must be written to one to start the timed sequence.
2.
Within the next four clock cycles, in the same operation, write the WDP bits as desired,
but with the WDCE bit cleared. The value written to the WDE bit is irrelevant.
8.3.2
Code Examples
The following code example shows one assembly and one C function for turning off the WDT.
The example assumes that interrupts are controlled (e.g., by disabling interrupts globally) so that
no interrupts will occur during execution of these functions.
Note:
Assembly Code Example
WDT_off:
wdr
; Clear WDRF in MCUSR
ldi
r16, (0<<WDRF)
out
MCUSR, r16
; Write logical one to WDCE and WDE
; Keep old prescaler setting to prevent unintentional Watchdog Reset
in
r16, WDTCSR
ori
r16, (1<<WDCE)|(1<<WDE)
out
WDTCSR, r16
; Turn off WDT
ldi
r16, (0<<WDE)
out
WDTCSR, r16
ret
C Code Example
void
WDT_off(void)
{
_WDR();
/* Clear WDRF in MCUSR */
MCUSR = 0x00
/* Write logical one to WDCE and WDE */
WDTCSR |= (1<<WDCE) | (1<<WDE);
/* Turn off WDT */
WDTCSR = 0x00;
}
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相關(guān)代理商/技術(shù)參數(shù) |
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| R5F2L36ACDFP#30 | 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 64LQFP |
| R5F2L36ACDFP#U1 | 制造商:Renesas Electronics Corporation 功能描述: |
| R5F2L36ACDFP#V2 | 制造商:Renesas Electronics Corporation 功能描述:R8C/L36C 96+4/10 64LQFP 10X10 制造商:Renesas Electronics Corporation 功能描述:R8C/L36C 96+4/10 64LQFP 10X10 -40 TO +85 - Trays 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT 96KB FLASH 64LQFP |
| R5F2L36ACNFP#30 | 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 64LQFP |
| R5F2L36ACNFP#V2 | 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 64LQFP |
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