參數(shù)資料
型號(hào)： R5F2L3AACDFP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁數(shù)： 40/74頁
文件大?。?/td> 959K
代理商： R5F2L3AACDFP
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)
參數(shù)描述
R5F2L3AACDFP#U1 制造商:Renesas Electronics Corporation 功能描述:
R5F2L3AACDFP#V0 制造商:Renesas Electronics Corporation 功能描述:R8C/L3AC 96K+4K/10K 100LQFP14X14 -40-+85 - Trays
R5F2L3AACNFA#U0 制造商:Renesas Electronics Corporation 功能描述:R8CL3AC 96+4KB 1.8/5.5V -20 TO 85C 100QFP - Trays 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 100LQFP
R5F2L3AACNFP#30 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 100LQFP 制造商:Renesas Electronics Corporation 功能描述:R8C Series 16 bit 10 kB RAM 96 kB Flash Single Chip Microcontroller SMT-LQFP-100
R5F2L3AACNFP#V0 功能描述:MCU 1KB FLASH 96K ROM 100-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/Lx/3AC 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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