参数资料
型号: MT80C51-12R
厂商: TEMIC SEMICONDUCTORS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP44
文件页数: 95/170页
文件大小: 4133K
代理商: MT80C51-12R
30
ATtiny4/5/9/10 [DATASHEET]
8127F–AVR–02/2013
Figure 8-5.
Watchdog Reset During Operation
8.3
Watchdog Timer
The Watchdog Timer is clocked from an on-chip oscillator, which runs at 128 kHz. See Figure 8-6. By controlling
the Watchdog Timer prescaler, the Watchdog Reset interval can be adjusted as shown in Table 8-2 on page 32.
The WDR – Watchdog Reset – instruction resets the Watchdog Timer. The Watchdog Timer is also reset when it is
disabled and when a device reset occurs. Ten different clock cycle periods can be selected to determine the reset
period. If the reset period expires without another Watchdog Reset, the ATtiny4/5/9/10 resets and executes from
the Reset Vector. For timing details on the Watchdog Reset, refer to Table 8-3 on page 33.
Figure 8-6.
Watchdog Timer
The Wathdog Timer can also be configured to generate an interrupt instead of a reset. This can be very helpful
when using the Watchdog to wake-up from Power-down.
To prevent unintentional disabling of the Watchdog or unintentional change of time-out period, two different safety
levels are selected by the fuse WDTON as shown in Table 8-1 on page 31. See “Procedure for Changing the
CK
CC
OSC/2K
OSC/4K
OSC/8K
OSC/16K
OSC/32K
OSC/64K
OSC/128K
OSC/256K
OSC/512K
OSC/1024K
MCU RESET
WATCHDOG
PRESCALER
128 kHz
OSCILLATOR
WATCHDOG
RESET
WDP0
WDP1
WDP2
WDP3
WDE
MUX
相关PDF资料
PDF描述
MF280C51C-25D 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP44
MV80C51-30D 8-BIT, MROM, 30 MHz, MICROCONTROLLER, PQFP44
MF180C31-36R 8-BIT, 36 MHz, MICROCONTROLLER, PQFP44
MF280C51-20D 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44
MF180C51-25D 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP44
相关代理商/技术参数
参数描述
MT80C51BH 制造商:ROCHESTER 制造商全称:ROCHESTER 功能描述:CMOS SINGLE - CHIP 8-BIT MICROCOMPUTER 64K program Memory Space
MT80C51FB 制造商:Rochester Electronics LLC 功能描述:- Bulk
MT80C51FB/B 制造商:Intel 功能描述:
MT80GB 制造商:Datak Corporation 功能描述:
MT80JSF1G72NDY-1G1F1A2 制造商:Micron Technology Inc 功能描述:8GB 1GX72 DDR3 SDRAM MODULE PBF DIMM 1.5V REGISTERED - Trays