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參數資料
型號: W742S81A
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4-BIT, FLASH, 3.58 MHz, MICROCONTROLLER, PQFP100
文件頁數: 13/47頁
文件大小: 242K
代理商: W742S81A
W742S81A
Publication Release Date: March 2003
- 13 -
Revision A1
6.11 WatchDog Timer (WDT) and WatchDog Timer Register(WDTR)
The watchdog timer (WDT) is organized as a 4-bit up counter designed to prevent the program from
unknown errors. When the corresponding option code bit of the WDT set to 1, the WDT is enabled, and if
the WDT overflows, the chip will be reset. At initial reset, the input clock of the WDT is F
OSC
/2048. The
input clock of the WDT can be switched to F
OSC
/16384 (or F
OSC
/2048) by setting WDTR.3 to 1. The
contents of the WDT can be reset by the instruction CLR WDT. In normal operation, the application
program must reset WDT before it overflows. A WDT overflow indicates that operation is not under
control and the chip will be reset. The WDT overflow period is 1 S when the sub-system clock (Fs) is 32
KHz and WDT clock input is Fs/2048. When the corresponding option code bit of the WDT set to 0, the
WDT function is disabled. The organization of the Divider0 and watchdog timer is shown in Figure 6-5.
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相關代理商/技術參數
參數描述
W742S82A 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT TELEPHONE CONTROLLER
W7-48D12 制造商:INTRONICS 制造商全稱:INTRONICS 功能描述:DC/DC MODULES
W7-48D15 制造商:INTRONICS 制造商全稱:INTRONICS 功能描述:DC/DC MODULES
W7-48D5 制造商:INTRONICS 制造商全稱:INTRONICS 功能描述:DC/DC MODULES
W7-48S12 制造商:INTRONICS 制造商全稱:INTRONICS 功能描述:DC/DC MODULES