參數(shù)資料
型號: KSZ8895RQ
廠商: Micrel Inc
文件頁數(shù): 119/119頁
文件大?。?/td> 0K
描述: IC 10/100-T 5 PORT SW 128PQFP
標(biāo)準(zhǔn)包裝: 66
系列: *
2011-2012 Microchip Technology Inc.
Preliminary
DS41579C-page 99
PIC16(L)F1782/3
11.0 WATCHDOG TIMER (WDT)
The Watchdog Timer is a system timer that generates
a Reset if the firmware does not issue a CLRWDT
instruction within the time-out period. The Watchdog
Timer is typically used to recover the system from
unexpected events.
The WDT has the following features:
Independent clock source
Multiple operating modes
- WDT is always on
- WDT is off when in Sleep
- WDT is controlled by software
- WDT is always off
Configurable time-out period is from 1 ms to 256
seconds (nominal)
Multiple Reset conditions
Operation during Sleep
FIGURE 11-1:
WATCHDOG TIMER BLOCK DIAGRAM
LFINTOSC
23-bit Programmable
Prescaler WDT
WDT Time-out
WDTPS<4:0>
SWDTEN
Sleep
WDTE<1:0> = 11
WDTE<1:0> = 01
WDTE<1:0> = 10
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KSZ8895RQXCA 功能描述:Ethernet Switch 10/100 Base-T/TX PHY RMII Interface 128-PQFP (14x20) 制造商:microchip technology 系列:- 包裝:托盤 零件狀態(tài):有效 協(xié)議:以太網(wǎng) 功能:開關(guān) 接口:RMII 標(biāo)準(zhǔn):10/100 Base-T/TX PHY 電壓 - 電源:1.8V,2.5V,3.3V 電流 - 電源:- 工作溫度:0°C ~ 70°C 封裝/外殼:128-BFQFP 供應(yīng)商器件封裝:128-PQFP(14x20) 標(biāo)準(zhǔn)包裝:66