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MC33889DDWR2 Datasheet(PDF) 49 Page - Freescale Semiconductor, Inc |
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MC33889DDWR2 Datasheet(HTML) 49 Page - Freescale Semiconductor, Inc |
49 / 60 page Analog Integrated Circuit Device Data Freescale Semiconductor 49 33889 FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS Table 26. Watch dog Table 27. jWatchdog operation (window and timeout) TIM2 REGISTER The purpose of TIM2 register is to select an appropriate timing for sensing the wake-up circuitry or cyclically supplying devices by switching on or off HS1 Table 28. TIM2 Register WDW WDT1 WDT0 Watchdog timing [ms] 0 0 0 10 no window watchdog 0 0 1 50 0 1 0 100 0 1 1 350 1 0 0 10 window watchdog enabled (window lenght is half the watchdog timing) 1 0 1 50 1 1 0 100 1 1 1 350 window closed window open WD timing * 50% WD timing * 50% Watchdog period for watchdog clear no watchdog clear window open Watchdog period for watchdog clear (WD timing selected by TIM 1 bit WDW=1) (WD timing selected by TIM 1, bit WDW=0) Timeout watchdog Window watchdog TIM2 D3 D2 D1 D0 $101b W 1 CSP2 CSP1 CSP0 R Reset 0 0 0 Reset condition POR, RESET POR, RESET POR, RESET |
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