Information

Section Number Title Page
22.4.3 EWM Counter..............................................................................................................................................496
22.4.4 EWM Compare Registers............................................................................................................................496
22.4.5 EWM Refresh Mechanism...........................................................................................................................497
Chapter 23
Watchdog Timer (WDOG)
23.1 Introduction...................................................................................................................................................................499
23.2 Features.........................................................................................................................................................................499
23.3 Functional Overview.....................................................................................................................................................501
23.3.1 Unlocking and Updating the Watchdog.......................................................................................................502
23.3.2 The Watchdog Configuration Time (WCT).................................................................................................503
23.3.3 Refreshing the Watchdog.............................................................................................................................504
23.3.4 Windowed Mode of Operation....................................................................................................................504
23.3.5 Watchdog Disabled Mode of Operation......................................................................................................504
23.3.6 Low Power Modes of Operation..................................................................................................................505
23.3.7 Debug Modes of Operation..........................................................................................................................505
23.4 Testing the Watchdog...................................................................................................................................................506
23.4.1 Quick Test....................................................................................................................................................506
23.4.2 Byte Test......................................................................................................................................................506
23.5 Backup Reset Generator...............................................................................................................................................508
23.6 Generated Resets and Interrupts...................................................................................................................................508
23.7 Memory Map and Register Definition..........................................................................................................................509
23.7.1 Watchdog Status and Control Register High (WDOG_STCTRLH)...........................................................510
23.7.2 Watchdog Status and Control Register Low (WDOG_STCTRLL)............................................................512
23.7.3 Watchdog Time-out Value Register High (WDOG_TOVALH).................................................................512
23.7.4 Watchdog Time-out Value Register Low (WDOG_TOVALL)..................................................................513
23.7.5 Watchdog Window Register High (WDOG_WINH)..................................................................................513
23.7.6 Watchdog Window Register Low (WDOG_WINL)...................................................................................514
23.7.7 Watchdog Refresh Register (WDOG_REFRESH)......................................................................................514
23.7.8 Watchdog Unlock Register (WDOG_UNLOCK).......................................................................................514
K10 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc. 19