K60P100M100SF2RM Datasheet, PDF (507/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

22.1.2.2 Wait Mode
Chapter 22 External Watchdog Monitor (EWM)
The EWM module treats the stop and wait modes as the same. EWM functionality
remains the same in both of these modes.
22.1.2.3 Debug Mode
Entry to debug mode has no effect on the EWM.
• If the EWM is enabled prior to entry of debug mode, it remains enabled.
• If the EWM is disabled prior to entry of debug mode, it remains disabled.
22.1.3 Block Diagram
This figure shows the EWM block diagram.
Low Power
Clock
Clock Gating
Cell
Enable
EWM refresh
EWM_out EWM enable
Reset to Counter
Counter Overflow
OR
CPU Reset
EWM_out
Counter >Compare High
EWM Out
Logic
AND
Counter < Compare Low
((EWM_in ^ assert_in) ||
~EWM_in_enable) ¹
1 _{Compare High > Counter > Compare Low}
Figure 22-1. EWM Block Diagram
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.
507