90
PBM
←
0
OC1
←
0
EWE
←
1*
Protect bits
←
H'78
START
END
Note: EWE does not need to be set when the WDT is disabled.
Figure 8.14 Protection Flowchart
Note that the EWE bit in TCSR must be set to 1 before the
PBM
bit in EPR is cleared to 0.
However, when the WDT is disabled, the EWE does not need to be set.