21.7.7 Event Control

Table 21-8. Register Bit Attribute Legend
Symbol Description Symbol Description Symbol Description
R Readable bit HC Cleared by Hardware (Grey cell) Unimplemented
W Writable bit HS Set by Hardware X Bit is unknown at Reset
K Write to clear S Software settable bit
Name: EVCTRL
Offset: 0x18
Reset: 0x00000000
Property: PAC Write-Protection

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
          
Access  
Reset  
Bit 76543210 
        CFDEO 
Access R/W 
Reset 0 

Bit 0 – CFDEO Clock Failure Detector Event Out Enable

This bit controls whether the Clock Failure Detector event output is enabled and an event will be generated when the CFD detects a clock failure.
Note: To prevent false event generation, the CFDEO bit must be set or cleared only when the XOSC32K is Disabled, (i.e. XOSC32K.ENABLE=0).
ValueDescription
0 Clock Failure Detector Event output is disabled, no event will be generated.
1 Clock Failure Detector Event output is enabled, an event will be generated.