27.7.6.3 Event Control in Clock/Calendar mode (CTRLA.MODE=2)

Name: EVCTRL
Offset: 0x04
Reset: 0x00000000
Property: PAC Write-Protection, Enable-Protected

Bit 3130292827262524 
        PERDEO 
Access R/W 
Reset 0 
Bit 2322212019181716 
        TAMPEVEI 
Access R/W 
Reset 0 
Bit 15141312111098 
 OVFEOTAMPEREO     ALARMEO0 
Access R/WR/WR/W 
Reset 000 
Bit 76543210 
 PEREO7PEREO6PEREO5PEREO4PEREO3PEREO2PEREO1PEREO0 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bit 24 – PERDEO Periodic Interval Daily Event Output Enable

ValueDescription
0 Periodic Daily event is disabled and will not be generated.
1

Periodic Daily event is enabled and will be generated.

The event occurs at the last second of each day depending on the CTRLA.CLKREP bit:
  • If CLKREP = 0, the event will occur at 23:59:59
  • If CLKREP = 1, the event will occur at 11:59:59, PM = 1

Bit 16 – TAMPEVEI Tamper Event Input Enable

ValueDescription
0 Tamper event input is disabled, and incoming events will be ignored.
1 Tamper event input is enabled, and all incoming events will capture the CLOCK value.

Bit 15 – OVFEO Overflow Event Output Enable

ValueDescription
0 Overflow event is disabled and will not be generated.
1 Overflow event is enabled and will be generated for every overflow.

Bit 14 – TAMPEREO Tamper Event Output Enable

ValueDescription
0 Tamper event output is disabled, and will not be generated
1 Tamper event output is enabled, and will be generated for every tamper input.

Bit 8 – ALARMEO0 Alarm 0 Event Output Enable

ValueDescription
0 Alarm 0 event is disabled and will not be generated.
1 Alarm 0 event is enabled and will be generated for every compare match.

Bits 0, 1, 2, 3, 4, 5, 6, 7 – PEREOn Periodic Interval n Event Output Enable [n = 7..0]

ValueDescription
0 Periodic Interval n event is disabled and will not be generated.
1 Periodic Interval n event is enabled and will be generated.