Datasheet

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21.3 Block Diagram
Figure 21-1. RTC Block Diagram (Mode 0 — 32-Bit Counter)
OVF
MATCHCLR
CMPn
OSC32KCTRL
CLK_RTC_OSC
PRESCALER
CLK_RTC_CNT
Periodic Events
COUNT
COMPn
=
0x00000000
Figure 21-2. RTC Block Diagram (Mode 1 — 16-Bit Counter)
CLK_RTC_OSC
CLK_RTC_CNT
OSC32KCTRL
PRESCALER
COMPn
PER
COUNT
0x0000
Periodic Events
=
=
CMPn
OVF
Figure 21-3. RTC Block Diagram (Mode 2 — Clock/Calendar)
CLK_RTC_CNT
CLK_RTC_OSC
OSC32KCTRL
PRESCALER
Periodic Events
MASKn
CLOCK
ALARMn
=
0x00000000
OVF
MATCHCLR
ALARMn
Related Links
21.6.2.3 32-Bit Counter (Mode 0)
21.6.2.4 16-Bit Counter (Mode 1)
21.6.2.5 Clock/Calendar (Mode 2)
21.6.8.5 Tamper Detection
SAM D5x/E5x Family Data Sheet
RTC – Real-Time Counter
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 284