Datasheet

Section 10 Realtime Clock (RTC)
Rev. 2.00 Sep. 23, 2005 Page 142 of 472
REJ09B0160-0200
PSS
32-kHz
oscillator
circuit
RTCCSR
RSECDR
RMINDR
RWKDR
Clock count
control circuit
Interrupt
control circuit
Interrupt
RTCCR1
RHRDR
RTCCR2
Internal data bus
1/4
TMOW
[Legend]
RTCCSR:
RSECDR:
RMINDR:
RHRDR:
RWKDR:
RTCCR1:
RTCCR2:
PSS:
Clock source select register
Second date register/free running counter data register
Minute date register
Hour date register
Day-of-week date register
RTC control register 1
RTC control register 2
Prescaler S
Figure 10.1 Block Diagram of RTC