HD64F38602R Datasheet, PDF (218/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 11 Realtime Clock (RTC)
32-kHz
oscillator
circuit
PSS
1/4
TMOW
Clock count
control circuit
RTCCSR
RSECDR
RMINDR
RHRDR
RWKDR
RTCCR1
RTCCR2
RTCFLG
Interrupt
control circuit
[Legend]
RTCCSR:
RSECDR:
RMINDR:
RHRDR:
RWKDR:
RTCCR1:
RTCCR2:
RTCFLG:
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
RTC interrupt flag register
Prescaler S
Figure 11.1 Block Diagram of RTC
Interrupt
11.2 Input/Output Pin
Table 11.1 shows the pin configuration of the RTC.
Table 11.1 Pin Configuration
Name
Clock output
Abbreviation I/O
TMOW
Output
Function
RTC divided clock output
Rev. 3.00 May 15, 2007 Page 186 of 516
REJ09B0152-0300