HD6417705F133V Datasheet, PDF (417/741 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

15.4 Operation
15.4.1 Initial Settings of Registers after Power-On
All the registers should be set after the power is turned on.
15.4.2 Setting Time
Figure 15.2 shows how to set the time when the clock is stopped.
Stop clock,
Write 1 to RESET and 0 to
reset divider circuit START in the RCR2 register
Set seconds, minutes,
hour, day, day of the Order is irrelevant
week, month and year
Start clock
Write 1 to START in the
RCR2 register
Figure 15.2 Setting Time
Rev. 2.00, 09/03, page 369 of 690