HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 642

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 17 Realtime Clock (RTC)
17.4
RTC usage is shown below.
17.4.1
All the registers should be set after the power is turned on.
17.4.2
Figure 17.2 shows how to set the time when the clock is stopped.
Rev. 3.00 Jan. 18, 2008 Page 580 of 1458
REJ09B0033-0300
Operation
Initial Settings of Registers after Power-On
Setting Time
week, month, and year
Set seconds, minutes,
hour, day, day of the
reset divider circuit
Stop clock,
Start clock
Figure 17.2 Setting Time
Write 1 to RESET and 0 to
START in the RCR2 register
Order is irrelevant
Write 1 to START in the
RCR2 register