HD6417706 Datasheet, PDF (376/709 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

13.3.5 Day of the Week Counter (RWKCNT)
The day of the week counter (RWKCNT) is an 8-bit read/write register used for setting/counting
in the BCD-coded day of week section of the RTC. The count operation is performed by a carry
for each day of the date counter.
The range for day of the week can be set is 0 to 6 (decimal). Errant operation will result if any
other value is set. Carry out write processing after halting the count operation with the START bit
in RCR2.
RWKCNT is not initialized by a power-on reset or manual reset, or in standby mode.
Bit
7 to 3
2 to 0
Bit Name Initial Value

All 0


R/W Description
R Always read as 0.
R/W Counter for the day of week in the BCD-code.
The range can be set from 0 to 6 (decimal).
Code Day of Week
0:
Sunday
1:
Monday
2:
Tuesday
3:
Wednesday
4:
Thursday
5:
Friday
6:
Saturday
Rev. 4.00, 03/04, page 330 of 660