SH7205 Datasheet, PDF (739/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 15 Realtime Clock (RTC)
15.3.5 Day of Week Counter (RWKCNT)
RWKCNT is used for setting/counting day of week section. The count operation is performed by a
carry for each day of the date counter.
The assignable range is from 0 through 6 (practically in BCD), otherwise operation errors occur.
Carry out write processing after stopping the count operation through the setting of the START bit
in RCR2.
BIt: 7
6
5
4
3
2
1
0
-
-
-
-
-
Day
Initial value: 0
0
0
0
0
-
-
-
R/W: R R R R R R/W R/W R/W
Bit Bit Name
7 to 3 
2 to 0 Day
Initial
Value
R/W
All 0
R
Undefined R/W
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Day-of-Week Counting
Day-of-week is indicated with a binary code.
000: Sunday
001: Monday
010: Tuesday
011: Wednesday
100: Thursday
101: Friday
110: Saturday
111: Reserved (setting prohibited)
Rev. 1.00 Mar. 25, 2008 Page 707 of 1868
REJ09B0372-0100