Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 12 REAL-TIME COUNTER
R01UH0042EJ0500 Rev.5.00 Page 647 of 1513
Aug 12, 2011
(9) Day count register (RC1DAY)
The RC1DAY register is an 8-bit register that takes a value of 1 to 31 (decimal) and indicates the count value of
days.
It counts up when the hour counter overflows.
This counter counts as follows.
• 01 to 31 (January, March, May, July, August, October, December)
• 01 to 30 (April, June, September, November)
• 01 to 29 (February in leap year)
• 01 to 28 (February in normal year)
When data is written to this register, it is written to a buffer and then to the counter up to 2 clocks (2 x 32.768 kHz)
later. Set a decimal value of 00 to 31 to this register in BCD code.
This register can be read or written in 8-bit units.
Reset sets this register to 01H.
Caution Setting a value other than 01 to 31 to the RC1DAY register is prohibited. Setting a value outside
the above-mentioned count range, such as “February 30” is also prohibited.
Remark See 12.4.1 Initial settings, 12.4.2 Rewriting each counter during the real-time counter operation,
and 12.4.3 Reading each counter during the real-time counter operation when reading or writing the
RC1DAY register.
00RC1DAY
After reset: 01H R/W Address: FFFFFAD6H