Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 12 REAL-TIME COUNTER
R01UH0042EJ0500 Rev.5.00 Page 645 of 1513
Aug 12, 2011
(7) Minute count register (RC1MIN)
The RC1MIN register is an 8-bit register that takes a value of 0 to 59 (decimal) and indicates the count value of
minutes.
It counts up when the second counter overflows.
When data is written to this register, it is written to a buffer and then to the counter up to 2 clocks (32.768 kHz) later.
Set a decimal value of 00 to 59 to this register in BCD code.
This register can be read or written 8-bit units.
Reset sets this register to 00H.
Caution Setting a value other than 00 to 59 to the RC1MIN register is prohibited.
Remark See 12.4.1 Initial settings, 12.4.2 Rewriting each counter during real-time counter operation, and
12.4.3 Reading each counter during real-time counter operation when reading or writing the
RC1MIN register.
0RC1MIN
After reset: 00H R/W Address: FFFFFAD3H
(8) Hour count register (RC1HOUR)
The RC1HOUR register is an 8-bit register that takes a value of 0 to 23 or 1 to 12 (decimal) and indicates the count
value of hours.
It counts up when the minute counter overflows.
When data is written to this register, it is written to a buffer and then to the counter up to 2 clocks (32.768 kHz) later.
Set a decimal value of 00 to 23, 01 to 12, or 21 to 32 to this register in BCD code.
This register can be read or written 8-bit units.
Reset sets this register to 12H.
However, the value of this register is 00H if the AMPM bit is set to 1 after reset.
Cautions 1. Bit 5 of the RC1HOUR register indicates a.m. (0) or p.m. (1) if AMPM = 0 (if the 12-hour
system is selected).
2. Setting a value other than 01 to 12, 21 to 32 (AMPM bit= 0), or 00 to 23 (AMPM bit = 1) to
the RC1HOUR register is prohibited.
Remark See 12.4.1 Initial settings, 12.4.2 Rewriting each counter during real-time counter operation, and
12.4.3 Reading each counter during real-time counter operation when reading or writing the
RC1HOUR register.
00RC1HOUR
After reset: 12H R/W Address: FFFFFAD4H