HD64F3687HV Datasheet, PDF (178/538 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

Section 10 Realtime Clock (RTC)
10.3.2 Minute Data Register (RMINDR)
RMINDR counts the BCD-coded minute value on the carry generated once per minute by the
RSECDR counting. The setting range is decimal 00 to 59.
Initial
Bit
Bit Name Value R/W Description
7
BSY
—
R
RTC busy
This bit is set to 1 when the RTC is updating (operating)
the values of second, minute, hour, and day-of-week data
registers. When this bit is 0, the values of second, minute,
hour, and day-of-week data registers must be adopted.
6
MN12
—
R/W Counting ten’s position of minutes
5
MN11
—
R/W Counts on 0 to 5 for 60-minute counting.
4
MN10
—
R/W
3
MN03
—
R/W Counting one’s position of minutes
2
MN02
—
1
MN01
—
R/W Counts on 0 to 9 once per minute. When a carry is
R/W ^{generated, 1 is added to the ten’s position.}
0
MN00
—
R/W
Rev.5.00 Nov. 02, 2005 Page 144 of 500
REJ09B0027-0500