Section 20 Realtime Clock (RTC)
Rev.1.00 Dec. 13, 2005 Page 717 of 1286
REJ09B0158-0100
20.3.9
Second Alarm Register (RSECAR)
RSECAR is an 8-bit readable/writable register used as an alarm register for the RTC's BCD-coded
second value counter, RSECCNT. When the ENB bit is set to 1, the RSECAR value is compared
with the RSECCNT value. Comparison between the counter and the alarm register is performed
for those registers among RSECAR, RMINAR, RHRAR, RWKAR, RDAYAR, and RMONAR in
which the ENB bit is set to 1, and the RCR1 alarm flag is set when the respective values all match.
The setting range is decimal 00 to 59 + ENB bit. The RTC will not operate normally if any other
value is set.
The ENB bit in RSECAR is initialized to 0 by a power-on reset. The other fields in RSECAR are
not initialized by a power-on or manual reset.
0
1
2
3
4
5
6
7
—
—
—
—
—
—
—
0
1-second units
10-second units
ENB
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
BIt:
Initial value:
R/W:
20.3.10 Minute Alarm Register (RMINAR)
RMINAR is an 8-bit readable/writable register used as an alarm register for the RTC's BCD-coded
minute value counter, RMINCNT. When the ENB bit is set to 1, the RMINAR value is compared
with the RMINCNT value. Comparison between the counter and the alarm register is performed
for those registers among RSECAR, RMINAR, RHRAR, RWKAR, RDAYAR, and RMONAR in
which the ENB bit is set to 1, and the RCR1 alarm flag is set when the respective values all match.
The setting range is decimal 00 to 59 + ENB bit. The RTC will not operate normally if any other
value is set.
The ENB bit in RMINAR is initialized by a power-on reset. The other fields in RMINAR are not
initialized by a power-on or manual reset.
0
1
2
3
4
5
6
7
—
—
—
—
—
—
—
0
1-minute units
10-minute units
ENB
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
BIt:
Initial value:
R/W:
Содержание SH7780 Series
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Страница 492: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Dec 13 2005 Page 442 of 1286 REJ09B0158 0100 ...
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Страница 726: ...Section 18 Timer Unit TMU Rev 1 00 Dec 13 2005 Page 676 of 1286 REJ09B0158 0100 ...
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Страница 1104: ...Section 27 NAND Flash Memory Controller FLCTL Rev 1 00 Dec 13 2005 Page 1054 of 1286 REJ09B0158 0100 ...
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