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SH7713 Datasheet(PDF) 557 Page - Renesas Technology Corp

Part # SH7713
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
PDF  904 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7713 Datasheet(HTML) 557 Page - Renesas Technology Corp

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Section 15 Realtime Clock (RTC)
Rev.1.50 Aug. 30, 2006 Page 517 of 860
REJ09B0288-0150
Bit
Bit Name
Initial Value
R/W
Description
7
ENB
0
R/W
Day of Week Alarm Enable
Specifies whether comparison of RWKCNT and
RWKAR is performed as an alarm condition.
0: Not compared
1: Compared
6 to 3
All 0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
2 to 0
R/W
Day of Week Alarm Code
The range can be set from 0 to 6 (decimal).
Code
Day of the Week
0:
Sunday
1:
Monday
2:
Tuesday
3:
Wednesday
4:
Thursday
5:
Friday
6:
Saturday
15.3.13
Date Alarm Register (RDAYAR)
RDAYAR is an alarm register corresponding to the date counter RDAYCNT. When the ENB bit
is set to 1, a comparison with the RDAYCNT value is performed. From among
RSECAR/RMINAR/RHRAR/RWKAR/RDAYAR/ and RMONAR, the counter and alarm register
comparison is performed only on those with ENB bits and the YAEN bit in RCR3 set to 1, and if
each of those coincide, an RTC alarm interrupt is generated.
The range of date alarm which can be set is 1 to 31 (decimal). Errant operation will result if any
other value is set. The RDAYCNT range that can be set changes with some months and in leap
years. Please confirm the correct setting.
RDAYAR is an 8-bit readable/writable register. The ENB bit in RDAYAR is initialized by a
power-on reset. The remaining RDAYAR fields are not initialized by a power-on reset or manual
reset, or in standby mode.



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