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Section 14 Realtime Clock
R01UH0134EJ0400 Rev. 4.00 Page 689 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
14.3.12 Day of Week Alarm Register (RWKAR)
RWKAR is an alarm register corresponding to the BCD-coded day of week counter RWKCNT.
When the ENB bit is set to 1, a comparison with the RWKCNT value is performed. From among
RSECAR/RMINAR/RHRAR/RWKAR/RDAYAR/RMONAR/RCR3, the counter and alarm
register comparison is performed only on those with ENB bits set to 1, and if each of those
coincides, an alarm flag of RCR1 is set to 1.
The assignable range is from 0 through 6 + ENB bits (practically in BCD), otherwise operation
errors occur.
Undefined UndefinedUndefined Undefined
R/W
ENB
01234567
R/W R/W R/W
0
R
BIt:
Initial value:
R/W:
-
0
R
-
0
R
-
0
R
-Day
Bit Bit Name
Initial
Value R/W Description
7 ENB Undefined R/W When this bit is set to 1, a comparison with the
RWKCNT value is performed.
6 to 3 All 0 R Reserved
These bits are always read as 0. The write value should
always be 0.
2 to 0 Day Undefined R/W Day of Week Setting Value
000: Sunday
001: Monday
010: Tuesday
011: Wednesday
100: Thursday
101: Friday
110: Saturday
111: Reserved (setting prohibited)