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Programming Model
11.2.2
RTC Day Count Register
The real-time clock day count register (DAYR) contains the data from the day counter. The maximum
value of DAYR is 512. When the hours counter in RTCTIME reaches 23, the next time increment resets it
to 00 and increments the day counter. This register can be read or written at any time. After a write, the
current day assumes the new value. This register cannot be reset since it is used to keep the time. The
settings for the DAYR register are described in Table 11-3.
DAYR
BIT
14
13
15
TYPE
0
0
RESET
Name
Reserved
Reserved
Bits 15–9
DAYS
Days—This field indicates the current setting
Bits 8–0
of the day.
11-6
RTC Day Counter Register
12
11
10
0
0
0
0
Table 11-3. RTC Day Counter Register Description
Description
MC68VZ328 User's Manual
9
8
7
6
5
rw
rw
rw
rw
0
?
?
?
?
0x0XXX
These bits are reserved and should be set to
0.
The bits can be set to any value between 0
and 511.
0x(ff)FFFB1A
4
3
2
1
DAYS
rw
rw
rw
rw
?
?
?
?
Setting
BIT
0
rw
?
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