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RTC_SS
20.3.5.4 DAYS_REG Register (offset = Ch) [reset = 1h]
DAYS_REG is shown in Figure 20-64 and described in Table 20-67.
The DAYS_REG is used to program the day of the month value of the current date. Days are stored as
BCD format. In BCD format, the decimal numbers 0 through 9 are encoded with their binary equivalent. If
the day value of the date is 28, DAY0 is set as 8 and DAY1 is set as 2.
Figure 20-64. DAYS_REG Register
31 30 29 28 27 26 25 24
Reserved
R-0h
23 22 21 20 19 18 17 16
Reserved
R-0h
15 14 13 12 11 10 9 8
Reserved
R-0h
7 6 5 4 3 2 1 0
Reserved DAY1 DAY0
R-0h R/W-0h R/W-1h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 20-67. DAYS_REG Register Field Descriptions
Bit Field Type Reset Description
31-6 Reserved R 0h
5-4 DAY1 R/W 0h
2nd digit of days, Range is 0 to 3
3-0 DAY0 R/W 1h
1st digit of days, Range is 0 to 9
3637
SPRUH73H–October 2011–Revised April 2013 Timers
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