RV-8564 Datasheet, PDF (12/40 Pages) MICORO CRYSTAL SWITZERLAND – I2C-Bus Interface Real Time Clock

Micro Crystal
Real Time Clock / Calendar Module
RV-8564
8.3.6.MONTHS / CENTURY (address 07h…bits description)
Address
07h
Function
Months
Bit 7
C
Bit 6
X
Bit 5
X
Bit 4
10
Bit 3
8
Bit 2
4
Bit 1
2
Bit
7
6 to 5
4 to 0
Symbol
C¹⁾
X
Months
Value
0²⁾
1
-
1 to 12
Description
Indicates the century is x
Indicates the century is x + 1
Unused
This register holds the current month coded in BCD format
Months
January
February
March
April
May
June
July
August
September
October
November
December
Bit 7
C
C
C
C
C
C
C
C
C
C
C
C
Bit 6
X
X
X
X
X
X
X
X
X
X
X
X
1) _{This bit may be re-assigned by the user.}
2) _{This bit is toggled when the register Years overflows from 99 to 00.}
Bit 5
X
X
X
X
X
X
X
X
X
X
X
X
Bit 4
0
0
0
0
0
0
0
0
0
1
1
1
Bit 3
0
0
0
0
0
0
0
1
1
0
0
0
Bit 2
0
0
0
1
1
1
1
0
0
0
0
0
Bit 1
0
1
1
0
0
1
1
0
0
0
0
1
Bit 0
1
Bit 0
1
0
1
0
1
0
1
0
1
0
1
0
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