RV-8564 Datasheet, PDF (11/40 Pages) MICORO CRYSTAL SWITZERLAND – I2C-Bus Interface Real Time Clock

Micro Crystal
Real Time Clock / Calendar Module
RV-8564
8.3.3.HOURS (address 04h…bits description)
Address
04h
Function
Hours
Bit 7
X
Bit 6
X
Bit 5
20
Bit 4
10
Bit 3
8
Bit 2
4
Bit 1
2
Bit
7 to 6
5 to 0
Symbol
X
Hours
Value
-
0 to 23
Description
Unused
This register holds the current hours coded in BCD format
8.3.4.DAYS (address 05h…bits description)
Address
05h
Function
Days
Bit 7
X
Bit 6
X
Bit 5
20
Bit 4
10
Bit 3
8
Bit 2
4
Bit 1
2
Bit
7 to 6
5 to 0
Symbol
X
Days
Value
-
1 to 31
Description
Unused
This register holds the current day coded in BCD format
8.3.5.WEEKDAYS (address 06h…bits description)
Address
06h
Function
Weekdays
Bit 7
X
Bit 6
X
Bit 5
20
Bit 4
10
Bit 3
8
Bit 2
4
Bit 1
2
Bit
7 to 3
2 to 0
Symbol
X
Weekdays
Weekdays¹⁾
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
1) _{Definition may be re-assigned by the user.}
Value
-
0 to 6
Description
Unused
This register holds the current weekday
Bit 7
X
X
X
X
X
X
X
Bit 6
X
X
X
X
X
X
X
Bit 5
X
X
X
X
X
X
X
Bit 4
X
X
X
X
X
X
X
Bit 3
X
X
X
X
X
X
X
Bit 2
0
0
0
0
1
1
1
Bit 1
0
0
1
1
0
0
1
Bit 0
1
Bit 0
1
Bit 0
1
Bit 0
0
1
0
1
0
1
0
11/40