Micro Crystal
Ultra Small Real-Time Clock Module with SPI-Bus Interface
RV-8063-C7
October 2018
15/58
Rev. 1.1
07h
– Date
This register holds the current date of the month, in two binary coded decimal (BCD) digits. Values will range from
01 to 31. Leap years are correctly handled from 2000 to 2099.
Address
Function
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
07h
Date
X
X
20
10
8
4
2
1
Reset
0
0
0
0
0
0
0
1
Bit
Symbol
Value
Description
7:6
X
0
Unused
5:0
Date
01 to 31
Holds the current date of the month, coded in BCD format.
– Default value
= 01
08h - Weekday
This register holds the current day of the week. Each value represents one weekday that is assigned by the user.
Values will range from 0 to 6.
Address
Function
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
08h
Weekday
X
X
X
X
X
4
2
1
Reset
0
0
0
0
0
1
1
0
Bit
Symbol
Value
Description
7:3
X
0
Unused
2:0
Weekday
0 to 6
Holds the weekday counter value.
Weekday
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Weekday 1
0
0
0
0
0
0
0
0
Weekday 2
0
0
1
Weekday 3
0
1
0
Weekday 4
0
1
1
Weekday 5
1
0
0
Weekday 6
1
0
1
Weekday 7
– Default value
1
1
0