PCF8563BS NXP [NXP Semiconductors], PCF8563BS Datasheet - Page 8

• Manufacturer Part Number: PCF8563BS
• Description: Real-time clock/calendar
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCF8563_6
Product data sheet
Table 8.
Table 9.
Table 10.
[1]
Table 11.
[1]
Table 12.
Table 13.
[1]
Bit
7
6 to 0
Bit
7 to 6
5 to 0
Bit
7 to 6
5 to 0
Bit
7 to 3
2 to 0
Weekday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Bit
7
6 to 5
4 to 0
The PCF8563 compensates for leap years by adding a 29th day to February if the year counter contains a
value which is exactly divisible by 4, including the year 00.
These bits may be re-assigned by the user.
This bit may be re-assigned by the user.
[1]
Symbol
x
MINUTES[6:0]
Symbol
x
HOURS[5:0]
Symbol
x
DAYS[5:0]
Symbol
x
WEEKDAYS[2:0] 0 to 6
Symbol
C
x
MONTHS[4:0]
Minutes - Minutes register (address 03h) bit description
Hours - Hours register (address 04h) bit description
Days - Days register (address 05h) bit description
Weekdays - Weekdays register (address 06h) bit description
Weekday assignments
Century_months - Century and Months register (address 07h) bit description
[1]
Bit 7
x
x
x
x
x
x
x
Rev. 06 — 21 February 2008
Bit 6
x
x
x
x
x
x
x
Value
00 to 59
Value
00 to 23
Value
01 to 31
Value
Value
0
1
01 to 12
Bit 5
x
x
x
x
x
x
x
Description
not relevant
the current minutes, coded in BCD format
Description
not relevant
the current hours, coded in BCD format
Description
not relevant
the current day, coded in BCD format
Description
not relevant
the current weekday, coded in BCD format,
see
Description
century; this bit is toggled when the years register
overflows from 99 to 00
not relevant
the current month, coded in BCD format, see
indicates the century is 20xx
indicates the century is 19xx
Table
Bit 4
x
x
x
x
x
x
x
12.
Bit 3
x
x
x
x
x
x
x
Real-time clock/calendar
Bit 2
0
0
0
0
1
1
1
PCF8563
© NXP B.V. 2008. All rights reserved.
[1]
Bit 1
0
0
1
1
0
0
1
Table 14
Bit 0
0
1
0
1
0
1
0
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