PCF8563TS Philips Semiconductors, PCF8563TS Datasheet - Page 8

• Manufacturer Part Number: PCF8563TS
• Description: Real-time clock/calendar
• Manufacturer: Philips Semiconductors

Philips Semiconductors
9397 750 04855
Product specification
8.6.3 Seconds, Minutes and Hours registers
8.6.4 Days, Weekdays, Months/Century and Years registers
Table 10: Seconds/VL register bits description (address 02H)
Table 11: Minutes register bits description (address 03H)
Table 12: Hours register bits description (address 04H)
Table 13: Days register bits description (address 05H)
Table 14: Weekdays register bits description (address 06H)
Bit
7
6 to 0
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
Symbol
VL
<seconds>
Symbol
<minutes>
Symbol
<hours>
Symbol
<days>
Symbol
<weekdays> These bits represent the current weekday value 0 to 6;
16 April 1999
Description
VL = 0: reliable clock/calendar information is guaranteed;
VL = 1: reliable clock/calendar information is no longer
guaranteed.
These bits represent the current seconds value coded in BCD
format; value = 00 to 59.
Example: <seconds> = 101 1001, represents the value 59 s.
Description
not implemented
These bits represent the current minutes value coded in BCD
format; value = 00 to 59.
Description
not implemented
These bits represent the current hours value coded in BCD format;
value = 00 to 23.
Description
not implemented
These bits represent the current day value coded in BCD format;
value = 01 to 31.
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’.
Description
not implemented
see
These bits may be re-assigned by the user.
Table
15.
Real-time clock/calendar
© Philips Electronics N.V. 1999. All rights reserved.
PCF8563
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