PCF85063TP All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 4 — 6 May 2015 19 of 52
NXP Semiconductors
PCF85063TP
Tiny Real-Time Clock/calendar
8.3.2 Register Minutes
[1] Default value.
8.3.3 Register Hours
[1] Hour mode is set by the 12_24 bit in register Control_1.
[2] Default value.
8.3.4 Register Days
[1] If the year counter contains a value, which is exactly divisible by 4 (including the year 00), the PCF85063TP
compensates for leap years by adding a 29th day to February.
[2] Default value.
[3] Default value is 1.
8.3.5 Register Weekdays
Table 21. Minutes - minutes register (address 05h) bit description
Bit Symbol Value Place value Description
7 - 0 - unused
6to4 MINUTES 0
[1]
to 5 ten’s place actual minutes coded in BCD
format
3 to 0 0
[1]
to 9 unit place
Table 22. Hours - hours register (address 06h) bit description
Bit Symbol Value Place value Description
7 to 6 - 00 - unused
12 hour mode
[1]
5AMPM AM/PM indicator
0
[2]
-AM
1- PM
4 HOURS 0
[2]
to 1 ten’s place actual hours in 12 hour mode
coded in BCD format
3to0 0
[2]
to 9 unit place
24 hour mode
[1]
5 to 4 HOURS 0
[2]
to 2 ten’s place actual hours in 24 hour mode
coded in BCD format
3to0 0
[2]
to 9 unit place
Table 23. Days - days register (address 07h) bit description
Bit Symbol Value Place value Description
7 to 6 - 00 - unused
5to4 DAYS
[1]
0
[2]
to 3 ten’s place actual day coded in BCD format
3to0 0
[3]
to 9 unit place
Table 24. Weekdays - weekdays register (address 08h) bit description
Bit Symbol Value Description
7 to 3 - 00000 unused
2to0 WEEKDAYS 0to6 actual weekday values, see Table 25
