NXP Semiconductors
PCF85263A
Tiny RTC with alarm, battery switch-over, and I2C-bus
8.2.4 Definition of weekdays
Definition may be reassigned by the user.
Table 10. Weekday assignments
Day
Bit
2
1
Sunday
0
0
Monday
0
0
Tuesday
0
1
Wednesday
0
1
Thursday
1
0
Friday
1
0
Saturday
1
1
8.2.5 Definition of months
Table 11. Month assignments in BCD format
Month
Upper-digit Digit (unit place)
(ten’s place)
Bit 4
Bit 3
Bit 2
January
0
0
0
February
0
0
0
March
0
0
0
April
0
0
1
May
0
0
1
June
0
0
1
July
0
0
1
August
0
1
0
September 0
1
0
October
1
0
0
November
1
0
0
December
1
0
0
0
0
1
0
1
0
1
0
Bit 1
0
1
1
0
0
1
1
0
0
0
0
1
Bit 0
1
0
1
0
1
0
1
0
1
0
1
0
PCF85263A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4.1 — 27 November 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
16 of 100