PCA8565 Ver la hoja de datos (PDF) - NXP Semiconductors.
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PCA8565 Datasheet PDF : 39 Pages
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NXP Semiconductors
PCA8565
Real time clock/calendar
Table 14. Weekday assignments
Day[1]
Bit
2
1
0
Sunday
0
0
0
Monday
0
0
1
Tuesday
0
1
0
Wednesday
0
1
1
Thursday
1
0
0
Friday
1
0
1
Saturday
1
1
0
[1] Definition may be re-assigned by the user.
Table 15. Register Months_century (address 07h) bits description
Bit Symbol Value Place value Description
7
C[1]
0[2]
-
indicates the century is x
1
-
indicates the century is x + 1
6 to 5 -
-
-
unused
4
MONTHS 0 to 1[3] ten’s place actual month coded in BCD format, see Table 16
3 to 0
0 to 9[3] unit place
[1] This bit may be re-assigned by the user.
[2] This bit is toggled when the years register overflows from 99 to 00.
[3] Values shown in decimal.
Table 16. Month assignments coded 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
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
PCA8565_2
Product data sheet
Rev. 02 — 16 June 2009
© NXP B.V. 2009. All rights reserved.
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