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PCF8564AU 数据表(PDF) 11 Page - NXP Semiconductors

部件名 PCF8564AU
功能描述  Real time clock and calendar
PDF  48 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

PCF8564AU 数据表(HTML) 11 Page - NXP Semiconductors

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PCF8564A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 3 — 26 August 2013
11 of 48
NXP Semiconductors
PCF8564A
Real time clock and calendar
[1]
Definition may be re-assigned by the user.
8.4.6 Register Months
[1]
This bit may be re-assigned by the user.
[2]
This bit is toggled when the register Years overflows from 99 to 00.
Table 15.
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
110
Table 16.
Months - months and century flag register (address 07h) bit description
Bit
Symbol
Value
Place value Description
7C[1]
0[2]
-
indicates the century is x
1
-
indicates the century is x + 1
6 to 5 -
-
-
unused
4
MONTHS
0 to 1
ten’s place
actual month coded in BCD format, see Table 17
3 to 0
0 to 9
unit place
Table 17.
Month assignments coded in BCD format
Month
Upper-digit
(ten’s place)
Digit (unit place)
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
January
0
0
0
0
1
February
0
0
0
1
0
March
0
0
0
1
1
April
00
100
May
00
101
June
00
110
July
00
111
August
01
000
September
0
1
0
0
1
October
10
000
November
10
001
December
10
010



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