PCF8563 查看數據表（PDF） - Philips Electronics
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PCF8563 Datasheet PDF : 30 Pages
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Philips Semiconductors
PCF8563
Real-time clock/calendar
Table 15: Weekday assignments
Day
Bit 2
Sunday
0
Monday
0
Tuesday
0
Wednesday
0
Thursday
1
Friday
1
Saturday
1
Bit 1
0
0
1
1
0
0
1
Bit 0
0
1
0
1
0
1
0
Table 16: Months/Century register bits description (address 07H)
Bit
Symbol Description
7
C
Century bit. C = 0; indicates the century is 20xx.
C = 1; indicates the century is 19xx. ‘xx’ indicates the value held in the
Years register; see Table 18.
This bit is toggled when the Years register overflows from 99 to 00.
These bits may be re-assigned by the user.
6 to 5 −
not implemented
4 to 0
<months> These bits represents the current month value coded in BCD format;
value = 01 to 12; see Table 17.
Table 17: Month assignments
Month
Bit 4
January
0
February
0
March
0
April
0
May
0
June
0
July
0
August
0
September
0
October
1
November
1
December
1
Bit 3
0
0
0
0
0
0
0
1
1
0
0
0
Bit 2
0
0
0
1
1
1
1
0
0
0
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
Table 18: Years register bits description (address 08H)
Bit
Symbol Description
7 to 0
<years>
This register represents the current year value coded in BCD
format; value = 00 to 99.
9397 750 04855
Product specification
16 April 1999
© Philips Electronics N.V. 1999. All rights reserved.
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