PCF2127 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
'PCF2127' PDF : 101 Pages View PDF
NXP Semiconductors
PCF2127
Accurate RTC with integrated quartz crystal for industrial applications
8.12.3.5 Register Day_timestp
Table 75. Day_timestp - day timestamp register (address 16h) bit allocation
Bit positions labeled as - are not implemented and return 0 when read. Bits labeled as X are undefined at power-on and
unchanged by subsequent resets.
Bit
7
6
5
4
3
2
1
0
Symbol
-
-
DAY_TIMESTP (1 to 31)
Reset
-
-
X
X
X
X
X
X
value
Table 76. Day_timestp - day timestamp register (address 16h) bit description
Bit positions labeled as - are not implemented and return 0 when read. Bits labeled as X are undefined at power-on and
unchanged by subsequent resets.
Bit
Symbol
Value
Place value Description
7 to 6
-
-
-
unused
5 to 4
DAY_TIMESTP
0 to 3
ten’s place day timestamp information coded in BCD format
3 to 0
0 to 9
unit place
8.12.3.6 Register Mon_timestp
Table 77. Mon_timestp - month timestamp register (address 17h) bit allocation
Bit positions labeled as - are not implemented and return 0 when read. Bits labeled as X are undefined at power-on and
unchanged by subsequent resets.
Bit
7
6
5
4
3
2
1
0
Symbol
-
-
-
MONTH_TIMESTP (1 to 12)
Reset
-
-
-
X
X
X
X
X
value
Table 78. Mon_timestp - month timestamp register (address 17h) bit description
Bit positions labeled as - are not implemented and return 0 when read. Bits labeled as X are undefined at power-on and
unchanged by subsequent resets.
Bit
Symbol
Value
Place value Description
7 to 5
-
-
-
unused
4
MONTH_TIMESTP
0 to 1
ten’s place month timestamp information coded in BCD format
3 to 0
0 to 9
unit place
8.12.3.7 Register Year_timestp
Table 79. Year_timestp - year timestamp register (address 18h) bit allocation
Bits labeled as X are undefined at power-on and unchanged by subsequent resets.
Bit
7
6
5
4
3
2
1
0
Symbol
YEAR_TIMESTP (0 to 99)
Reset
value
X
X
X
X
X
X
X
X
Table 80. Year_timestp - year timestamp register (address 18h) bit description
Bits labeled as X are undefined at power-on and unchanged by subsequent resets.
Bit
Symbol
Value
Place value Description
7 to 4
YEAR_TIMESTP
0 to 9
ten’s place year timestamp information coded in BCD format
3 to 0
0 to 9
unit place
PCF2127
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 19 December 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
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