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
Table 29. Seconds coded in BCD format
Seconds
value in
decimal
Upper-digit (ten’s place)
Bit 6
Bit 5
Bit 4
00
0
0
0
01
0
0
0
02
0
0
0
:
:
:
:
09
0
0
0
10
0
0
1
:
:
:
:
58
1
0
1
59
1
0
1
Digit (unit place)
Bit 3
Bit 2
0
0
0
0
0
0
:
:
1
0
0
0
:
:
1
0
1
0
Bit 1
0
0
1
:
0
0
:
0
0
Bit 0
0
1
0
:
1
0
:
0
1
8.9.2 Register Minutes
Table 30. Minutes - minutes register (address 04h) 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
-
MINUTES (0 to 59)
Reset
value
-
X
X
X
X
X
X
X
Table 31. Minutes - minutes register (address 04h) 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
-
-
-
unused
6 to 4
MINUTES
0 to 5
ten’s place actual minutes 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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