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PCA2129T/Q900/2 Datasheet(PDF) 26 Page - NXP Semiconductors

Part # PCA2129T/Q900/2
Description  Automotive accurate RTC with integrated quartz crystal
PDF  84 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA2129T/Q900/2 Datasheet(HTML) 26 Page - NXP Semiconductors

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PCA2129
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
Rev. 5 — 19 December 2014
26 of 84
NXP Semiconductors
PCA2129
Automotive accurate RTC with integrated quartz crystal
8.8.2 Register Minutes
Table 23.
Seconds coded in BCD format
Seconds
value in
decimal
Upper-digit (ten’s place)
Digit (unit place)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
00
000
0
000
01
000
0
001
02
000
0
010
:
:::
:
:::
09
000
1
001
10
001
0
000
:
:::
:
:::
58
101
1
000
59
101
1
001
Table 24.
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
-
XX
XXX
XX
Table 25.
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
3to0
0 to9
unit place



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