PCF2129AT NXP [NXP Semiconductors], PCF2129AT Datasheet - Page 35
PCF2129AT
Manufacturer Part Number
PCF2129AT
Description
Integrated RTC, TCXO and quartz crystal
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCF2129AT.pdf
(68 pages)
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NXP Semiconductors
PCF2129A_1
Product data sheet
8.11.3.4 Register Hour_timestp
8.11.3.5 Register Day_timestp
8.11.3.6 Register Mon_timestp
8.11.3.7 Register Year_timestp
Table 40.
[1]
Table 41.
Table 42.
Table 43.
Bit
7 to 6 -
12 hour mode
5
4
3 to 0
24 hour mode
5 to 4 HOUR_TIMESTP
3 to 0
Bit
7 to 6 -
5 to 4 DAY_TIMESTP
3 to 0
Bit
7 to 5 -
4
3 to 0
Bit
7 to 4 YEAR_TIMESTP
3 to 0
Hour mode is set by the bit 12_24 in register Control_1.
Symbol
AMPM
HOUR_TIMESTP
Symbol
Symbol
MONTH_TIMESTP
Symbol
Hour_timestp - hour timestamp register (address 15h) bit description
Day_timestp - day timestamp register (address 16h) bit description
Mon_timestp - month timestamp register (address 17h) bit description
Year_timestp - year timestamp register (address 18h) bit description
[1]
[1]
Rev. 01 — 13 January 2010
Value
-
1
0 to 1
0 to 9
0 to 9
Value
-
0 to 3
0 to 9
Value
-
0 to 1
0 to 9
Value
0 to 9
0 to 9
0
0 to 2
Place value Description
-
-
-
ten’s place
unit place
ten’s place
unit place
Place value Description
-
ten’s place
unit place
Place value Description
-
ten’s place
unit place
Place value Description
ten’s place
unit place
Integrated RTC, TCXO and quartz crystal
unused
indicates AM
indicates PM
hour timestamp information coded in BCD
format when in 12 hour mode
hour timestamp information coded in BCD
format when in 24 hour mode
unused
day timestamp information coded in BCD
format
unused
month timestamp information coded in
BCD format
year timestamp information coded in BCD
format
PCF2129A
© NXP B.V. 2010. All rights reserved.
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