PCF2129AT NXP [NXP Semiconductors], PCF2129AT Datasheet - Page 32

• Manufacturer Part Number: PCF2129AT
• Description: Integrated RTC, TCXO and quartz crystal
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCF2129A_1
Product data sheet
Table 33.
Table 34.
The following tables show what instruction must be sent to clear the appropriate flag.
Table 35.
[1]
Table 36.
[1]
Register
Control_2
Register
Control_2
Register
Control_2
Register
Control_2
The bits labeled as - have to be rewritten with the previous values.
The bits labeled as - have to be rewritten with the previous values.
Flag location in register Control_2
Example values in register Control_2
Example to clear only AF (bit 4)
Example to clear only MSF (bit 7)
Bit
7
MSF
Bit
7
1
Bit
7
1
Bit
7
0
Rev. 01 — 13 January 2010
6
WDTF
6
0
6
0
6
0
5
TSF2
5
1
5
1
5
1
4
AF
4
1
4
0
4
1
Integrated RTC, TCXO and quartz crystal
3
T
3
0
3
0
3
0
2
-
2
0
2
0
2
0
[1]
[1]
PCF2129A
© NXP B.V. 2010. All rights reserved.
1
-
1
0
1
0
1
0
[1]
[1]
0
T
0
0
0
0
0
0
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