PCF2127AT/1 NXP [NXP Semiconductors], PCF2127AT/1 Datasheet - Page 11
PCF2127AT/1
Manufacturer Part Number
PCF2127AT/1
Description
Integrated RTC, TCXO and quartz crystal
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCF2127AT1.pdf
(80 pages)
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NXP Semiconductors
PCF2127A_2
Product data sheet
8.2.3 Register Control_3
Table 7.
[1]
[2]
Bit
7 to 5 PWRMNG[2:0]
4
3
2
1
0
Values see
Default value.
Symbol
BTSE
BF
BLF
BIE
BLIE
Control_3 - control and status register 3 (address 02h) bit description
Table
All information provided in this document is subject to legal disclaimers.
17.
Value
[1]
0
1
0
1
0
1
0
1
0
1
Rev. 02 — 7 May 2010
[2]
[2]
[2]
[2]
[2]
Description
control of the battery switch-over, battery low
detection, and extra power fail detection
functions
no timestamp when battery switch-over
occurs
time-stamped when battery switch-over
occurs
no battery switch-over interrupt generated
flag set when battery switch-over occurs;
battery status ok;
battery status low;
no interrupt generated from the battery flag
(BF)
interrupt generated when BF is set
no interrupt generated from battery low flag
(BLF)
interrupt generated when BLF is set
flag must be cleared to clear interrupt
no battery low interrupt generated
flag cannot be cleared using the interface
Integrated RTC, TCXO and quartz crystal
PCF2127A
© NXP B.V. 2010. All rights reserved.
Reference
Section 8.6
Section 8.12.4
Section 8.6.1
Section 8.6.3
Section 8.13.7
Section 8.13.8
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