pcf8523u/12aa/1 NXP Semiconductors, pcf8523u/12aa/1 Datasheet - Page 11

• Manufacturer Part Number: pcf8523u/12aa/1
• Description: Pcf8523 Real-time Clock Rtc And Calendar
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCF8523
Product data sheet
8.2.3 Register Control_3
Table 7.
[1]
[2]
Bit
7 to 5
4
3
2
1
0
Default value is 111.
Default value.
Symbol
PM[2:0]
-
BSF
BLF
BSIE
BLIE
Control_3 - control and status register 3 (address 02h) bit description
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 27 January 2011
Value
see
-
0
1
0
1
0
1
0
1
[2]
[2]
[2]
[2]
Table 9
[1]
Description
battery switch-over and battery low detection
control
unused
no battery switch-over interrupt generated
flag set when battery switch-over occurs; flag
must be cleared to clear interrupt
battery status ok
battery status low; flag is read-only
no interrupt generated from battery switch-over
flag, BSF
interrupt generated when BSF is set
no interrupt generated from battery low
flag, BLF
interrupt generated when BLF is set
Real-Time Clock (RTC) and calendar
PCF8523
© NXP B.V. 2011. All rights reserved.
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