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PCF85263AT/A Datasheet(PDF) 13 Page - NXP Semiconductors

Part # PCF85263AT/A
Description  Tiny Real-Time Clock/calendar with alarm function, battery switch-over, time stamp input, and I2C-bus
PDF  100 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF85263AT/A Datasheet(HTML) 13 Page - NXP Semiconductors

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8.1.2 Control registers overview
Table 7.
Control and function registers overview
Bit positions labeled as - are not implemented. After reset, all registers are set according to Table 62 on page 59.
Address
Register name
Bit
Reference
7
6
5
4
3
2
1
0
Offset register
24h
Offset
OFFSET[7:0]
Section 8.8
Control registers
25h
Oscillator
CLKIV
OFFM
12_24
LOWJ
OSCD[1:0]
CL[1:0]
Section 8.10
26h
Battery_switch
-
-
-
BSOFF
BSRR
BSM[1:0]
BSTH
Section 8.11
27h
Pin_IO
CLKPM
TSPULL
TSL
TSIM
TSPM[1:0]
INTAPM[1:0]
Section 8.12
28h
Function
100TH
PI[1:0]
RTCM
STOPM
COF[2:0]
Section 8.13
29h
INTA_enable
ILPA
PIEA
OIEA
A1IEA
A2IEA
TSRIEA
BSIEA
WDIEA
Section 8.9
2Ah
INTB_enable
ILPB
PIEB
OIEB
A1IEB
A2IEB
TSRIEB
BSIEB
WDIEB
Section 8.9
2Bh
Flags
PIF
A2F
A1F
WDF
BSF
TSR3F
TSR2F
TSR1F
Section 8.14
RAM byte
2Ch
RAM_byte
B[7:0]
Section 8.6
WatchDog registers
2Dh
WatchDog
WDM
WDR[4:0]
WDS[1:0]
Section 8.5
Stop
2Eh
Stop_enable
-
-
-
-
-
-
-
STOP
Section 8.16
Reset
2Fh
Resets
CPR
0
1
0
SR
1
0
CTS
Section 8.15



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