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ST25R3911B Datasheet(PDF) 53 Page - STMicroelectronics

Part # ST25R3911B
Description  High performance HF reader / NFC initiator with 1.4 W supporting VHBR and AAT
PDF  116 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST25R3911B Datasheet(HTML) 53 Page - STMicroelectronics

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Registers are set to their default state at power-up and after sending direct command Set Default. The exceptions
are IO configuration register 1 , IO configuration register 2 and Operation control register. These registers are
related to the hardware configuration and are reset to their default state only at power-up.
Table 18. Registers map
Address
(hex)
Main function
Content
Comment
00
IO configuration
IO configuration register 1
Set to default state
only at power-up
RW
01
IO configuration register 2
RW
02
Operation control and
Mode definition
Operation control register
Set to default state
only at power-up
RW
03
Mode definition register
-
RW
04
Bit rate definition register
-
RW
05
Configuration
ISO14443A and NFC 106kb/s settings register
-
RW
06
ISO14443B settings register 1
-
RW
07
ISO14443B and FeliCa settings register
-
RW
08
Stream mode definition register
-
RW
09
Auxiliary definition register
-
RW
0A
Receiver configuration register 1
-
RW
0B
Receiver configuration register 2
-
RW
0C
Receiver configuration register 3
-
RW
0D
Receiver configuration register 4
-
RW
0E
Timer definition
Mask receive timer register
-
RW
0F
No-response timer register 1
-
RW
10
No-response timer register 2
-
RW
11
General purpose and no-response timer control
register
-
RW
12
General purpose timer register 1
-
RW
13
General purpose timer register 2
-
RW
14
Interrupt and associated reporting
Main interrupt register
-
RW
15
Mask timer and NFC interrupt register
-
RW
16
Mask error and wake-up interrupt register
-
RW
17
Main interrupt register
-
R
18
Mask timer and NFC interrupt register
-
R
19
Error and wake-up interrupt register
-
R
1A
FIFO status register 1
-
R
1B
FIFO status register 2
-
R
1C
Collision display register
-
R
1D
Definition of transmitted bytes
Number of transmitted bytes register 1
-
RW
1E
Number of transmitted bytes register 2
-
RW
1F
NFCIP bit rate detection display
NFCIP bit rate detection display register
-
R
20
A/D converter output
A/D converter output register
-
R
21
Antenna calibration
Antenna calibration control register
-
RW
ST25R3911B
Registers
DS11793 - Rev 6
page 53/116



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