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ST25R3911B 数据表(PDF) 60 Page - STMicroelectronics

部件名 ST25R3911B
功能描述  High performance HF reader / NFC initiator with 1.4 W supporting VHBR and AAT
PDF  116 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST25R3911B 数据表(HTML) 60 Page - STMicroelectronics

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1.3.6
ISO14443A and NFC 106kb/s settings register
Address: 05h
Type: RW
Table 27. ISO14443A and NFC 106kb/s settings register
Bit
Name
Default
Function
Comments
7
no_tx_par (1) 0
1: No parity bit is generated
during Tx
Data stream is taken from FIFO, transmit has to be done using command
Transmit Without CRC.
6
no_rx_par(1) 0
1: Receive without parity and
CRC
When set to 1 received bit stream is put in the FIFO, no parity and CRC
detection is done, must be set to 0 when not in ISO14443A mode.
5
nfc_f0
0
1: Support of NFCIP-1 Transport
Frame format
Add SB (F0) and LEN bytes during Tx and skip SB (F0) byte during Rx.
4
p_len3
0
Refer to Table 28
Modulation pulse width, defined in number of 13.56 MHz clock periods.
3
p_len2
0
2
p_len1
0
1
p_len0
0
0
antcl
0
1: ISO14443 anticollision frame
Must be set to 1 when ISO14443A bit oriented anticollision frame is sent.
1. no_tx_par and no_rx_par are used to send and receive custom frames like Mifare™ Classic frames.
Table 28. ISO14443A modulation pulse width
p_len3
p_len2
p_len1
p_len0
Pulse width in number of 1/fc for different bit rates
fc/128
fc/64
fc/32
fc/16
0
1
1
1
42
-
-
-
0
1
1
0
41
20
-
-
0
1
0
1
40
21
-
-
0
1
0
0
39
22
13
-
0
0
1
1
38
21
12
8
0
0
1
0
37
20
11
7
0
0
0
1
36
19
10
6
0
0
0
0
35
18
9
5
1
1
1
1
34
17
8
4
1
1
1
0
33
16
7
3
1
1
0
1
32
15
6
2
1
1
0
0
31
14
5
-
1
0
1
1
30
13
-
-
1
0
1
0
29
12
-
-
1
0
0
1
28
-
-
-
1
0
0
0
27
-
-
-
ST25R3911B
Registers
DS11793 - Rev 6
page 60/116



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