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ST25R200 数据表(PDF) 40 Page - STMicroelectronics

部件名 ST25R200
功能描述  NFC/HF RFID reader IC
PDF  88 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST25R200 数据表(HTML) 40 Page - STMicroelectronics

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Table 24. Correlator register 3
Bit
Name
Default
Function
Comment
7
RFU
0
-
-
6
RFU
0
-
-
5
start_wait5
0
Wait time for subcarrier detection
-
4
start_wait4
0
3
start_wait3
0
2
start_wait2
1
1
start_wait1
1
0
start_wait0
1
5.14.13
Correlator register 4
Address: 0Ch
Type: RW
Domain: RD
Table 25. Correlator register 4
Bit
Name
Default
Function
Comment
7
coll_lvl3
1
Manchester: collision level ratio
-
6
coll_lvl2
0
5
coll_lvl1
1
4
coll_lvl0
0
3
data_lvl3
1
Manchester: data level ratio
BPSK: Subcarrier end detection level
-
2
data_lvl2
0
1
data_lvl1
1
0
data_lvl0
0
5.14.14
Correlator register 5
Address: 0Dh
Type: RW
Domain: RD
Table 26. Correlator register 5
Bit
Name
Default
Function
Comment
7
RFU
0
-
-
6
RFU
0
-
-
5
dis_soft_sq
0
0: Enables soft squelch with noise measurement when the receiver is enabled
1: Disables soft squelch
-
4
en_subc_end
0
BPSK only
0: No subcarrier end detection (reception stops with valid EoF or timeout)
1: Fast subcarrier end detection
-
3
no_phase
0
BPSK only
0: Enables phase correction after signal start detection
1: Disables phase correction after signal start detection
-
ST25R200
Application information
DS13658 - Rev 2
page 40/88



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