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ST25R200 数据表(PDF) 47 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) 47 Page - STMicroelectronics

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5.14.24
Protocol reception register 2
Address: 17h
Type: RW
Domain: RD
Table 39. Protocol reception register 2
Bit
Name
Default
Function
Comment
7
RFU
0
-
-
6
tr1_min_len6
0
-
-
5
tr1_min_len5
1
Minimum remaining TR1 length
defined in subcarrier periods
(0-127)
If TR1 is shorter than the minimum, a soft framing error is
reported. start_wait<5:0> needs to be taken into account.
4
tr1_min_len4
1
3
tr1_min_len3
1
2
tr1_min_len2
0
1
tr1_min_len1
1
0
tr1_min_len0
0
5.14.25
Protocol reception register 3
Address: 18h
Type: RW
Domain: RD
Table 40. Protocol reception register 3
Bit
Name
Default
Function
Comment
7
tr1_max_len7
1
Maximum remaining TR1
length defined in subcarrier
periods (0-255)
If TR1 is longer than the maximum, a soft framing error is
reported. start_wait<5:0> needs to be taken into account.
6
tr1_max_len6
1
5
tr1_max_len5
0
4
tr1_max_len4
0
3
tr1_max_len3
0
2
tr1_max_len2
0
1
tr1_max_len1
0
0
tr1_max_len0
0
5.14.26
EMD register 1
Address: 19h
Type: RW
Domain: RD
Table 41. EMD register 1
Bit
Name
Default
Function
Comment
7
emd_thld3
0
EMD threshold definition in number of
received bytes
If the received message length is less than the number of
bytes defined by emd_thld, then EMD suppression is
triggered.
6
emd_thld2
1
5
emd_thld1
0
4
emd_thld0
0
ST25R200
Application information
DS13658 - Rev 2
page 47/88



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