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STRFNFCA bảng dữ liệu(PDF) 20 Page - STMicroelectronics

tên linh kiện STRFNFCA
Giải thích chi tiết về linh kiện  Near field communication transceiver
PDF  74 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STRFNFCA bảng dữ liệu(HTML) 20 Page - STMicroelectronics

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Commands
STRFNFCA
20/74
Doc ID 023077 Rev 10
ISO/IEC 18092
NFC Forum Tag
Type 3
0x04
0
7:6
Transmission data rate
00
: RFU
01
: 212 Kbps
10
: 424 Kbps
11
: RFU
>>>0x02020451
:
ISO/IEC18092 tag, 212 Kbps
transmission and reception
rates with CRC appended.
Parameter ‘Slot counter’ is not
mandatory. If it is not present, it
is assumed that SlotCounter =
0x00
(1 slot)
For device detection
commands, byte 1 bit 4 must be
set to ‘0’. In this case, the FWT
is 2.4 ms for the 1st slot and
1.2 ms more for each following
slot, if slot counter is specified.
If slot counter = 0x10, the
STRFNFCA does not respect
reply timings, but polls
incoming data and searches a
valid response during ~8.4 ms.
5:4
Reception data rate
00
: RFU
01
: 212 Kbps
10
: 424 Kbps
11
: RFU
3:1
RFU
0
Append CRC if set to ‘1’.
(1)
1
7:5
RFU
4
0: FWT = 2.4 ms
1: FWT is specified by
PP:MM bits
3:0
Slot counter
0
: 1 slot
1
: 2 slots
…
F
: 16 slots
2,3
AFDT (Optional) 2 bytes
0xPP 0xMM
Set the maximum
STRFNFCA listening time
so that it fits the maximum
ISO FWT:
0xPP
≤0x0E,
0x01
≤0xMM ≤0xFE
Frame Waiting Time (FWT) =
(2PP) *(MM+1) * 4096/13.56 µs
If AFDT is not specified,
the default FWT is ~ 302 µs
1.
It is recommended to set this bit to ‘1’.
2.
Not characterized.
3.
Max TR1 (Synchronization Time as defined in ISO/IEC 14443-2, Type B) supported by the STRFNFCA is
170 µs. This value will be increased to 302 µs in the next STRFNFCA revision.
Table 9.
List of <Parameters> values for the PROTOCOLSELECT command for
different protocols (Reader) (continued)
Protocol
Code
Parameters
Examples of commands
Byte
Bit
Function



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