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SR176 bảng dữ liệu(PDF) 15 Page - STMicroelectronics

tên linh kiện SR176
Giải thích chi tiết về linh kiện  13.56 MHz, 176-bit short range contactless user EEPROM with 64-bit Unique ID
PDF  35 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SR176 bảng dữ liệu(HTML) 15 Page - STMicroelectronics

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SR176
Device operations (instructions)
15/35
5.1
INITIATE()
Command Code = 06h,00h
Prior to any other command, the SR176 must be activated by an INITIATE command. All
other commands sent to the SR176 before the INITIATE are ignored. In response to
receiving the INITIATE command, the SR176 sends back its Chip_ID, using an 8-bit format
(Figure 17).
Upon receiving a valid INITIATE command, the SR176 switches to the ACTIVE state, where
it will not answer to any new INITIATE command. Once In the ACTIVE state, the SR176 will
remain in this state until it receives a valid SELECT command.
Request parameters (Figure 14):
●
none
Response parameters (Figure 15):
●
Chip_ID (formatted as shown in Figure 16)
Figure 14.
INITIATE request format
Figure 15.
INITIATE response format
Figure 16.
8-bit Chip_ID format
Figure 17.
INITIATE frame exchange between Reader and SR176
SOF
INITIATE
CRCL
CRCH
EOF
AI07670B
06h
00h
8 bits
8 bits
SOF
Chip_ID
CRCL
CRCH
EOF
AI07701B
4 reserved bits
+ 4-bit ID
8 bits
8 bits
b7
b6
b5
b4
b3
b2
b1
b0
AI07700B
Reserved bits (block 15)
b3
Block 15
b0
4-bit Chip_ID of the SR176
AI09783
Reader
SR176
SOF
Chip_ID
CRCL CRCH EOF
SOF
06h
CRCL
CRCH
EOF
00h
t0
t1



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