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SRIX4K データシート(PDF) 31 Page - STMicroelectronics

部品番号 SRIX4K
部品情報  13.56 MHz short-range contactless memory chip with 4096-bit EEPROM, anticollision and anti-clone functions
PDF  50 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SRIX4K データシート(HTML) 31 Page - STMicroelectronics

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SRIX4K
SRIX4K commands
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9.3
SLOT_MARKER(SN) command
Command Code = x6h
The SRIX4K must be in INVENTORY state to interpret the SLOT_MARKER(SN) command.
The SLOT_MARKER Byte code is divided into two parts:
–b3 to b0: 4-bit command code
with fixed value 6.
–b7 to b4: 4 bits known as the SLOT_NUMBER (SN). They assume a value
between 1 and 15. The value 0 is reserved by the PCALL16() command.
On receiving the SLOT_MARKER() command, the SRIX4K compares its
CHIP_SLOT_NUMBER value with the SLOT_NUMBER value given in the command code.
If they match, the SRIX4K returns its Chip_ID value. If not, the SRIX4K does not send any
response.
The SLOT_MARKER() command, used together with the PCALL16() command, allows the
reader to search for all the Chip_IDs when there are more than one SRIX4K device in
INVENTORY state present in the reader field range.
Figure 29.
SLOT_MARKER request format
Request parameter:
–x: Slot number
Figure 30.
SLOT_MARKER response format
Response parameters:
–
Chip_ID of the SRIX4K
Figure 31.
SLOT_MARKER frame exchange between Reader and SRIX4K
SOF
SLOT_MARKER
CRCL
CRCH
EOF
AI07675
X6h
8 bits
8 bits
SOF
Chip_ID
CRCL
CRCH
EOF
AI07671
8 bits
8 bits
8 bits
SOF
X6h
CRCL
CRCH EOF
AI07676b
Reader
SRIX4K
SOF
Chip_ID
CRCL CRCH
EOF
<-t0-><-t1->



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