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SRIX4K データシート(PDF) 30 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) 30 Page - STMicroelectronics

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SRIX4K commands
SRIX4K
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9.2
PCALL16() command
Command Code = 06h - 04h
The SRIX4K must be in INVENTORY state to interpret the PCALL16() command.
On receiving the PCALL16() command, the SRIX4K first generates a new random
CHIP_SLOT_NUMBER value (in the 4 least significant bits of the Chip_ID).
CHIP_SLOT_NUMBER can take on a value between 0 an 15 (1111b). The value is retained
until a new PCALL16() or INITIATE() command is issued, or until the SRIX4K is powered off.
The new CHIP_SLOT_NUMBER value is then compared with the value 0000b. If they
match, the SRIX4K returns its Chip_ID value. If not, the SRIX4K does not send any
response.
The PCALL16() command, used together with the SLOT_MARKER() 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 26.
PCALL16 request format
Request parameter:
–
No parameter
Figure 27.
PCALL16 response format
Response parameter:
–
Chip_ID of the SRIX4K
Figure 28.
PCALL16 frame exchange between Reader and SRIX4K
SOF
PCALL16
CRCL
CRCH
EOF
AI07673
06h
04h
8 bits
8 bits
SOF
Chip_ID
CRCL
CRCH
EOF
AI07671
8 bits
8 bits
8 bits
SOF
06h
CRCL
CRCH EOF
AI07674b
Reader
SRIX4K
SOF
Chip_ID
CRCL CRCH
EOF
<-t0-><-t1->
04h



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