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SRIX4K データシート(PDF) 32 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) 32 Page - STMicroelectronics

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SRIX4K commands
SRIX4K
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9.4
SELECT(Chip_ID) command
Command Code = 0Eh
The SELECT() command allows the SRIX4K to enter the SELECTED state. Until this
command is issued, the SRIX4K will not accept any other command, except for INITIATE(),
PCALL16() and SLOT_MARKER(). The SELECT() command returns the 8 bits of the
Chip_ID value. An SRIX4K in SELECTED state, that receives a SELECT() command with a
Chip_ID that does not match its own is automatically switched to DESELECTED state.
Figure 32.
SELECT request format
Request parameter:
–
8-bit Chip_ID stored during the anticollision sequence
Figure 33.
SELECT Response Format
Response parameters:
–
Chip_ID of the selected tag. Must be equal to the transmitted Chip_ID
Figure 34.
SELECT frame exchange between Reader and SRIX4K
SOF
SELECT
CRCL
CRCH
EOF
AI07677
0Eh
8 bits
8 bits
8 bits
Chip_ID
SOF
Chip_ID
CRCL
CRCH
EOF
AI07671
8 bits
8 bits
8 bits
AI07678b
Reader
SRIX4K
SOF
Chip_ID
CRCL CRCH EOF
<-t0-><-t1->
SOF
0Eh
CRCL
CRCH EOF
Chip_ID



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