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SRIX4K データシート(PDF) 34 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) 34 Page - STMicroelectronics

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SRIX4K commands
SRIX4K
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9.6
RESET_TO_INVENTORY() command
Command Code = 0Ch
On receiving the RESET_TO_INVENTORY() command, all SRIX4K devices in SELECTED
state revert to INVENTORY state. The concerned SRIX4K devices are thus resubmitted to
the anticollision sequence. This command is useful when two SRIX4K devices with the
same 8-bit Chip_ID happen to be in SELECTED state at the same time. Forcing them to go
through the anticollision sequence again allows the reader to generates new PCALL16()
commands and so, to set new random Chip_IDs.
The RESET_TO_INVENTORY() command does not generate a response.
All SRIX4K devices that are not in SELECTED state ignore the RESET_TO_INVENTORY()
command.
Figure 38.
RESET_TO_INVENTORY request format
Request parameter:
–
No parameter
Figure 39.
RESET_TO_INVENTORY response format
Figure 40.
RESET_TO_INVENTORY frame exchange between Reader and SRIX4K
SOF
RESET_TO_INVENTORY
CRCL
CRCH
EOF
AI07682
0Ch
8 bits
8 bits
AI07680
No Response
SOF
0Ch
CRCL
CRCH EOF
AI07681
Reader
SRIX4K
No Response



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