SRIX4K datasheet(34/50 Pages) STMICROELECTRONICS

부품명	SRIX4K

상세설명	13.56 MHz short-range contactless memory chip with 4096-bit EEPROM, anticollision and anti-clone functions

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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SRIX4K commands

SRIX4K

34/50

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

AI07680

No Response

SOF

0Ch

CRCL

CRCH EOF

AI07681

Reader

SRIX4K

No Response

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