SRI512_08 datasheet(34/47 Pages) STMICROELECTRONICS

부품명	SRI512

상세설명	13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision functions

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제조업체	STMICROELECTRONICS [STMicroelectronics]

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SRI512 commands

SRI512

34/47

8.6

Reset_to_inventory() command

Command code = 0Ch

On receiving the Reset_to_inventory() command, all SRI512 devices in Selected state

revert to Inventory state. The concerned SRI512 devices are thus resubmitted to the

anticollision sequence. This command is useful when two SRI512 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 SRI512 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 SRI512

SOF

Reset_to_inventory

CRCL

CRCH

EOF

AI07682b

0Ch

8 bits

AI07680

No Response

SOF

0Ch

CRCL

CRCH EOF

AI10947

Reader

SRI512

No Response

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