SRI2K datasheet(27/45 Pages) STMICROELECTRONICS

부품명	SRI2K

상세설명	13.56 MHz short-range contactless memory chip with 2048-bit EEPROM and anticollision functions

PDF	45 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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27 / 45 page

SRI2K

SRI2K commands

Doc ID 15779 Rev 3

27/45

8.1

Initiate() command

Command code = 06h - 00h

Initiate() is used to initiate the anticollision sequence of the SRI2K. On receiving the Initiate()

command, all SRI2K devices in Ready state switch to Inventory state, set a new 8-bit

Chip_ID random value, and return their Chip_ID value. This command is useful when only

one SRI2K in Ready state is present in the reader field range. It speeds up the Chip_ID

search process. The Chip_slot_number is not used during Initiate() command access.

Figure 23.

Initiate request format

Request parameter:

●

No parameter

Figure 24.

Initiate response format

Response parameter:

●

Chip_ID of the SRI2K

Figure 25.

Initiate frame exchange between reader and SRI2K

SOF

Initiate

CRCL

CRCH

EOF

AI07670b

06h

00h

8 bits

SOF

Chip_ID

CRCL

CRCH

EOF

AI07671

8 bits

ai15581

Reader

SRI2K

SOF

Chip_ID

CRCL CRCH EOF

<-t0-><-t1->

SOF

06h

CRCL

CRCH EOF

00h

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