SRIX4K datasheet(29/50 Pages) STMICROELECTRONICS

部件名	SRIX4K

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

PDF	50 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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29 / 50 page

SRIX4K

SRIX4K commands

29/50

9.1

INITIATE() command

Command Code = 06h - 00h

INITIATE() is used to initiate the anticollision sequence of the SRIX4K. On receiving the

INITIATE() command, all SRIX4K 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 SRIX4K 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 SRIX4K

Figure 25.

INITIATE Frame Exchange Between Reader and SRIX4K

SOF

INITIATE

CRCL

CRCH

EOF

AI07670

06h

00h

8 bits

SOF

Chip_ID

CRCL

CRCH

EOF

AI07671

8 bits

AI07672b

Reader

SRIX4K

SOF

Chip_ID

CRCL CRCH EOF

<-t0-><-t1->

SOF

06h

CRCL

CRCH EOF

00h

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