LRI512 datasheet(38/54 Pages) STMICROELECTRONICS

Part #	LRI512

Description	Memory TAG IC 512 bit High Endurance EEPROM 13.56MHz, ISO 15693 Standard Compliant with E.A.S.

PDF	54 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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38 / 54 page

LRI512

38/54

DESACTIVATE EAS

Command Code = 0xA1

When receiving the De-activate EAS Request, the

LRI512 reset the non-volatile EAS bit. The

Option_Flag is not supported.

During the write cycle tW, no modulation (never

100% nor 10%) shall occur. If so, the LRI512 may

not reset correctly the EAS bit. The tW delay is a

multiple of t1nominal.

Request parameter (Table 49):

– UID (Optional)

Response parameter (Table 50):

– No parameter.

Response parameter (Table 51):

– Error Code as Error_Flag is set

Table 49. De-activate EAS Request Format

Table 50. De-activate EAS Response Format when Error Flag is NOT Set

Table 51. De-activate EAS Response Format when Error Flag is Set

Figure 42. DE-ACTIVATE EAS Frame Exchange between VCD and LRI512

Request

SOF

Request

Flags

De-activate

EAS

IC Mfg code

UID

CRC16

Request

EOF

8 bits

0xA1

0x02

64 bits

16 bits

Response SOF

Response_Flags

CRC16

Response EOF

8 bits

16 bits

Response SOF

Response_Flags

Error Code

CRC16

Response EOF

8 bits

16 bits

AI06840

VCD

LRI512

EOF

SOF

EOF

SOF

Write sequence when error

SOF

EOF

De-activate

EAS Request

De-activate

EAS Response

De-activate

EAS Response

LRI512 Datasheet(PDF) 38 Page - STMicroelectronics

LRI512 Datasheet(HTML) 38 Page - STMicroelectronics

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