LRI512 Просмотр технического описания (PDF) - STMicroelectronics

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LRI512

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

STMicroelectronics 

LRI512

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

Request

SOF

Request

Flags

De-activate

EAS

IC Mfg code

8 bits

0xA1

0x02

UID

64 bits

CRC16

16 bits

Request

EOF

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

Response SOF

Response_Flags

CRC16

8 bits

16 bits

Response EOF

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

Response SOF Response_Flags

Error Code

CRC16

8 bits

8 bits

16 bits

Response EOF

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

VCD

LRI512

LRI512

SOF De-activate EOF

EAS Request

t1

SOF

De-activate

EAS Response

EOF

Write sequence when error

SOF De-activate EOF

tw

t1

EAS Response

AI06840

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