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

ACTIVATE EAS

Command Code = 0xA0

When receiving the Activate EAS Request, the

LRI512 set 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 set correctly the EAS bit. The tW delay is a mul-

tiple of t1nominal.

Request parameter (Table 46):

– UID (Optional)

Response parameter (Table 47):

– No parameter.

Response parameter (Table 48):

– Error Code as Error_Flag is set

Table 46. Activate EAS Request Format

Request

SOF

Request

Flags

Activate EAS IC Mfg code

8 bits

0xA0

0x02

UID

64 bits

CRC16

16 bits

Request

EOF

Table 47. Activate EAS Response Format when Error Flag is NOT Set

Response SOF

Response_Flags

CRC16

8 bits

16 bits

Response EOF

Table 48. 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 41. ACTIVATE EAS Frame Exchange between VCD and LRI512

VCD

LRI512

LRI512

SOF Activate EAS EOF

Request

SOF

t1

Activate EAS

Response

EOF

Write sequence when error

SOF Activate EAS EOF

tw

t1

Response

AI06839

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