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ST25TV02K 数据表(PDF) 58 Page - STMicroelectronics |
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ST25TV02K 数据表(HTML) 58 Page - STMicroelectronics |
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58 / 90 page  Table 109. Reset EAS format when Error_flag is set Response SOF Response_flags CRC16 request EOF - 8 bits 16 bits - Response parameter: • • Error code as Error_flag is set – 03h: command option is not supported – 12h: the EAS configuration cannot be changed as eith the security session is closed, or locked – 13h: the EAS configuration was not successfully programmed 6.4.26 Enable EAS ST25TV02K/512 will respond with the Telegram or the EAS ID contents when the Enable EAS command is received depending on the option flag bit, and the EAS ID in the command • If the option flag of the Enable EAS command is set to “0”, the ST25TV02K/512 expect that the reader does not transmit the EAS ID Mask length and EAS ID value. The ST25TV02K/512 will respond with the EAS Telegram • If the option flag of the EAS Enable command is set to “1”, the ST25TV02K/512 expect the reader transmits the EAS ID Mask length and EAS ID value, and will present the EAS ID or the Telegram depending on the mask length value – If Mask == 00h, the ST25TV02K/512 return its 16-bit EAS ID – If Mask != 00h, the Mask identifies how many bits of the EAS ID are valid. Only EAS Mask length values 0, 8 and 16 are supported. The ST25TV02K/512 will compare the EAS ID value of the reader’s command with its own EAS ID. If they match, the ST25TV02K/512 return its EAS telegram. If they mismatch the ST25TV02K/512 will ignore the command. This is a selective EAS. The enable command is answered without error by ST25TV02K/512 only if the Set command has been executed before. Otherwise, the ST25TV02K/512 remain silent. The EAS telegram is returned starting with the LSB, which is transmitted first, read from left to right. Table 110. Enable EAS request format Request SOF Request_flags Enable EAS IC Mfg code UID (1) EAS ID Mask (2) EAD ID(2) CRC16 request EOF - 8 bits A5h 02h 64 bits 8 bits 0, 8 or 16 bits 16 bits - 1. The field is optional. 2. Only if the option flag of the EAS Enable command is set to “1” Request parameters: • Request flags • UID (optional) Table 111. Enable EAS response format when Error_flag is NOT set Response SOF Response_flags EAS Telegram (1) EAS ID(1) CRC16 request EOF - 8 bits 2 up to 256 bits 16 bits 16 bits - 1. Available for the proper Option_flag and Mask settings. Response parameter: • No parameter ST25TV02K ST25TV512 RF commands DS12074 - Rev 11 page 58/90 |
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