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M24LR16E-R 데이터시트(PDF) 99 Page - STMicroelectronics |
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M24LR16E-R 데이터시트(HTML) 99 Page - STMicroelectronics |
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99 / 143 page ![]() M24LR16E-R Command codes Doc ID 018932 Rev 8 99/143 26.12 Get System Info When receiving the Get System Info command, the M24LR16E-R sends back its information data in the response.The Option_flag is not supported. The Get System Info can be issued in both Addressed and Non Addressed modes. The Protocol_extension_flag can be set to 0 or 1. Table 70 and Table 72 show M24LR16E-R response to the Get System Info command depending on the value of the Protocol_extension_flag. Request parameter: ● Request flags ● UID (optional) Response parameters: ● Information flags set to 0Ch. DSFID, AFI and IC reference fields are present. ● UID code on 64 bits ● DSFID value ● AFI value ● M24LR16E-R IC reference: the 8 bits are significant. Table 69. Get System Info request format Request SOF Request _flags Get System Info UID(1) 1. Gray means that the field is optional. CRC16 Request EOF 8 bits 2Bh 64 bits 16 bits Table 70. Get System Info response format when Protocol_extension_flag = 0 and Error_flag is NOT set Response SOF Response _flags Information flags UID DSFID AFI IC ref. CRC16 Response EOF 00h 0Bh 64 bits 8 bits 8 bits 4Eh 16 bits Table 71. Get System Info response format when Protocol_extension_flag = 1 and Error_flag is NOT set Response SOF Response _flags Information flags UID DSFID AFI Memory size IC ref. CRC 16 Response EOF 00h 0Fh 64 bits 8 bits 8 bits 0301FF 4Eh 16 bits |
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