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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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LRI64 Scheda tecnica(PDF) 9 Page - STMicroelectronics |
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LRI64 Scheda tecnica(HTML) 9 Page - STMicroelectronics |
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9 / 52 page  LRI64 Signal description 9/52 2 Signal description AC1, AC0 The pads for the Antenna Coil. AC1 and AC0 must be directly bonded to the antenna. 3 Commands The LRI64 supports the following commands: 3.1 Inventory Used to perform the anti-collision sequence. The LRI64 answers to the Inventory command when all of the 64 bits of the UID have been correctly written. 3.2 Stay Quiet Used to put the LRI64 in Quiet mode. In this mode, the LRI64 only responds to commands in Addressed mode. 3.3 Read Block Used to output the 8 bits of the selected block. 3.4 Write Block Used to write a new 8-bit value in the selected block, provided that the block is not locked. This command can be issued only once to each block. 3.5 Get_System_Info Used to allow the application system to identify the product. It gives the LRI64 memory size, and IC reference (IC_ID). 3.6 Initial Dialogue for Vicinity Cards The dialogue between the Vicinity Coupling Device (VCD) and the LRI64 is conducted according to a technique called Reader Talk First (RTF). This involves the following sequence of operations: 1. activation of the LRI64 by the RF operating field of the VCD 2. transmission of a command by the VCD 3. transmission of a response by the LRI64 |
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