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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADIN1111BCPZ-R7 датащи(PDF) 36 Page - Analog Devices |
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ADIN1111BCPZ-R7 датащи(HTML) 36 Page - Analog Devices |
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36 / 109 page  Data Sheet ADIN1111 MAC SPI analog.com Rev. A | 36 of 109 A chunk is the basic element of data transactions, and they are composed of 4 bytes of overhead plus the configured payload size. Data transactions consist of an equal number of transmit and receive chunks. Chunks in both transmit and receive directions may or may not contain valid frame data independent from each other, allowing for the simultaneous transmission and reception of different length frames. The data header of the chunk in transmit frames, and the data footer in receive frames, indicate which bytes of the payload contain valid frame data. For full information on the OPEN Alliance SPI protocol used by the ADIN1111, refer to OPEN Alliance 10BASE-T1x MAC-PHY Serial Interface v1.0. Note that CS has to be deasserted between data transactions and control transactions, as shown in Figure 28. Figure 28. Ethernet Data Frame Transfer Followed by Control Transfer |
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