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Dm900a module based on FPGA
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DM9000A profile main characteristics DM9000A Ethernet media, the media access layer (MAC) and physical layer (PHY) functions, including MAC data frame Assembly/split between transmitter and receiver, address identifies, CRC encoding/checksum, MLT-3 Encoder, receiver noise suppression, pulse shaping, time-out retransmission output, link integrity test, Signal polarity detection and correction and so on. &Nbsp; works DM9000A and microprocessors to 8-bit or 16-bit bus connection and optionally run in simplex or duplex mode. When the system is powered on, processor bus configuration DM9000A network control register (NCR), the interrupt register (ISR), to complete the initialization DM9000A. Subsequently, the DM9000A into the data receiving wait States. &Nbsp; Dang processor to to Ethernet sent data frame Shi, first will data packaged into UDP or IP data package, and through 8 bit or 16 bit
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