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DP83815 Datasheet(PDF) 13 Page - National Semiconductor (TI) |
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DP83815 Datasheet(HTML) 13 Page - National Semiconductor (TI) |
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13 / 108 page  13 www.national.com 3.0 Functional Description DP83815 consists of a MAC/BIU (Media Access Controller/Bus Interface Unit), a physical layer interface, SRAM, and miscellaneous support logic. The MAC/BIU includes the PCI bus, BIOS ROM and EEPROM interfaces, and an 802.3 MAC. The physical layer interface used is a single-port version of the 3.3V DsPhyter. Internal memory consists of one - 0.5 KB and two - 2 KB SRAM blocks. Figure 3-1 DP83815 Functional Block Diagram MAC/BIU Interface SRAM 25 MHz Clk MII RX MII TX MII Mgt BIOS ROM Cntl BIOS ROM Data PCI AD PCI CNTL PCI CLK 3V DSP Physical Layer Logic RX-2 KB SRAM TX-2 KB TPRDP/M EEPROM/LEDs TPTDP/M DP83815 RAM BIST Logic SRAM RXFilter .5 KB |
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