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DM9000 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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DM9000 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 54 page  DM9000 ISA to Ethernet MAC Controller with Integrated 10/100 PHY Final 1 Version: DM9000-DS-F02 June 26, 2002 1. General Description The DM9000 is a fully integrated and cost-effective single chip Fast Ethernet MAC controller with a general processor interface, a 10/100M PHY and 4K Dword SRAM. It is designed with low power and high performance process that support 3.3V with 5V tolerance. The DM9000 also provides a MII interface to connect HPNA device or other transceivers that support MII interface. The DM9000 supports 8-bit, 16-bit and 32- bit uP interfaces to internal memory accesses for different processors. The PHY of the DM9000 can interface to the UTP3, 4, 5 in 10Base-T and UTP5 in 100Base-TX. It is fully compliant with the IEEE 802.3u Spec. Its auto-negotiation function will automatically configure the DM9000 to take the maximum advantage of its abilities. The DM9000 also supports IEEE 802.3x full- duplex flow control. This programming of the DM9000 is very simple, so user can port the software drivers to any system easily. 2. Block Diagram EEPROM Interface External MII Interface LED TX+/- RX+/- MII Management Control & MII Register Autonegotiation Memory Management RX Machine TX Machine MAC MII 100 Base-TX PCS 100 Base-TX transceiver 10 Base-T Tx/Rx PHYceiver Control &Status Registers Internal SRAM |
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