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DM8203 Datasheet(PDF) 6 Page - Davicom Semiconductor, Inc. |
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DM8203 Datasheet(HTML) 6 Page - Davicom Semiconductor, Inc. |
6 / 63 page DM8203 2-port switch with MII / RMII Interface 6 Preliminary datasheet DM8203-15-DS-P05 October 23, 2008 9.3.3 Serial Management Interface .............................................................................................................................. 49 9.3.4 Management Interface - Read Frame Structure............................................................................................... 49 9.3.5 Management Interface - Write Frame Structure............................................................................................... 49 9.4 Internal PHY functions .................................................................................................................................................. 50 9.4.1 100Base-TX Operation......................................................................................................................................... 50 9.4.1.1 4B5B Encoder .................................................................................................................................................... 50 9.4.1.2 Scrambler............................................................................................................................................................ 50 9.4.1.3 Parallel to Serial Converter .............................................................................................................................. 50 9.4.1.4 NRZ to NRZI Encoder ....................................................................................................................................... 50 9.4.1.5 MLT-3 Converter................................................................................................................................................ 50 9.4.1.6 MLT-3 Driver....................................................................................................................................................... 50 9.4.1.7 4B5B Code Group ............................................................................................................................................. 51 9.4.2 100Base-TX Receiver .......................................................................................................................................... 52 9.4.2.1 Signal Detect ...................................................................................................................................................... 52 9.4.2.2 Adaptive Equalization........................................................................................................................................ 52 9.4.2.3 MLT-3 to NRZI Decoder.................................................................................................................................... 52 9.4.2.4 Clock Recovery Module .................................................................................................................................... 52 9.4.2.5 NRZI to NRZ ....................................................................................................................................................... 52 9.4.2.6 Serial to Parallel ................................................................................................................................................. 52 9.4.2.7 Descrambler ....................................................................................................................................................... 52 9.4.2.8 Code Group Alignment...................................................................................................................................... 53 9.4.2.9 4B5B Decoder .................................................................................................................................................... 53 9.4.3 10Base-T Operation ............................................................................................................................................. 53 9.4.4 Collision Detection ................................................................................................................................................ 53 9.4.5 Carrier Sense......................................................................................................................................................... 53 9.4.6 Auto-Negotiation.................................................................................................................................................... 53 9.5 HP Auto-MDIX Functional Descriptions ..................................................................................................................... 53 10. DC AND AC ELECTRICAL CHARACTERISTICS ..................................................... 55 10.1 Absolute Maximum Ratings ........................................................................................................................................ 55 10.2 Operating Conditions ................................................................................................................................................... 55 |
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