DM9013EP datasheet(8/75 Pages) DAVICOM

Part #	DM9013EP

Description	10/100 Mbps 3-port Ethernet Switch Controller with General Processor Interface

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Manufacturer	DAVICOM [Davicom Semiconductor, Inc.]

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DM9013

3-port switch with Processor Interface

8

Preliminary datasheet

DM9013-15-DS-P03

April 9, 2009

9.2.13.3 Tag/Untag ........................................................................................................................................... 57

9.2.14 Priority Support ...................................................................................................................................... 58

9.2.14.1 Port-Based Priority .............................................................................................................................. 58

9.2.14.2 802.1p-Based Priority.......................................................................................................................... 58

9.2.14.3 DiffServ-Based Priority........................................................................................................................ 58

9.3 MII Interface.................................................................................................................................................... 59

9.3.1 MII data interface ..................................................................................................................................... 59

9.3.2 MII Serial Management ............................................................................................................................ 59

9.3.3 Serial Management Interface ................................................................................................................... 60

9.3.4 Management Interface - Read Frame Structure ...................................................................................... 60

9.3.5 Management Interface - Write Frame Structure ...................................................................................... 60

9.4 Internal PHY functions .................................................................................................................................. 61

9.4.1 100Base-TX Operation ............................................................................................................................ 61

9.4.1.1 4B5B Encoder ....................................................................................................................................... 61

9.4.1.2 Scrambler.............................................................................................................................................. 61

9.4.1.3 Parallel to Serial Converter ................................................................................................................... 61

9.4.1.4 NRZ to NRZI Encoder ........................................................................................................................... 61

9.4.1.5 MLT-3 Converter ................................................................................................................................... 61

9.4.1.6 MLT-3 Driver ......................................................................................................................................... 61

9.4.1.7 4B5B Code Group................................................................................................................................. 62

9.4.2 100Base-TX Receiver .............................................................................................................................. 63

9.4.2.1 Signal Detect......................................................................................................................................... 63

9.4.2.2 Adaptive Equalization............................................................................................................................ 63

9.4.2.3 MLT-3 to NRZI Decoder........................................................................................................................ 63

9.4.2.4 Clock Recovery Module ........................................................................................................................ 63

9.4.2.5 NRZI to NRZ ......................................................................................................................................... 63

9.4.2.6 Serial to Parallel .................................................................................................................................... 63

9.4.2.7 Descrambler.......................................................................................................................................... 63

9.4.2.8 Code Group Alignment.......................................................................................................................... 64

9.4.2.9 4B5B Decoder....................................................................................................................................... 64

9.4.3 10Base-T Operation................................................................................................................................. 64

9.4.4 Collision Detection ................................................................................................................................... 64

9.4.5 Carrier Sense ........................................................................................................................................... 64

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DM9013EP Datasheet(PDF) 8 Page - Davicom Semiconductor, Inc.

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