DM9006 查看數據表（PDF） - Davicom Semiconductor, Inc.

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DM9006

10/100 Mbps 2-port Ethernet Switch Controller with General Processor Interface

Davicom Semiconductor, Inc. 

DM9006

2-port Switch with Processor Interface

9.2.18 Port Security........................................................................................................................................... 63

9.2.19 IPv6 MLD Snooping ............................................................................................................................... 63

9.2.20 Spanning Tree Protocol Support............................................................................................................ 64

9.3 Internal PHY functions .................................................................................................................................. 65

9.3.1 100Base-TX Operation ............................................................................................................................ 65

9.3.1.1 4B5B Encoder ....................................................................................................................................... 65

9.3.1.2 Scrambler .............................................................................................................................................. 65

9.3.1.3 Parallel to Serial Converter ................................................................................................................... 65

9.3.1.4 NRZ to NRZI Encoder ........................................................................................................................... 65

9.3.1.5 MLT-3 Converter ................................................................................................................................... 65

9.3.1.6 MLT-3 Driver ......................................................................................................................................... 65

9.3.1.7 4B5B Code Group................................................................................................................................. 66

9.3.2 100Base-TX Receiver .............................................................................................................................. 67

9.3.2.1 Signal Detect ......................................................................................................................................... 67

9.3.2.2 Adaptive Equalization............................................................................................................................ 67

9.3.2.3 MLT-3 to NRZI Decoder........................................................................................................................ 67

9.3.2.4 Clock Recovery Module ........................................................................................................................ 67

9.3.2.5 NRZI to NRZ ......................................................................................................................................... 67

9.3.2.6 Serial to Parallel .................................................................................................................................... 67

9.3.2.7 Descrambler .......................................................................................................................................... 67

9.3.2.8 Code Group Alignment.......................................................................................................................... 68

9.3.2.9 4B5B Decoder....................................................................................................................................... 68

9.3.3 10Base-T Operation................................................................................................................................. 68

9.3.4 Collision Detection ................................................................................................................................... 68

9.3.5 Carrier Sense ........................................................................................................................................... 68

9.3.6 Auto-Negotiation ...................................................................................................................................... 68

10. DC AND AC ELECTRICAL CHARACTERISTICS ..................................................... 69

10.1 Absolute Maximum Ratings ....................................................................................................................... 69

10.2 Operating Conditions.................................................................................................................................. 69

10.3 DC Electrical Characteristics ..................................................................................................................... 70

8

Preliminary datasheet

DM9006-13-DS-P01

September 1, 2009

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