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Document

AC208-DS04-405-R

Preliminary Data Sheet

AC208

07/08/02

Section 1: Functional Description...................................................................................... 1

Functional Description ................................................................................................................................1

Clocks, Reset, and Power Management Functions .................................................................................. 1

Media Independent Interface .................................................................................................................. 2

Scrambler................................................................................................................................................ 2

Parallel to Serial and NRZ—NRZI to MLT-3 Conversion ........................................................................ 2

PLL Clock Synthesizer............................................................................................................................ 3

Receive Function ......................................................................................................................................... 3

Adaptive Equalizer .................................................................................................................................. 3

Link Monitor ............................................................................................................................................ 4

Baseline Wander Compensation ............................................................................................................ 4

Clock/Data Recovery .............................................................................................................................. 4

Decoder/Descrambler ............................................................................................................................. 4

Auto-Negotiation and Miscellaneous Functions ....................................................................................... 5

Parallel Detection .................................................................................................................................... 5

Carrier Sense/RXDV for MII Port Only.................................................................................................... 5

Cable Length Monitor .................................................................................................................................. 5

Media Independent Interface .................................................................................................................. 6

Forwarding Scheme ................................................................................................................................ 6

Address Recognition ............................................................................................................................... 6

Reset and Restart ................................................................................................................................... 6

Media Access Control ............................................................................................................................. 6

Hardware Configuration .......................................................................................................................... 7

Software Configuration ........................................................................................................................... 7

LEDs ....................................................................................................................................................... 7

Address Table ......................................................................................................................................... 9

Routing Decision ................................................................................................................................... 10

Learning Process .................................................................................................................................. 10

Aging Time ............................................................................................................................................ 10

Forwarding Scheme .............................................................................................................................. 11

Bridge Buffer Management and Queues .............................................................................................. 11