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Document

AC208-DS04-405-R

AC208

Preliminary Data Sheet

07/08/02

Section 2: Pins................................................................................................................... 12

Pin Descriptions ......................................................................................................................................... 12

Section 3: Register Descriptions ..................................................................................... 18

Register Description................................................................................................................................... 18

Bridge Configuration Register ............................................................................................................... 22

PHY Configuration Register .................................................................................................................. 23

PHY Identifier 2 Register ....................................................................................................................... 25

Auto-Negotiation Advertisement Register ............................................................................................. 25

Auto-Negotiation Expansion Register.................................................................................................... 26

Cable Length Register........................................................................................................................... 30

Power Management Register ................................................................................................................ 31

LED Effect with Partition/Isolation Event ...............................................................................................33

LED Effect with Link Event .................................................................................................................... 33

LED Effect with Auto-Negotiating Event ................................................................................................ 34

LED Register Control Mode...................................................................................................................35

LED Display Matrix .....................................................................................................................................38

System Considerations.......................................................................................................................... 38

Section 4: Electrical Characteristics ............................................................................... 39

Absolute Maximum Ratings....................................................................................................................... 39

Operating Range......................................................................................................................................... 39

REFCLK Pins ........................................................................................................................................ 40

I/O Characteristics—LED Pins .............................................................................................................. 40

10BASE-T Transceiver Characteristics ................................................................................................. 41

Section 5: Digital Timing Characteristics ....................................................................... 42

Power on Reset...........................................................................................................................................42

PHY MDC/MDIO Interface........................................................................................................................... 43

100 MBPS Repeater BackPlane Receive/Transmit Timing .....................................................................44

10 MBPS Repeater BackPlane Receive/Transmit Timing ....................................................................... 45

EEPROM Interface Timing .........................................................................................................................46

LED Timing..................................................................................................................................................47

TX Application Termination ....................................................................................................................... 48