VSC8221 datasheet(12/138 Pages) MICROSEMI

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VSC8221

Data Sheet

VMDS-10106 Revision 4.1

December 2006

12 of 13

Tables

Table 1.

Specifications and Documentation ........................................................................................................ 4

Table 2.

Data Sheet Conventions ........................................................................................................................ 5

Table 3.

Signal Type Descriptions ..................................................................................................................... 15

Table 4.

Configuration and Control Signals ...................................................................................................... 16

Table 5.

System Clock interface Signals (SCi) ................................................................................................. 17

Table 6.

Regulator Control and Analog Bias Signals ....................................................................................... 18

Table 7.

JTAG Access Port ................................................................................................................................ 19

Table 8.

Serial Management interface Signals ................................................................................................. 20

Table 9.

EEPROM interface Signals ................................................................................................................. 21

Table 10. LED interface Signals ........................................................................................................................... 22

Table 11.

Serial MAC interface Signals ............................................................................................................... 22

Table 12. Twisted Pair interface Signals ............................................................................................................. 24

Table 13. Power Supply and Ground Connections ............................................................................................ 25

Table 14. No Connects ......................................................................................................................................... 25

Table 15. Power Supply and Associated Functional Signals ............................................................................. 26

Table 16. MDi Wiring Pair Combinations ............................................................................................................ 30

Table 17. SMi Pin Descriptions - MSA Mode ...................................................................................................... 33

Table 18. SMi Pin Descriptions - iEEE Mode ...................................................................................................... 38

Table 19. SMi Frame Format ............................................................................................................................... 39

Table 20. LED Function Assignments ................................................................................................................. 41

Table 21. Parallel LED Functions ........................................................................................................................ 41

Table 22. LED Output Options ............................................................................................................................. 43

Table 23. JTAG Device identification Register Description ................................................................................ 44

Table 24. JTAG interface instruction Codes ........................................................................................................ 45

Table 25. CMODE Pull-up/Pull-down Resistor Values ....................................................................................... 53

Table 26. CMODE Bit to PHY Operating Condition Parameter Mapping ......................................................... 54

Table 27. PHY Operating Condition Parameter Description .............................................................................. 54

Table 28. Configuration EEPROM Data Format ................................................................................................ 58

Table 29. PHY Operating Modes ......................................................................................................................... 62

Table 30. Register Set Nomenclature ................................................................................................................. 64

Table 31. PHY Register Bit Types ....................................................................................................................... 64

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