RTL8208B Ver la hoja de datos (PDF) - Realtek Semiconductor

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RTL8208B

SINGLE-CHIP OCTAL 10/100BASE-TX/FX PHY TRANSCEIVER

Realtek Semiconductor 

RTL8208B-LF/RTL8208BF-LF

Datasheet

List of Figures

FIGURE 1. PIN ASSIGNMENTS (RTL8208B-LF) .............................................................................................................................3

FIGURE 2. PIN ASSIGNMENTS (RTL8208BF-LF)...........................................................................................................................4

FIGURE 3. RMII SIGNAL DIAGRAM .............................................................................................................................................34

FIGURE 4. SMII SIGNAL DIAGRAM..............................................................................................................................................35

FIGURE 5. SMII RECEPTION ........................................................................................................................................................35

FIGURE 6. SMII TRANSMISSION ..................................................................................................................................................36

FIGURE 7. SS-SMII SIGNAL DIAGRAM ........................................................................................................................................36

FIGURE 8. SS-SMII RECEPTION...................................................................................................................................................37

FIGURE 9. SS-SMII TRANSMISSION.............................................................................................................................................37

FIGURE 10. 3-BIT SERIAL STREAM MODE .....................................................................................................................................39

FIGURE 11. 2-BIT SERIAL STREAM MODE .....................................................................................................................................39

FIGURE 12. EXTERNAL CIRCUIT FOR 3-BIT SERIAL LED MODE....................................................................................................40

FIGURE 13. EXTERNAL CIRCUIT FOR 2-BIT SERIAL LED MODE....................................................................................................40

FIGURE 14. 3-BIT BI-COLOR LED.................................................................................................................................................41

FIGURE 15. SCAN LED TIMING FOR MODE 0 AND MODE 1 ...........................................................................................................42

FIGURE 16. RISE AND FALL TIMING OF THE SCAN_STATUS AND SCAN_LED TRANSITION .....................................................42

FIGURE 17. EXTERNAL CIRCUIT FOR SCAN LED MODE 0 .............................................................................................................43

FIGURE 18. EXTERNAL CIRCUIT FOR SCAN LED MODE 1 .............................................................................................................44

FIGURE 19. EXTERNAL CIRCUIT FOR SCAN LED MODE 2 .............................................................................................................45

FIGURE 20. USING A PNP TRANSISTOR TO TRANSFORM 3.3V INTO 1.8V .....................................................................................47

FIGURE 21. 10BASE-T/100BASE-TX APPLICATION ......................................................................................................................48

FIGURE 22. 100BASE-FX APPLICATION (RTL8208BF-LF ONLY).................................................................................................49

FIGURE 23. RMII RECEIVE TIMING ...............................................................................................................................................53

FIGURE 24. RMII TRANSMIT TIMING ............................................................................................................................................54

FIGURE 25. SMII RECEIVE TIMING ...............................................................................................................................................54

FIGURE 26. SMII TRANSMIT TIMING.............................................................................................................................................55

FIGURE 27. SS-SMII RECEIVE TIMING..........................................................................................................................................55

FIGURE 28. SS-SMII TRANSMIT TIMING.......................................................................................................................................56

FIGURE 29. POWER START UP & INTERNAL RESET SEQUENCE .....................................................................................................56

FIGURE 30. CROSS-SECTION OF 128-PIN QFP ...............................................................................................................................57

Single-Chip Octal 10/100-TX/FX PHY Transceiver

vi

Track ID: JATR-1076-21 Rev. 1.3

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