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
REALTEK [ Realtek Semiconductor Corp. ]
