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LU3X54FT Datasheet(PDF) 3 Page - Agere Systems |
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LU3X54FT Datasheet(HTML) 3 Page - Agere Systems |
3 / 54 page Lucent Technologies Inc. 3 Data Sheet LU3X54FT July 2000 QUAD-FET for 10Base-T/100Base-TX/FX Table of Contents Tables Page Table 19. MR28—Device-Specific Register 1 (Status Register) Bit Descriptions...................................................36 Table 20. MR29—Device-Specific Register 2 (100 Mbits/s Control) Bit Descriptions ............................................37 Table 21. MR30—Device-Specific Register 3 (10 Mbits/s Control) Bit Descriptions ..............................................38 Table 22. MR31—Device-Specific Register 4 (Quick Status) Bit Descriptions .......................................................39 Table 23. Output Pins .............................................................................................................................................40 Table 24. LU3X54FT Modes...................................................................................................................................40 Table 25 . Absolute Maximum Ratings ...................................................................................................................41 Table 26 . Operating Conditions .............................................................................................................................41 Table 27. dc Characteristics ...................................................................................................................................41 Table 28. Thermal Characteristics..........................................................................................................................42 Table 29. MII Management Interface Timing (25 pF Load).....................................................................................43 Table 30. MII Data Timing (25 pF Load) .................................................................................................................44 Table 31. Serial 10 Mbits/s Timing for TPIN, CRS, and RX_CLK...........................................................................46 Table 32. Serial 10 Mbits/s Timing for TX_EN, TPOUT, CRS, and RX_CLK..........................................................46 Table 33. Serial 10 Mbits/s Timing for TX_EN, TPIN, and COL .............................................................................47 Table 34. Serial 10 Mbits/s Timing for RX_CLK, CRS, RXD, TX_CLK, TX_EN, and TXD (25 pF Load)................48 Table 35. Serial 10 Mbits/s Timing for RX_CLK and TX_CLK (25 pF Load) ..........................................................49 Table 36. 100 Mbits/s MII Transmit Timing .............................................................................................................50 Table 37. 100 Mbits/s MII Receive Timing..............................................................................................................51 Figures Page Figure 1. LU3X54FT Device Overview .....................................................................................................................7 Figure 2. LU3X54FT Single-Channel Detail Functions ............................................................................................ 8 Figure 3. Typical Single-Channel Twisted-Pair (TP) Interface .................................................................................. 9 Figure 4. Typical Single-Channel Fiber-Optic Interface ..........................................................................................10 Figure 5. Smart 10/100 Mbits/s Bused MII Mode...................................................................................................11 Figure 6. Separate 10/100 Mbits/s Bused MII Mode ..............................................................................................12 Figure 7. LU3X54FT Pinout for Normal MII Mode..................................................................................................13 Figure 8. LU3X54FT Pinout for Bused MII Mode ...................................................................................................14 Figure 9. Thermal Characteristics ..........................................................................................................................42 Figure 10. MDIO Input Timing ................................................................................................................................43 Figure 11. MDIO Output Timing .............................................................................................................................43 Figure 12. MDIO During TA (Turnaround) of a Read Transaction ..........................................................................43 Figure 13. MII Timing Requirements for LU3X54FT ..............................................................................................45 Figure 14. Serial 10 Mbits/s Timing for TPIN, CRS, and RX_CLK .........................................................................46 Figure 15. Serial 10 Mbits/s Timing for TX_EN, TPOUT, CRS, and RX_CLK........................................................46 Figure 16. Serial 10 Mbits/s Timing for TX_EN, TPIN, and COL ...........................................................................47 Figure 17. Serial 10 Mbits/s Timing for RX_CLK, CRS, RXD, TX_CLK, TX_EN, and TXD ...................................48 Figure 18. Serial 10 Mbits/s Timing Diagram for RX_CLK and TX_CLK ...............................................................49 Figure 19. 100 Mbits/s MII Transmit Timing ...........................................................................................................50 Figure 20. 100 Mbits/s MII Receive Timing ............................................................................................................51 (continued) |
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