AM79C875KI 데이터 시트보기 (PDF) - Advanced Micro Devices
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AM79C875KI Datasheet PDF : 48 Pages
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LIST OF FIGURES
Figure 1. 100 Mbps Reception with No Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Figure 2. 100 Mbps Reception with False Carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Figure 3. 100 Mbps Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Figure 4. Bit Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Figure 5. 10BASE-T Transmit/Receive Data Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Figure 6. MLT-3 Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Figure 7. TX± and RX± Termination for 100BASE-TX and 10BASE-T . . . . . . . . . . . . . . . . . .20
Figure 8. LED Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Figure 9. PHY Management Read and Write Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Figure 10. MLT-3 Receive Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Figure 11. MLT-3 and 10BASE-T Test Load with 1:1 Transformer Ratio . . . . . . . . . . . . . . . . . .37
Figure 12. MLT-3 and 10BASE-T Test Load with 1.25:1 Transformer Ratio . . . . . . . . . . . . . . .37
Figure 13. Near-End 100BASE-TX Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Figure 14. Near-End 10BASE-T Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Figure 15. Recommended PECL Test Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Figure 16. Clock Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Figure 17. MLT-3 Test Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Figure 18. Management Bus Transmit Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Figure 19. Management Bus Receive Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Figure 20. RMII 100 Mbps Transmit Start of Packet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Figure 21. RMII 100 Mbps Transmit End of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Figure 22. 100 Mbps RMII Receive Start of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Figure 23. 100 Mbps RMII Receive End of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Figure 24. RMII 10 Mbps Transmit Start of Packet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Figure 25. RMII 10 Mbps Transmit End of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Figure 26. 10 Mbps RMII Receive Start of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Figure 27. 10 Mbps RMII Receive End of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
LIST OF TABLES
Table 1. Code-Group Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Table 2. LED Display Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Table 3. Clause 22 Management Frame Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Table 4. PHY Address Setting Frame Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Table 5. NetPHY™ 4LP MII Management Register Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Table 6. Legend for Register Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Table 7. MII Management Control Register (Register 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Table 8. MII Management Status Register (Register 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Table 9. PHY Identifier 1 Register (Register 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Table 10. PHY Identifier 2 Register (Register 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Table 11. Auto-Negotiation Advertisement Register (Register 4) . . . . . . . . . . . . . . . . . . . . . . .28
Table 12. Auto-Negotiation Link Partner Ability Register in Base Page Format (Register 5) . .29
Table 13. Auto-Negotiation LInk Partner Ability Register in Next Page Format (Register 5) . .29
Table 14. Auto-Negotiation Expansion Register (Register 6) . . . . . . . . . . . . . . . . . . . . . . . . . .30
Table 15. Auto-Negotiation Next page Advertisement Register (Register 7) . . . . . . . . . . . . . .30
Table 16. Miscellaneous Features Register (Register 16) . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Table 17. Interrupt Control/Status Register (Register 17) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Table 18. Diagnostic Register (Register 18) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Table 19. Test Register (Register 19) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Table 20. Miscellaneous Features 2 Register (Register 20) . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Table 21. Receive Error Counter (Register 21) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Table 22. Mode Control Register (Register 24) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
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Am79C875
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