AM79C874VC AMD (ADVANCED MICRO DEVICES), AM79C874VC Datasheet - Page 8

• Manufacturer Part Number: AM79C874VC
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM79C874VC

• Lead Free Status / RoHS Status: Not Compliant

LIST OF FIGURES
8
Figure 1. FXT± and FXR± Termination for 100BASE-FX . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Figure 2. MLT-3 Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 3. TX± and RX± Termination for 100BASE-TX and 10BASE-T . . . . . . . . . . . . . . . . . . .22
Figure 4. 10BASE-T Transmit /Receive Data Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Figure 5. Standard LED Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Figure 6. Advanced LED Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure 7. PHY Management Read and Write Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 8. MLT-3 Receive Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Figure 9. MLT-3 and 10BASE-T Test Load with 1:1 Transformer Ratio . . . . . . . . . . . . . . . . . .45
Figure 10. MLT-3 and 10BASE-T Test Load with 1.25:1 Transformer Ratio . . . . . . . . . . . . . . .45
Figure 11. Near-End 100BASE-TX Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Figure 12. 10BASE-T Waveform With 1:1 Transformer Ratio . . . . . . . . . . . . . . . . . . . . . . . . . .46
Figure 13. PECL Test Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Figure 14. Clock Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Figure 15. MLT-3 Test Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Figure 16. Management Bus Transmit Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Figure 17. Management Bus Receive Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Figure 18. 100 Mbps MII Transmit Start of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Figure 19. 100 Mbps Transmit End of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Figure 20. 100 Mbps MII Receive Start of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Figure 21. 100 Mbps MII Receive End of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Figure 22. 10 Mbps MII Transmit Start of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Figure 23. 10 Mbps MII Transmit End of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Figure 24. 10 Mbps MII Receive Start of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Figure 25. 10 Mbps MII Receive End of Packet Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Figure 26. GPSI Receive Timing - Start of Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Figure 27. GPSI Receive Timing - End of Reception (Last Bit = 0) . . . . . . . . . . . . . . . . . . . . . .55
Figure 28. GPSI Receive Timing - End of Reception (Last Bit = 1) . . . . . . . . . . . . . . . . . . . . . .56
Figure 29. GPSI Collision Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Figure 30. GPSI Transmit Timing - Start of Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Figure 31. GPSI Transmit 10TXCLK and 10TXD Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Figure 32. Test Load for 10RXD, 10CRS, 10RXCLK, 10TXCLK and 10COL . . . . . . . . . . . . . .57
D A T A
Am79C874
S H E E T
22235K