Micrel, Inc.
KSZ8041NL/RNL
List of Figures
Figure 1. Auto-Negotiation Flow Chart.................................................................................................................................22
Figure 2. KSZ8041NL RMII Interface...................................................................................................................................27
Figure 3. KSZ8041RNL RMII Interface................................................................................................................................28
Figure 4. Typical Straight Cable Connection .......................................................................................................................29
Figure 5. Typical Crossover Cable Connection ...................................................................................................................29
Figure 6. 25MHz Crystal / Oscillator Reference Clock ........................................................................................................30
Figure 7. 50MHz Oscillator Reference Clock for KSZ8041NL RMII Mode..........................................................................30
Figure 8. KSZ8041NL/RNL Power and Ground Connections..............................................................................................31
Figure 9. MII SQE Timing (10Base-T) .................................................................................................................................42
Figure 10. MII Transmit Timing (10Base-T).........................................................................................................................43
Figure 11. MII Receive Timing (10Base-T)..........................................................................................................................44
Figure 12. MII Transmit Timing (100Base-TX).....................................................................................................................45
Figure 13. MII Receive Timing (100Base-TX)......................................................................................................................46
Figure 14. RMII Timing – Data Received from RMII............................................................................................................47
Figure 15. RMII Timing – Data Input to RMII .......................................................................................................................47
Figure 16. Auto-Negotiation Fast Link Pulse (FLP) Timing .................................................................................................48
Figure 17. MDC/MDIO Timing..............................................................................................................................................49
Figure 18. Reset Timing.......................................................................................................................................................50
Figure 19. Recommended Reset Circuit..............................................................................................................................51
Figure 20. Recommended Reset Circuit for interfacing with CPU/FPGA Reset Output......................................................51
Figure 21. Reference Circuits for LED Strapping Pins.........................................................................................................52
September 2010
7
M9999-090910-1.4
MICREL [ MICREL SEMICONDUCTOR ]
