KS8842-32MQL Micrel Inc, KS8842-32MQL Datasheet - Page 9

• Manufacturer Part Number: KS8842-32MQL
• Description: IC SWITCH 10/100 32BIT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8842-32MQL

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 2
• Internal Memory Buffer Size: 32
• Operating Supply Voltage (typ): 3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 3.5V
• Operating Supply Voltage (min): 3.1V
• Operating Temperature Classification: Commercial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: KS8842-PMQL-EVAL - EVAL KIT EXPERIMENTAL KS8842KS8842-16MQL-EVAL - EVAL KIT EXPERIMENTAL KS8842
• Lead Free Status / RoHS Status: Not Compliant, Lead free / RoHS Compliant
• Other names: 576-1459

List of Figures
Figure 1. KSZ8842M Functional Diagram ..................................................................................................................................... 1
Figure 2. Standard – KSZ8842-16 MQL 128-Pin PQFP (Top View)............................................................................................ 11
Figure 3. Option – KSZ8842-16 MVL 128-Pin LQFP (Top View) ................................................................................................ 11
Figure 4. KSZ8842-16MBL 100-Ball LFBGA (Top View)............................................................................................................. 12
Figure 5. Standard – KSZ8842-32 MQL 128-Pin PQFP (Top View)............................................................................................ 22
Figure 6. Option – KSZ8842-32 MVL 128-Pin LQFP (Top View) ................................................................................................ 22
Figure 7. Typical Straight Cable Connection ............................................................................................................................... 29
Figure 8. Typical Crossover Cable Connection ........................................................................................................................... 30
Figure 9. Auto Negotiation and Parallel Operation ...................................................................................................................... 31
Figure 10. Destination Address Lookup Flow Chart in Stage One .............................................................................................. 33
Figure 11. Destination Address Resolution Flow Chart in Stage Two ......................................................................................... 34
Figure 12. Mapping from ISA-like, EISA-like, and VLBus-like transactions to the KSZ8842M Bus ............................................. 40
Figure 13. KSZ8842M 8-Bit, 16-Bit, and 32-Bit Data Bus Connections....................................................................................... 40
Figure 14. 802.1p Priority Field Format ....................................................................................................................................... 47
Figure 15. Port 2 Far-End Loopback Path ................................................................................................................................... 50
Figure 16. Port 1 and port 2 Near-End (Remote) Loopback Path................................................................................................ 50
Figure 17. Asynchronous Cycle – ADSN = 0............................................................................................................................. 124
Figure 18. Asynchronous Cycle – Using ADSN......................................................................................................................... 125
Figure 19. Asynchronous Cycle – Using DATACSN ................................................................................................................. 126
Figure 20. Address Latching Cycle for All Modes...................................................................................................................... 127
Figure 21. Synchronous Burst Write Cycles – VLBUSN = 1...................................................................................................... 128
Figure 22. Synchronous Burst Read Cycles – VLBUSN = 1 ..................................................................................................... 129
Figure 23. Synchronous Write Cycle – VLBUSN = 0................................................................................................................. 130
Figure 24. Synchronous Read Cycle – VLBUSN = 0................................................................................................................. 131
Figure 25. EEPROM Read Cycle Timing Diagram .................................................................................................................... 132
Figure 26. Auto-Negotiation Timing........................................................................................................................................... 133
Figure 27. Reset Timing ............................................................................................................................................................ 134
Figure 28. 128-Pin PQFP Package.Figure 29. Optional 128-Pin LQFP Package .................................................................... 136
Figure 29. Optional 128-Pin LQFP Package ............................................................................................................................. 137
Figure 30. Optional 100-Ball LFBGA Package .......................................................................................................................... 138
Micrel, Inc.
October 2007
9
KSZ8842-16/32 MQL/MVL/MVLI/MBL
M9999-102207-1.9