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PDF KSZ8893FQL Data sheet ( Hoja de datos )

Número de pieza KSZ8893FQL
Descripción Single-Chip 3-Port Switch
Fabricantes Micrel Semiconductor　
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KSZ8893FQL
Single-Chip 3-Port Switch
with Fiber Support
Rev. 1.3
General Description
The KSZ8893FQL, a highly integrated single-chip 3 port
Fast Ethernet switch is designed for applications with
fiber support such as media converter. It provides two
10/100 transceivers with patented mixed-signal low-
power technology, three media access control (MAC)
units, a high-speed non-blocking switch fabric, a Layer-2
managed switch and TS-1000 OAM (Operations,
Administration and Management) V2 in a compact
solution. Backwards compatible to the TS-1000 (2002)
specification, TS-1000 V2 is an OAM sub-layer that
provides communication between CO (central office) and
CPE (customer premises equipment).
In fiber mode, one PHY unit can be configurable to
100Base-FX, 100Base-SX, or 10Base-FL fiber for
conversion to 10Base-T and 100Base-TX copper. A fiber
LED driver and post amplifier are also included for
10Base-FL and 100Base-SX applications.
LinkMD®
In copper mode, both PHY units support 10Base-T and
100Base-TX with HP Auto MDI/MDI-X for reliable
detection of and correction for straight-through and
crossover cables, and LinkMD® TDR-based cable
diagnostics for identification of faulty cabling.
The high performance switching engine features an
extensive feature set that includes programmable rate
limiting, tag/port-based VLAN, 4 priority class,
RMII/MII/SNI and CPU control/data interfaces to
effectively address both current and emerging Fast
Ethernet applications.
The KSZ8893FQL comes in a lead-free package (see
Ordering Information).
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Functional Diagram
www.DataSheet4U.com
KSZ8893FQL
LinkMD is a registered trademark of Micrel, Inc
Product/Application names used in this datasheet are for identification purposes only and may be trademarks of their respective companies.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
October 2007
M9999-101607-1.3

1 page




KSZ8893FQL pdf
Micrel, Inc.
KSZ8893FQL
Contents
Pin Configuration ............................................................................................................................................................ 12
Pin Description ................................................................................................................................................................ 13
Functional Description ................................................................................................................................................... 22
Functional Overview: Media Conversion...................................................................................................................... 22
TS-1000 OAM Operation ............................................................................................................................................ 22
OAM Frame Format ............................................................................................................................................. 22
Media Converter Modes....................................................................................................................................... 24
MC Loop Back Operation..................................................................................................................................... 25
Dedicated TS-1000 Registers & Pins................................................................................................................... 26
10Base-FL Operation ................................................................................................................................................. 27
Physical Interface ................................................................................................................................................. 27
Enabling 10Base-FL Mode................................................................................................................................... 27
100Base-SX Operation............................................................................................................................................... 27
Physical Interface ................................................................................................................................................. 27
Enabling 100Base-SX Mode ................................................................................................................................ 27
100Base-TX Transmit................................................................................................................................................. 28
100Base-TX Receive.................................................................................................................................................. 28
PLL Clock Synthesizer................................................................................................................................................ 28
Scrambler/De-scrambler (100Base-TX Only)............................................................................................................. 28
100Base-FX Operation ............................................................................................................................................... 29
100Base-FX Signal Detection..................................................................................................................................... 29
100Base-FX Far-End Fault......................................................................................................................................... 29
10Base-T Transmit ..................................................................................................................................................... 29
10Base-T Receive ...................................................................................................................................................... 29
Fiber LED Driver ......................................................................................................................................................... 29
Post Amplifier.............................................................................................................................................................. 30
Power Management.................................................................................................................................................... 30
MDI/MDI-X Auto Crossover ........................................................................................................................................ 30
Straight Cable....................................................................................................................................................... 30
Crossover Cable................................................................................................................................................... 31
Auto-Negotiation ......................................................................................................................................................... 32
LinkMD Cable Diagnostics.......................................................................................................................................... 33
Access.................................................................................................................................................................. 33
Usage ................................................................................................................................................................... 33
Functional Overview: MAC and Switch......................................................................................................................... 34
Address Lookup.......................................................................................................................................................... 34
Learning ...................................................................................................................................................................... 34
Migration ..................................................................................................................................................................... 34
Aging........................................................................................................................................................................... 34
Forwarding .................................................................................................................................................................. 34
Switching Engine ........................................................................................................................................................ 37
MAC Operation ........................................................................................................................................................... 37
Inter Packet Gap (IPG)......................................................................................................................................... 37
Back-Off Algorithm ............................................................................................................................................... 37
Late Collision........................................................................................................................................................ 37
Illegal Frames....................................................................................................................................................... 37
Full Duplex Flow Control ...................................................................................................................................... 37
Half-Duplex Backpressure ................................................................................................................................... 37
www.DataSheBerto4aUd.ccoamst Storm Protection ................................................................................................................................. 38
MII Interface Operation ............................................................................................................................................... 38
RMII Interface Operation ............................................................................................................................................ 39
SNI (7-Wire) Operation ............................................................................................................................................... 40
MII Management (MIIM) Interface .............................................................................................................................. 41
Serial Management Interface (SMI)............................................................................................................................ 41
October 2007
5 M9999-101607-1.3

5 Page





KSZ8893FQL arduino
Micrel, Inc.
KSZ8893FQL
List of Tables
Table 1. TS-1000 Media Converter Mode Selection........................................................................................................ 24
Table 2. Dedicated TS-1000 Pins .................................................................................................................................... 26
Table 3. 10Base-FL Configuration ................................................................................................................................... 27
Table 4. 100Base-SX Configuration................................................................................................................................. 28
Table 5. FX and TX Mode Selection ................................................................................................................................ 29
Table 6. Programmable Current Values for Fiber LED Driver ......................................................................................... 30
Table 7. MDI/MDI-X Pin Definitions ................................................................................................................................. 30
Table 8. MII Signals.......................................................................................................................................................... 38
Table 9. RMII Signal Description...................................................................................................................................... 39
Table 10. RMII Signal Connections.................................................................................................................................. 40
Table 11. SNI Signals....................................................................................................................................................... 40
Table 12. MII Management Interface Frame Format ....................................................................................................... 41
Table 13. Serial Management Interface (SMI) Frame Format ......................................................................................... 41
Table 14. Spanning Tree States ...................................................................................................................................... 42
Table 15. Special Tagging Mode Format ......................................................................................................................... 43
Table 16. STPID Egress Rules (Processor to Switch Port 3) .......................................................................................... 43
Table 17. STPID Egress Rules (Switch Port 3 to Processor) .......................................................................................... 44
Table 18. FID+DA Lookup in VLAN Mode ....................................................................................................................... 45
Table 19. FID+SA Lookup in VLAN Mode ....................................................................................................................... 45
Table 20. KSZ8893FQL SPI Connections ....................................................................................................................... 49
Table 21. Format of Static MAC Table (8 Entries) ........................................................................................................... 97
Table 22. Format of Static VLAN Table (16 Entries)........................................................................................................ 99
Table 23. Format of Dynamic MAC Address Table (1K Entries) ................................................................................... 100
Table 24. Format of “Per Port” MIB Counters ................................................................................................................ 101
Table 25. Port 1’s “Per Port” MIB Counters Indirect Memory Offsets............................................................................ 102
Table 26. Format of “All Port Dropped Packet” MIB Counters....................................................................................... 102
Table 27. “All Port Dropped Packet” MIB Counters Indirect Memory Offsets................................................................ 102
Table 28. EEPROM Timing Parameters ........................................................................................................................ 106
Table 29. SNI Timing Parameters.................................................................................................................................. 107
Table 30. MII Timing Parameters................................................................................................................................... 108
Table 31. RMII Timing Parameters ................................................................................................................................ 109
Table 32. SPI Input Timing Parameters ......................................................................................................................... 110
Table 33. SPI Output Timing Parameters ...................................................................................................................... 111
Table 34. Auto-Negotiation Timing Parameters............................................................................................................. 112
Table 35. Reset Timing Parameters .............................................................................................................................. 113
Table 36. Transformer Selection Criteria ....................................................................................................................... 115
Table 37. Qualified Single Port Magnetics..................................................................................................................... 115
Table 38. Typical Reference Crystal Characteristics ...................................................................................................... 115
www.DataSheet4U.com
October 2007
11 M9999-101607-1.3

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