Micrel, Inc.
KSZ8863MLL/FLL//RLL
January 27, 2014
4
Revision 1.5
Contents
Functional Diagram............................................................................................................................................................... 1
Applications........................................................................................................................................................................... 2
Pin Description and I/O Assignment ................................................................................................................................. 12
Pin Configuration ................................................................................................................................................................ 16
Functional Description ....................................................................................................................................................... 17
Functional Overview: Physical Layer Transceiver .......................................................................................................... 17
100BASE-TX Transmit ..................................................................................................................................................... 17
100BASE-TX Receive ...................................................................................................................................................... 17
PLL Clock Synthesizer...................................................................................................................................................... 17
Scrambler/De-scrambler (100BASE-TX Only) ................................................................................................................. 17
100BASE-FX Operation.................................................................................................................................................... 17
100BASE-FX Signal Detection ......................................................................................................................................... 18
100BASE-FX Far-End Fault ............................................................................................................................................. 18
10BASE-T Transmit.......................................................................................................................................................... 18
10BASE-T Receive ........................................................................................................................................................... 18
MDI/MDI-X Auto Crossover .............................................................................................................................................. 18
Straight Cable ............................................................................................................................................................ 19
Crossover Cable ........................................................................................................................................................ 20
Auto-Negotiation ............................................................................................................................................................... 21
LinkMD
Cable Diagnostics.............................................................................................................................................. 22
Access ....................................................................................................................................................................... 22
Usage......................................................................................................................................................................... 22
Functional Overview: Power Management....................................................................................................................... 22
Normal Operation Mode ................................................................................................................................................... 23
Energy Detect Mode ......................................................................................................................................................... 23
Soft Power Down Mode .................................................................................................................................................... 23
Power Saving Mode.......................................................................................................................................................... 23
Port based Power Down Mode ......................................................................................................................................... 23
Functional Overview: MAC and Switch ............................................................................................................................ 24
Address Lookup ................................................................................................................................................................ 24
Learning ............................................................................................................................................................................ 24
Migration ........................................................................................................................................................................... 24
Aging................................................................................................................................................................................. 24
Forwarding ........................................................................................................................................................................ 24
Switching Engine .............................................................................................................................................................. 27
MAC Operation ................................................................................................................................................................. 27
Inter Packet Gap (IPG) .............................................................................................................................................. 27
Back-Off Algorithm..................................................................................................................................................... 27
Late Collision ............................................................................................................................................................. 27
Illegal Frames ............................................................................................................................................................ 27
Full Duplex Flow Control............................................................................................................................................ 27
Half-Duplex Backpressure ......................................................................................................................................... 27
Broadcast Storm Protection....................................................................................................................................... 28
Port Individual MAC address and Source Port Filtering ............................................................................................ 28
MII Interface Operation ..................................................................................................................................................... 28
RMII Interface Operation .................................................................................................................................................. 29
MII Management (MIIM) Interface .................................................................................................................................... 32
Serial Management Interface (SMI).................................................................................................................................. 33