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KSZ8765CLXCC View Datasheet(PDF) - Micrel

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KSZ8765CLXCC Datasheet PDF : 153 Pages
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Micrel, Inc.
KSZ8765CLX
Contents
List of Figures.......................................................................................................................................................................... 9
List of Tables ......................................................................................................................................................................... 10
Pin Configuration................................................................................................................................................................... 11
Pin Description ...................................................................................................................................................................... 12
Strap-In Options .................................................................................................................................................................... 18
Introduction............................................................................................................................................................................ 20
Functional Overview: Physical Layer (PHY) ......................................................................................................................... 20
100BASE-TX Transmit ..................................................................................................................................................... 20
100BASE-TX Receive ...................................................................................................................................................... 20
PLL Clock Synthesizer...................................................................................................................................................... 20
Scrambler/Descrambler (100BASE-TX Only)................................................................................................................... 21
100BASE-FX Operation.................................................................................................................................................... 21
100BASE-FX Signal Detection ......................................................................................................................................... 21
100BASE-FX Far End Fault.............................................................................................................................................. 21
10BASE-T Transmit.......................................................................................................................................................... 21
10BASE-T Receive ........................................................................................................................................................... 21
MDI/MDI-X Auto Crossover .............................................................................................................................................. 21
Straight Cable ............................................................................................................................................................... 22
Crossover Cable ........................................................................................................................................................... 22
Auto-Negotiation ............................................................................................................................................................... 23
LinkMD® Cable Diagnostics .............................................................................................................................................. 24
Access .......................................................................................................................................................................... 24
Usage ........................................................................................................................................................................... 24
A LinkMD® Example ..................................................................................................................................................... 25
On-Chip Termination and Internal Biasing ....................................................................................................................... 25
Functional Overview: Media Access Controller (MAC) ......................................................................................................... 26
Media Access Controller Operation .................................................................................................................................. 26
Inter-Packet Gap (IPG) ................................................................................................................................................. 26
Backoff Algorithm ......................................................................................................................................................... 26
Late Collision ................................................................................................................................................................ 26
Illegal Frames ............................................................................................................................................................... 26
Flow Control.................................................................................................................................................................. 26
Half-Duplex Back Pressure .......................................................................................................................................... 27
Broadcast Storm Protection.......................................................................................................................................... 27
Functional Overview: Switch Core ........................................................................................................................................ 28
Learning ............................................................................................................................................................................ 28
Migration ........................................................................................................................................................................... 28
Aging ................................................................................................................................................................................. 28
Forwarding ........................................................................................................................................................................ 28
Switching Engine .............................................................................................................................................................. 29
Functional Overview: Power ................................................................................................................................................. 30
July 23, 2014
5
Revision 1.0
 

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