KSZ8841-16MVL datasheet(4/105 Pages) MICREL

Part #	KSZ8841-16MVL

Description	Single-Port Ethernet MAC Controller with Non-PCI Interface

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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4 / 105 page

Micrel, Inc.

KSZ8841-16/32 MQL/MVL/MBL

October 2007

4

M9999-102207-1.6

Contents

General Description .............................................................................................................................................................. 1

Functional Diagram............................................................................................................................................................... 1

Features ................................................................................................................................................................................. 2

Network Features ........................................................................................................................................................... 2

Power Modes, Power Supplies, and Packaging............................................................................................................. 2

Applications........................................................................................................................................................................... 2

Markets................................................................................................................................................................................... 2

Ordering Information ............................................................................................................................................................ 3

Revision History .................................................................................................................................................................... 3

Pin Configuration for KSZ8841-16 Chip (8/16-Bit) ........................................................................................................... 10

Ball Configuration for KSZ8841-16 Chip (8/16-Bit) .......................................................................................................... 11

Pin Description for KSZ8841-16 Chip (8/16-Bit) ............................................................................................................... 12

Ball Description for KSZ8841-16 Chip (8/16-Bit) .............................................................................................................. 17

Pin Configuration for KSZ8841-32 Chip (32-Bit) .............................................................................................................. 21

Pin Description for KSZ8841-32 Chip (32-Bit) .................................................................................................................. 22

Functional Description ....................................................................................................................................................... 27

Functional Overview ........................................................................................................................................................... 27

Power Management ..................................................................................................................................................... 27

Power down ............................................................................................................................................................................... 27

Wake-on-LAN............................................................................................................................................................................. 27

Link Change ............................................................................................................................................................................... 27

Wake-up Packet......................................................................................................................................................................... 27

Magic Packet.............................................................................................................................................................................. 27

Physical Layer Transceiver (PHY)................................................................................................................................ 28

100BASE-TX Transmit............................................................................................................................................................... 28

100BASE-TX Receive................................................................................................................................................................ 29

PLL Clock Synthesizer (Recovery)............................................................................................................................................. 29

Scrambler/De-scrambler (100BASE-TX Only) ........................................................................................................................... 29

10BASE-T Transmit ................................................................................................................................................................... 29

10BASE-T Receive .................................................................................................................................................................... 29

MDI/MDI-X Auto Crossover........................................................................................................................................................ 29

Straight Cable........................................................................................................................................................................ 30

Crossover Cable.................................................................................................................................................................... 30

Auto Negotiation......................................................................................................................................................................... 31

LinkMD Cable Diagnostics ......................................................................................................................................................... 32

Access................................................................................................................................................................................... 32

Usage .................................................................................................................................................................................... 32

Media Access Control (MAC) Operation ...................................................................................................................... 32

Inter Packet Gap (IPG)............................................................................................................................................................... 32

Back-Off Algorithm ..................................................................................................................................................................... 32

Late Collision.............................................................................................................................................................................. 32

Flow Control ............................................................................................................................................................................... 32

Half-Duplex Backpressure ......................................................................................................................................................... 33

Clock Generator ......................................................................................................................................................................... 33

Bus Interface Unit (BIU)................................................................................................................................................ 33

Supported Transfers .................................................................................................................................................................. 33

Physical Data Bus Size .............................................................................................................................................................. 33

Asynchronous Interface ............................................................................................................................................................. 35

Synchronous Interface ............................................................................................................................................................... 36

BIU Summation .......................................................................................................................................................................... 36

BIU Implementation Principles ................................................................................................................................................... 37

Queue Management Unit (QMU).................................................................................................................................. 38

Transmit Queue (TXQ) Frame Format ....................................................................................................................................... 38

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