KSZ8993F データシートの表示（PDF） - Micrel

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KSZ8993F

Single Chip Fast Ethernet Media Converter with TS-1000 OAM

Micrel 

KS8993F/KS8993FL

Single Chip Fast Ethernet Media

Converter with TS-1000 OAM

Revision 1.3

General Description

The Micrel KS8993F is the industry’s first single chip Fast

Ethernet Media Converter with built-in OAM functions. The

KS8993F integrates three MACs, two PHYs, OAM, frame

buffer and high performance switch into a single chip. It is

ideal for use in 100BASE-FX to 10BASE-T or 100BASE-

TX conversion in the FTTx market.

The KS8993F provides remote loop back and OAM

(Operation, Administration and Maintenance) to manage

subscriber access network from carrier center side to

terminal side.

The KS8993F supports advanced features such as rate

limiting, force flow control and link transparency.

The KS8993F with built-in Layer 2 switch capability will

filter packets and forward them to valid destination. It will

discard any unwanted frames and frames with invalid

destination.

Block Diagram

The KS8993FL is the single supply version with all the

identical rich features of the KS8993F.

Features

• First single-chip 10BASE-T/100BASE-TX to

100BASE-FX media converter with TS-1000 OAM

• Integrated 3-Port 10/100 Ethernet Switch with

3 MACs and 2 PHYs

• Unique User Defined Register (UDR) feature brings

OAM to low cost/complexity nodes

• Automatic MDI/MDI-X crossover with disable and

enable option

• Non-blocking switch fabric assures fast packet

delivery by utilizing an 1K MAC Address lookup table

and a store-and-forward architecture

• Comprehensive LED indicator support for link, activity,

full/half duplex and 10/100 speed

• Full complement of MII/SNI, SPI, MIIM, SMI and I2C

interfaces

• Low Power Dissipation:< 800mW (includes PHY

transmit drivers)

Auto

MDI/MDI-X

Auto

MDI/MDI-X

MII / SNI

Interface

SPI

Interface

MIIM

Interface

SMI

Interface

I2C

Bus

P1 LED[3:0]

P2 LED[3:0]

10/100

T/TX/FX

PHY1

10/100

T/TX/FX

PHY2

To Control

Registers

O

A

10/100

MAC 1

M

10/100

MAC 2

10/100

MAC 3

SNI

SPI

Control

Registers

1K look-up

Engine

Queue

Management

Buffer

Management

Frame

Buffers

MIB

Counters

EEPROM

Interface

LED

Drivers

Strap In

Configuration Pins

KS8993F / KS8993FL

Micrel is a registered trademark of Micrel, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

June 2009

M9999-062509

hbwhelp@micrel.com or (408) 955-1690

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