KSZ8893FQL datasheet(4/109 Pages) MICROCHIP

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KSZ8893FQL

DS00003038B-page 4

 2019 Microchip Technology Inc.

1.0

INTRODUCTION

1.1

General Description

The KSZ8893FQL, a highly integrated single-chip 3-port Fast Ethernet switch is designed for applications with fiber sup-

port 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.

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.

FIGURE 1-1:

SYSTEM BLOCK DIAGRAM

1K LOOK-UP

ENGINE

QUEUE

MANAGEMENT

BUFFER

MANAGEMENT

FRAME

BUFFERS

MIB

COUNTERS

EEPROM

INTERFACE

10/100

MAC 1

10/100

MAC 2

10/100

MAC 3

10/100

FL/FX/SX

PHY 1

10/100

T/TX

PHY 2

HP AUTO

MDIX

HP AUTO

MDIX

SNI

RMII/MII/

SNI

SPI

CONTROL

REGISTERS

MIIM

SMI

STRAP IN

CONFIGURATION

LED

DRIVERS

I2C

P1 LED[3:0]

P2 LED[3:0]

TO CONTROL

REGISTERS

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