KS8993F/KS8993FL
Single Chip Fast Ethernet Media
Converter with TS-1000 OAM
Revision 1.3
The KS8993FL is the single supply version with all the
identical rich features of the KS8993F.
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 100BASETX conversion in the FTTx market.
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)
•
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
To Control
Registers
Auto
MDI/MDI-X
10/100
T/TX/FX
PHY2
MII / SNI
Interface
O
A
M
1K look-up
Engine
10/100
MAC 1
10/100
MAC 2
10/100
MAC 3
SNI
SPI
Interface
SPI
FIFO, Flow Control, VLAN Tagging ,Priority
Auto
MDI/MDI-X
10/100
T/TX/FX
PHY1
Queue
Management
Buffer
Management
Frame
Buffers
MIB
Counters
MIIM
Interface
Control
Registers
SMI
Interface
EEPROM
Interface
I2C
Bus
P1 LED[3:0]
LED
Drivers
Strap In
Configuration Pins
P2 LED[3:0]
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
