
84C300A 4-Port
Fast Ethernet Controller
Fast Ethernet Controller
4-1
1
MD400152/E
98078
Features
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Low Power CMOS Technology
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4-Port Ethernet Controller Optimized for
Switching Hub, Multiport Bridge/Router,
Server Applications
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Supports 100Base-T4, 100 Base-TX, 100Base-FX
& 10Base-T Transceivers
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Meets ANSI/IEEE 802.3 and ISO 8802-3 Standards
for Thicknet (10Base-5), Thin Net (10Base-2)
and Twisted Pair (10Base-T)
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Standard 10MBit/sec Serial Mode or
Programmable MII Ethernet Interface for 10/100
MBit/sec Applications
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Preamble Generation and Removal
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Automatic 32-Bit FCS (CRC) Generation and
Checking
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Collision Handling, Transmission Deferral and
Retransmission with Automatic Jam and
Backoff Functions
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Transmit Status on a Per Packet Basis Reports the
Following
- Occurrence of a Transmit FIFO Underflow
- Transmit Collision Occurrence
- 16 Collision Occurrence
- Carrier Sense Error During Transmission
- 10/100 Mbit/sec Transmit Clock Detect
- Late Collision Occurrence
- Transmission Successful
- Transmission Deferred
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Single 5 V
±
5% Power Supply
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Loopback Capability for Diagnostics
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The Following Additional Features can be
Programmed for the 84C300A
- 64 bit Multicast Filter
- Reports Status of “SQE” During Transmits
- Transmit No CRC Mode
- Transmit No Preamble Mode
- Transmit Packet Autopadding Mode
Hurricane is a trademark of SEEQ Technology Inc.
- Receive CRC Mode
- Disable Self-Receive on Transmits Mode
- Disable Further Transmissions when Both
Transmit Status Registers are Full
- Disable Loading the Transmit Status for
Successfully Transmitted Packets
- Disable the Receive Interrupts Independent
of the Receive Command Register Setting
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Six Counters per Port for Network
Management Statistics
Receive:
- 16 Bit CRC Errors
- 16 Bit Runt Frames
- 8 Bit Oversize Frames
- 16 Bit Alignment Errors
Transmit:
- 16 Bit Transmit Collisions
- 16 Bit Total Collisions
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Full Duplex Operation
- Provides 20/200 Mbps Bandwidth for
Switched Networks
- Supports AutoDUPLEX Mode for Automatic
Full Duplex Operation
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High Bandwidth Bus Interface
- 32 Bits x 33 MHz
- Selectable Big/Little Endianess
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Independent 128 Byte Transmit/Receive
FIFOs/Port
- Programmable Threshold Flags
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208 Pin PQFP package
TM
Full Duplex
Note: Check for latest Data Sheet revision
before starting any designs.
SEEQ Data Sheets are now on the Web, at
www.lsilogic.com.
This document is an LSI Logic document. Any
reference to SEEQ Technology should be
considered LSI Logic.