
84301 4-Port
Fast Ethernet Controller
Fast Ethernet Controller
4-1
MD400158/D
98079
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 84301
- 64 bit Multicast Filter
- Reports Status of “SQE” During Transmits
- Transmit No CRC Mode
- Transmit No Preamble Mode
- Transmit Packet Autopadding Mode
- Receive CRC Mode
- Disable Self-Receive on Transmits Mode
- Disable Further Transmissions when Both
Transmit Status Registers are Full
Hurricane is a trademark of SEEQ Technology Inc.
- Disable Loading the Transmit Status for
Successfully Transmitted Packets
- Disable the Receive Interrupts Independent
of the Receive Command Register Setting
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Fifteen 32-bit Counters per Port for Network
Management Statistics
Receive:
- CRC Errors
- Runt Frames
- Oversize Frames
- Alignment Errors
- Collisions
- FIFO Underflow
Transmit:
- Single Retry Collisions
- Multiple Retry Collisions
- Sixteen Retry Collisions
- FIFO Underruns
- Late Collisions
- Loss of Carrier
- Transmit Deferred
- Total Frames
- Total Octets
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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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Full Backward Compatibility with 84C300A
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Error Interrupts and Status Conditions
Examples:
- Counter Half-Full
- Rx FIFO Overflow
- Tx FIFO Underflow
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208 Pin PQFP package
TM
Full Duplex
This document is an LSI Logic document.
Any reference to SEEQ Technology should be
considered LSI Logic.
Note: Check for latest Data Sheet revision
before starting any designs.
SEEQ Data Sheets are now on the Web, access
SEEQ Home Page www.seeq.com
- or -
LSI Logic at www.lsilogic.com