GENERAL DESCRIPTION

The LAN83C175 EPIC/C is a high-performance Low CPU Utilization Ethernet network controller designed to interface directly to the CardBus Local Bus on one side and to the 802.3 standard Media Independent Interface (MII) on the other side. The network interface can also be configured to communicate directly with the LAN83C694 10BASE-T transceiver.

FEATURES

• IEEE 802.3 Compliant 10/100 Mb/s Ethernet Controller

• Fully Compliant Glueless Integrated CardBus Interface

• Secondary 8 Bit interface to Support Multifunction CardBus Adpaters Including LAN / Rockwell or Lucent Modem Combinations

• Supports 3.3V or 5V Modem and Physical Layer Interface

• 10Base-T Physical Layer Digital Support

- Smart Squelch Digital Noise Filter and Receive and Collision Input to Reject Both Analog and Digital Noise on Twisted Pair Receive Inputs

- 10Mbps Manchester Encoding / Decoding with Receive Clock Recovery

- Automatic Polarity Detection

- Full Duplex Support

• Scatter/Gather DMA Capability

• Supports Chaining of Transmit Packets

• Optional Early Transmit and Early Receive

• Optional Receive Lookahead Buffering Mode

• 4.5Kbyte On-Chip Receive Buffer and 1.5Kbyte On-Chip Transmit Buffer Eliminate Bus Latency Issues

• Automatic Rejection of Runt Packets

• Automatic Retransmission of Collision Frames from Internal Buffer

• Automatic Padding of Short Frames

• Big or Little Endian Byte Ordering

• Capable of Supporting 64Kbyte Expansion Boot ROM

• IEEE Standard MII Interface to Physical Layer

• Interface to LAN83C694 Shares MII Pins

• Serial MII Management Interface

• Interface to an 8 Bit Parallel EEPROM for Storage and Retrieval of LAN Address and Configuration Information

• On-Chip Clock Multiplier

• Low Power Sleep Mode and Extended Power Management Features

• Internal and External Loopback Diagnostic Functions

• Simple I/O Pin Mapping Scheme to Facilitate In-Circuit Test

• Single 3.3V Supply

• 208 Pin TQFP Package