Functional Description; Introduction; Product Features - Motorola 82543 Owner's Manual

Introduction

This chapter describes the Gigabit Ethernet/82543 PMC Module on a
feature and block diagram level.
diagram of the overall board architecture.
The following sections contain detailed descriptions of several blocks of
circuitry.

Product Features

In addition to the features offered through Gigabit Ethernet technology, the
Gigabit Ethernet/82543 PMC Module features the following:

2Functional Description

PMC form factor
32- or 64-bit bus operations at speeds of 33 or 66 MHz
Data rate of 125 Mb/s in half-duplex mode and 250 Mb/s in full-
duplex mode
Standard RJ–45 connection
Automatic speed selection
64 KB on-chip first-in/first-out (FIFO) data buffer for buffering
receive and transmit frames
1000 BaseTx (1000 Mb/s) on UTP Category 5e cabling, 100
BaseTx (100 Mb/s) on UTP Category 5 cabling, and 10 BaseTx (10
Mb/s) on UTP Category 3, 4, or 5 cabling
Support for full-duplex mode, increasing the aggregate maximum
bandwidth up to 2000 Mb/s, 200 Mb/s, and 20 Mb/s
Automatic media dependent interface (MDI) cross-over function for
all modes of operation, including 100 BaseTx and 10 BaseTx
Figure 2-1 on page 2-2
2
shows a block
2-1