Motorola 82543, Owner'S Manual, Page: 36 / 73

2-1
2
2 Functional Description
Introduction
This chapter describes the Gigabit Ethernet/82543 PMC Module on a
feature and block diagram level.
Figure 2-1 on page 2-2 shows a block
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:
❏
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