Freescale Semiconductor MCF5480 - Manual (Page 931)

MCF548x Reference Manual, Rev. 3
Freescale Semiconductor 30-1
Chapter 30
Fast Ethernet Controller (FEC)
30.1 Introduction
This Fast Ethernet Controller (FEC) chapter provides a functional block diagram, a feature-set overview,
and transceiver connection information for both the 10 and 100 Mbps MII (Media Independent Interface),
as well as the 7-wire serial interface. Additionally, detailed descriptions of operation and the programming
model are included.
30.1.1 MCF548x Family Products
The number of FECs supported varies for different members of the MCF548x family as shown in
Table 30-1 .
30.1.2 Block Diagram
The block diagram of the FEC is shown below. The FEC is implemented with a combination of hardware
and microcode. The off-chip (Ethernet) interfaces are compliant with industry and IEEE 802.3 standards.
Table 30-1. MCF548x Family Products
Product Number of FECs supported
MCF5485 Two FECs
MCF5484 Two FECs
MCF5483 One FEC
MCF5482 One FEC
MCF5481 Two FECs
MCF5480 Two FECs