phyCORE-MCF548x
52
PHYTEC Messtechnik GmbH 2005 L-645e_1
8.4
Ethernet Interface
Connection of the phyCORE-MCF548x to the world wide web or a
local network is possible over the integrated FEC’s (Fast Ethernet
Controller) of the Freescale ColdFire processor. The processor
provides up to two FEC’s (MCF5485) depending on the actual
processor derivate populating the phyCORE module. These FEC’s
operate with a data transmission speed of 10 or 100 Mbit/s.
8.4.1
PHY Physical Layer Transceiver
The phyCORE-MCF548x has been designed for use in 10Base-T and
100Base-T networks. The 10/100Base-T interface with its LED
monitoring signals extends to phyCORE-connector X2. The MII
interface of the FEC’s is not available to the user. In order to connect
the module to an existing 10/100Base-T network some external
circuitry is required. It is important to note that the Physical Layer
Transceiver KS8721B (MICREL www.micrel.com) implemented on
the phyCORE-MCF548x operates with a 2.5 V supply voltage.
If you are using the applicable Development Board for the
phyCORE-MCF548x (part number PCM-982), the external circuitry
mentioned above is already integrated on the board (refer to
section 10).
The PHY address configured with the boot-strapping option is default
0x1 for both devices.
Summary of Contents for phyCORE-MCF548x
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Page 104: ...Published by PHYTEC Messtechnik GmbH 2005 Ordering No L 645e_1 Printed in Germany ...