AN2757 Freescale Semiconductor / Motorola, AN2757 Datasheet - Page 34

• Manufacturer Part Number: AN2757
• Description: MPC5200 Quick Start
• Manufacturer: Freescale Semiconductor / Motorola

Graphical Configuration Tool
Figure 34. Controller Area Network Control Page (CAN)
6.6.15
Fast Ethernet Controller (FEC)
The Fast Ethernet Controller of the MPC5200 implements an interface to the standard 10/100 MB IEEE 802.3 ethernet network.
For its operation, it requires an external ethernet transceiver (PHY) with which the MPC5200 communicates either directly (AMD
industry standard interface) or over the Media Independent Interface (MII) defined by IEEE 802.3 standard.
The GCT can be used to define initial configuration of the FEC controller as well as to specify parameters which are to be
downloaded into the ethernet transceiver over the MII. Two key PHY registers can be configured graphically in the GCT (the
control and auto-negotiation registers). There is also a way how to specify initial values of the custom PHY registers not defined
by the IEEE standard, for example the LED control registers of the Intel LXT971 used on the Lite5200 board.
AN2757 MPC5200 Quick Start and Graphical Configuration Tool
34
Freescale Semiconductor