Connector Descriptions
LITE5200B User’s Manual, Rev. 0
Freescale Semiconductor
4-7
4.5.4.1
Decoupling Ethernet
–
J9
If it is desired to use the ethernet pins of the MPC5200 for other than ethernet functions the buffer between
the ethernet transceiver and the 5200 must be disabled. This is done by installing a shorting jumper on
header J9. Note that the ETH_TXCLK and ETH_RXCLK signals are hardwired between the MPC5200
and the ethernet transceiver and cannot be disconnected.
In this configuration these pins may be accessible through a general purpose header.
4.5.4.2
Ethernet JTAG
–
J15
A header is provided on the J15 connector which interfaces to the ethernet transceiver IC. Please refer to
documentation on the LXT971ALE ethernet transceiver for more information.
Table 4-9. Ethernet Connector – J6
Pin
Function
1
TD+
2
TD-
3
RD+
4
RD-
5
AC GND
6
AC GND
7
AC GND
8
AC GND
Table 4-10. Ethernet Decoupling Jumper – J9
J9
10/100 BASE-T
ETHERNET
DECOUPLING
SWITCH
Ethernet transceiver disconnected
10/100 Base-T Setting
DEFAULT SETTING