I don't use gigabit Ethernet. Do I leave the tsec_gtx_clk125 pin unconnected or tie it to ground or VCC? The databook does not mention anything.
Connect the GTX_CLK125 through 1 - 4.7 kOhm to GND.
Reference:
AN3438 - MPC8315 Design Checklist:
http://cache.nxp.com/files/32bit/doc/app_note/AN3438.pdf
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