title: tie two inout together vhdl
body: <p>I want to drive a birectionnal logic signal through the FPGA.
  PGD_ICD &lt;--> PGD_TARGET
  for those who have recognized the Microchip ICD3 you know that PGD line is bidirectional.
  I've read that we can't do something like that but have you any idea ?
  many thanks</p>