Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

bidirectional buffer implementation

Hi, How to implement the bidirectional buffer without direction control in FPGA ?. Regards IHG
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

a "buffer" in VHDL isnt really anything more than a register, not a bidirectional IO pin.

And without a direction control, you dont know when to drive the output bus to 'Z'