Forum Discussion

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

Bidirectional buffer

Hi, I am working on Altera FPGA. Please help me to code a Bidirectional bus using HDL. Can anyone share a code for this. Regards, freak
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Note that FGPAs only support tri-state bufers for I/O signals.

There is no tri-state capability for internal signals.

However, if you use tri-state driven internal signals, Quartus will try to reproduce the behavior using multiplexers.