Need help with bus interfacing! =s

[diesdi]

Hi, I've just started using EPLD and programming in vhdl and I'm having some problems with the bus interfaces.

I have designed some 3 bits registers that have their outputs conected to the same bus and depending on an enable signal, I must put the outputs in high-impedance for all but one. But the compiler keeps giving me some errors about being unable of doing so. I've read something about using multiplexers put I do not have enough pins on the EPLD to do so...

Can someone tell me how to put the register outputs in high impedance??

Thanks in advance!!

 

[JacquesKleynhans]

well its usually something like this:

output <= values when (enable = '1') else (others => 'Z')