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Honored Contributor
Honored Contributorabout EPM240 high impedance output
im now encounter a problem with EPM240 high impedance output,it seems like the io port has connected a low value R to the ground that drop down the voltage provided by other signal on the bus. ...
Altera_ForumHonored Contributor
Honored Contributoryes, it means that a tri state buffer is used for the output where adjlevel enables or disables this buffer with a permanent 0 or 1 on its input, but it doesn't say wheter or not some optional bus hold circuit, pull up, clamping diode, ... is added.
