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Altera_Forum's avatar
Altera_Forum
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16 years ago

Why PIO does not follow addressing rules ?

I am currently designing a custom peripheral and I have some problems with the data width. My peripheral is 8-bit data width and I would like that the access to a register takes place in the same man...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

The PIO actually has a 32-bit avalon interface regardless of how many bits you specify the PIO to be. The simplest thing for you to do is to make your custom peripheral have a 32 bit data bus, even if you're not using all of it.

Jake