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Altera_Forum
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15 years ago

Difference between IORD_32DIRECT and IORD_ALTERA_AVALON_PIO_DATA

Hallo, could someone explain me the difference between IORD_ALTERA_AVALON_PIO_DATA and IORD_32DIRECT? When should I use which? Thanks Sim
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Ok. That means, if I use both commands for a PIO, they work similar. Right?

But wherefrom does IORD_ALTERA_AVALON_PIO_DATA know the width of the data?

I mean in the other case I specify 8, 16 or 32 Bit. And what does IORD_ALTERA_AVALON_PIO_DATA if the width is 33Bit for example?