SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
The PAT engine of the DMM is composed of a 32-k entry physical address translation vector table and one or two refill engines. The refill engine is a specialized DMA for refilling the content of the PAT table.
The address translation mechanism is available only when the incoming request hits a page mode or tiled mode container; that is, when the incoming address targets the TILER or its aliased view in the system addressing space. Otherwise, the PAT logic is bypassed so that the resulting physical address corresponds to the input address.
The PAT engine supports multiple address translation schemes, called views, which can be bound to one or more initiators through a view mapping mechanism.