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DMA device with local page table

  • US 5,864,876 A
  • Filed: 01/06/1997
  • Issued: 01/26/1999
  • Est. Priority Date: 01/06/1997
  • Status: Expired due to Term
First Claim
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1. A DMA device configured to process multiple channels of data specified by virtual addresses and adapted for attachment to a bus coupled to a central microprocessor and a main memory, said device comprising:

  • a local memory for storing page translations for page addresses in a plurality of address map registers, with at least one address map register associated with each of said channels, for enabling direct retrieval of physical addresses of said main memory corresponding to virtual addresses; and

    a controller for generating physical addresses in said main memory.

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