Method and apparatus for issuing a command to store an instruction and load resultant data in a microcontroller

  • US 7,437,535 B1
  • Filed: 11/01/2004
  • Issued: 10/14/2008
  • Est. Priority Date: 04/04/2002
  • Status: Expired due to Fees
First Claim
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1. A memory accessing method comprising:

  • (1) executing a first instruction by a first processor, the first instruction specifying an address of a memory location and an operation to be performed on the memory location;

    wherein executing the first instruction comprises the first processor sending information to a co-processor, the information specifying the address of the memory location and the operation to be performed;

    wherein the first processor executes the first instruction without performing the operation and without accessing the memory location;

    (2) performing the operation by the co-processor;

    wherein the memory location is in a memory and the first processor executes the first instruction without accessing the memory;

    the first processor sends the information to the co-processor via a first interface directly connected to the first processor and the co-processor but not to the memory; and

    performing the operation by the co-processor comprises the co-processor accessing the memory via a second interface directly connected to the co-processor and the memory but not to the first processor.

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