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Microprocessor memory test circuit and method

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专利名称:Microprocessor memory test circuit and

method

发明人:Gianluca Petrosino申请号:US08/579007申请日:19951227公开号:US05712822A公开日:19980127

摘要:A circuit and method for testing on-chip memory for a microprocessor or amicrocomputer is disclosed. The memory test circuit includes an input register, an outputregister, an adder, and a sequencer to control the test process. The process includesreceiving a simple communication protocol from the control unit to start the test,running a common memory test such as a checker board, AAAAh, 5555h and the like, andthen storing the test results in an output register. The test circuit can include a bi-directional RESET signal means for disabling the system while the microprocessor ormicrocomputer runs its memory test.

申请人:SGS-THOMSON MICROELECTRONICS, INC.

代理人:David V. Carlson,Theodore E. Galanthay,Lisa K. Jorgenson

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