BOARD-LEVEL BUILT-IN SELF-REPAIR METHOD OF RAM

BOARD-LEVEL BUILT-IN SELF-REPAIR METHOD OF RAM

TN407; This paper describes the method of built-in self-repairing of RAM on board,designs hardware circuit,and logic for the RAM's faults self-repairing system based on FPGA.The key technology is that it utilizes FPGA to test RAM according to some algorithm to find out failure memory units and...

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Veröffentlicht in:电子科学学刊（英文版） 2012, Vol.29 (1), p.128-131
Hauptverfasser: Dou Yanjie, Zhan Huiqin, Chen Yakun, Shang Hongliang
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Sprache:eng
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container_issue 1
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container_title 电子科学学刊（英文版）
container_volume 29
creator Dou Yanjie
Zhan Huiqin
Chen Yakun
Shang Hongliang
description TN407; This paper describes the method of built-in self-repairing of RAM on board,designs hardware circuit,and logic for the RAM's faults self-repairing system based on FPGA.The key technology is that it utilizes FPGA to test RAM according to some algorithm to find out failure memory units and replace the faulty units with FPGA.Then it can build a memory that has no fault concern to external controller,and realizes the logic binding between external controller and RAM.Micro Controller Unit (MCU) can operate external RAM correctly even if RAM has some fault address units.Conventional MCS-51 is used to simulate the operation of MCU operating external memory.Simulation shows FPGA can complete the faulty address units' mapping and MCU can normally read and write external RAM.This design realizes the RAM's built-in self-repairing on board.
doi_str_mv 10.1007/sl1767-012-0745-7
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title BOARD-LEVEL BUILT-IN SELF-REPAIR METHOD OF RAM
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