| 摘要 |
PURPOSE: To speedily correct an error by simple processing by correcting error based on both of an inverting and retesting sequence and the analysis of syndrome. CONSTITUTION: An error correction device includes an SPE decoder 20. A bus 28 supplies a syndrome calculated by a syndrome decoder 26 for a sum syndrome circuit 24, a syndrome register 25 and the SPE decoder 20. The output bus 90 of the SPI decoder 20 transmits a package number with a hard error and an output bus 33 transmits the position of a fault bit in a package. These outputs are supplied for a logical circuit consisting of an XOR gate, an OR gate, etc., to specify and correct the position of the error. |
