DDR SDRAM DRAM A DRAM ASSIST ERROR CORRECTION MECHANISM FOR DDR SDRAM INTERFACE

摘要

Provided is a method of correcting a memory error of a dynamic random-access memory module (DRAM) by using a double data rate (DDR) interface. The method comprises the steps of: conducting a memory transaction including multiple bursts with a memory controller to send data from data chips of the DRAM to a memory controller; detecting one or more errors using an ECC chip of the DRAM, determining the number of the bursts having the errors by using the ECC chip of the DRAM; determining whether the number of the bursts having the errors is greater than a threshold number; determining a type of the errors; and directing the memory controller based on the determined type of the errors, wherein the DRAM includes a single ECC chip per memory channel.