DESTRUCTIVE READ ARCHITECTURE FOR DYNAMIC RANDOM ACCESS MEMORY

摘要

PROBLEM TO BE SOLVED: To improve access cycle time of a dynamic random access memory (DRAM) system having a plurality of memory cells constituted of rows and columns. SOLUTION: A method comprises a step in which a destructive read mode is enabled, the destruction read mode is a mode for read out destructively a bit of information stored in a DRAM memory cell being addressed. A bit in which information is read destructively is stored temporarily in a temporary storage device. A delay write-back-mode is enabled, this delay write-back-mode is a mode for restoring bit of information in the DRAM memory cell being addressed afterward. Then, execution of the delay write-back-mode is scheduled in accordance with availability of space in the temporary storage device. COPYRIGHT: (C)2007,JPO&INPIT