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Patent Searching and Data


Title:
MEMORY COPYING SYSTEM
Document Type and Number:
Japanese Patent JPH0934741
Kind Code:
A
Abstract:

To directly execute memory copying without providing any common global memory, etc., when transferring memory contents in one system at the three-system CPU of redundant configuration to the memory of the other system.

At an input/output control part inside each CPU, a copy start address register 133 and an end address register 135 are provided and data are read out of the present system memory while successively counting up addresses stored in the register 133 by a plus one counter 137. Since this processing is continued until the address stored in the register 135 is reached (detected by an end check circuit 144), the memory copying is performed.


Inventors:
Watabe, Shinji
Hirayama, Shuya
Application Number:
JP1995000180406
Publication Date:
February 07, 1997
Filing Date:
July 17, 1995
Export Citation:
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Assignee:
NEC ENG LTD
International Classes:
G06F11/18; G06F12/02; G06F12/08; G06F15/16; (IPC1-7): G06F11/18; G06F12/02; G06F15/16
Attorney, Agent or Firm:
京本 直樹 (外2名)