WRITE-BACK TYPE CACHE SYSTEM

PURPOSE: To reduce the influence of write-back to a master device in a write- back type cache. CONSTITUTION: Data to be transferred front the master device 1 to an I/O device 51 are temporarily stored in a cache memory 315. Until an I/O controller 3n is started from the master device 1, a write-back...

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Bibliographic Details
Main Authors FURUYUI AKIO, FUKAYA YASUKATSU
Format Patent
LanguageEnglish
Published 17.05.1996
Edition6
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:PURPOSE: To reduce the influence of write-back to a master device in a write- back type cache. CONSTITUTION: Data to be transferred front the master device 1 to an I/O device 51 are temporarily stored in a cache memory 315. Until an I/O controller 3n is started from the master device 1, a write-back permission flag 3n8 is validated. When write-back processing for data stored in a cache memory 3n5 is necessary, a write-back request flag 3n9 is validated. When both the flags 3n8, 3n9 are valid, the I/O controller 3n generates an interruption to a control part 3n3 and write-back processing is executed based on write-back processing subroutine processing stored in a program storing part 3n1.
Bibliography:Application Number: JP19940254987