JPS62283462A - Magnetic disk controller - Google Patents

Magnetic disk controller

Info

Publication number
JPS62283462A
JPS62283462A JP61126192A JP12619286A JPS62283462A JP S62283462 A JPS62283462 A JP S62283462A JP 61126192 A JP61126192 A JP 61126192A JP 12619286 A JP12619286 A JP 12619286A JP S62283462 A JPS62283462 A JP S62283462A
Authority
JP
Japan
Prior art keywords
data
write
correction code
error
magnetic disk
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP61126192A
Other languages
Japanese (ja)
Inventor
Hiroshi Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP61126192A priority Critical patent/JPS62283462A/en
Publication of JPS62283462A publication Critical patent/JPS62283462A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To recognize a data being in error at read and not written normally by inverting an added error detection correction code to a write data detecting a data under run at write.
CONSTITUTION: In detecting the data under run, a processing circuit 130 drives a circuit 140 to generate an error detection correction code being the inversion of the normal value, transfers the result to a buffer 120, where the write data stored therein and the data added with the correction code are written in a magnetic disk device. In reading a data block having a data run at the data write, the central processing unit judges the occurrence of a data error and that the block is defective.
COPYRIGHT: (C)1987,JPO&Japio
JP61126192A 1986-05-31 1986-05-31 Magnetic disk controller Pending JPS62283462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61126192A JPS62283462A (en) 1986-05-31 1986-05-31 Magnetic disk controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61126192A JPS62283462A (en) 1986-05-31 1986-05-31 Magnetic disk controller

Publications (1)

Publication Number Publication Date
JPS62283462A true JPS62283462A (en) 1987-12-09

Family

ID=14928975

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61126192A Pending JPS62283462A (en) 1986-05-31 1986-05-31 Magnetic disk controller

Country Status (1)

Country Link
JP (1) JPS62283462A (en)

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