JPS6476335A - Data processing system - Google Patents

Data processing system

Info

Publication number
JPS6476335A
JPS6476335A JP62235556A JP23555687A JPS6476335A JP S6476335 A JPS6476335 A JP S6476335A JP 62235556 A JP62235556 A JP 62235556A JP 23555687 A JP23555687 A JP 23555687A JP S6476335 A JPS6476335 A JP S6476335A
Authority
JP
Japan
Prior art keywords
address
access
ras
confirmation
functions
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.)
Granted
Application number
JP62235556A
Other languages
Japanese (ja)
Other versions
JP2588903B2 (en
Inventor
Masahiro Kawakatsu
Osamu Moriyama
Kazuyoshi Okabe
Osamu Katakura
Hideyuki Sugawara
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.)
Fujitsu Ltd
PFU Ltd
Original Assignee
Fujitsu Ltd
PFU Ltd
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 Fujitsu Ltd, PFU Ltd filed Critical Fujitsu Ltd
Priority to JP62235556A priority Critical patent/JP2588903B2/en
Publication of JPS6476335A publication Critical patent/JPS6476335A/en
Application granted granted Critical
Publication of JP2588903B2 publication Critical patent/JP2588903B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE:To easily confirm RAS (reliability, availability and serviceability) functions by giving an access to an address space provided exclusively for confirmation of the RAS functions. CONSTITUTION:A space exclusive for confirmation of the RAS functions is secured at a part of an entire address space and a data processor 1 gives an access to said space. Thus an address bit is partly converted into the contents of a conversion address register 91 which are set previously. Then a AND circuit 93 opens when the converted address shows an area of a main memory added with an ECC (error correction code). Thus a modifying access of the ECC is carried out and the circuit 93 opens in case the converted address shows an interface area added with a parity. Thus a parity modifying access is carried out. As a result, the procedure is simply carried out for confirmation of the RAS functions.
JP62235556A 1987-09-18 1987-09-18 Data processing system Expired - Lifetime JP2588903B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62235556A JP2588903B2 (en) 1987-09-18 1987-09-18 Data processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62235556A JP2588903B2 (en) 1987-09-18 1987-09-18 Data processing system

Publications (2)

Publication Number Publication Date
JPS6476335A true JPS6476335A (en) 1989-03-22
JP2588903B2 JP2588903B2 (en) 1997-03-12

Family

ID=16987732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62235556A Expired - Lifetime JP2588903B2 (en) 1987-09-18 1987-09-18 Data processing system

Country Status (1)

Country Link
JP (1) JP2588903B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617367B2 (en) 2006-06-27 2009-11-10 International Business Machines Corporation Memory system including a two-on-one link memory subsystem interconnection

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5936398A (en) * 1982-08-24 1984-02-28 Nec Corp Storage device
JPS60101649A (en) * 1983-11-07 1985-06-05 Mitsubishi Electric Corp Diagnosis device of electronic computer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5936398A (en) * 1982-08-24 1984-02-28 Nec Corp Storage device
JPS60101649A (en) * 1983-11-07 1985-06-05 Mitsubishi Electric Corp Diagnosis device of electronic computer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617367B2 (en) 2006-06-27 2009-11-10 International Business Machines Corporation Memory system including a two-on-one link memory subsystem interconnection

Also Published As

Publication number Publication date
JP2588903B2 (en) 1997-03-12

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