JPH01310449A - Fault processing system - Google Patents

Fault processing system

Info

Publication number
JPH01310449A
JPH01310449A JP63140782A JP14078288A JPH01310449A JP H01310449 A JPH01310449 A JP H01310449A JP 63140782 A JP63140782 A JP 63140782A JP 14078288 A JP14078288 A JP 14078288A JP H01310449 A JPH01310449 A JP H01310449A
Authority
JP
Japan
Prior art keywords
fault
central processing
port part
processing units
parity
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
JP63140782A
Other languages
Japanese (ja)
Other versions
JPH0795285B2 (en
Inventor
Akira Jitsupou
Itaru Okano
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.)
KOFU NIPPON DENKI KK
KOUFU NIPPON DENKI KK
NEC Corp
Original Assignee
KOFU NIPPON DENKI KK
KOUFU NIPPON DENKI KK
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 KOFU NIPPON DENKI KK, KOUFU NIPPON DENKI KK, NEC Corp filed Critical KOFU NIPPON DENKI KK
Priority to JP63140782A priority Critical patent/JPH0795285B2/en
Publication of JPH01310449A publication Critical patent/JPH01310449A/en
Publication of JPH0795285B2 publication Critical patent/JPH0795285B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To prevent failure of a system consists of plural central processing units by separating the central processing units from the system when it is decided that a fault occurs at the port part of the central processing units.
CONSTITUTION: When a fault is detected by a fault detecting circuit 24, a parity error is reported to a fault detecting reporting part 25. The information from the reporting circuit 25 is received, and a port part fault detecting circuit 28 decides whether or not the fault is the trouble of the port part of a central processing processor 4. When it is decided that the fault is the port part trouble of the central processing processor 4, the influence due to the port part fault of a central processor 4 is not spread into the internal part of a system control device 2, and as such, the parity signal of the main memory access signal is inverted by a parity inverting circuit 26. Thus, since the fault due to the main memory access signal is not detected in the internal part of the system control device 2 thereafter, the system down does not occur.
COPYRIGHT: (C)1989,JPO&Japio
JP63140782A 1988-06-08 1988-06-08 Fault handling method Expired - Fee Related JPH0795285B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63140782A JPH0795285B2 (en) 1988-06-08 1988-06-08 Fault handling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63140782A JPH0795285B2 (en) 1988-06-08 1988-06-08 Fault handling method

Publications (2)

Publication Number Publication Date
JPH01310449A true JPH01310449A (en) 1989-12-14
JPH0795285B2 JPH0795285B2 (en) 1995-10-11

Family

ID=15276619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63140782A Expired - Fee Related JPH0795285B2 (en) 1988-06-08 1988-06-08 Fault handling method

Country Status (1)

Country Link
JP (1) JPH0795285B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61221849A (en) * 1985-03-27 1986-10-02 Nec Corp Bus control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61221849A (en) * 1985-03-27 1986-10-02 Nec Corp Bus control system

Also Published As

Publication number Publication date
JPH0795285B2 (en) 1995-10-11

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