JPS5456336A - Diagnosis system for processor - Google Patents

Diagnosis system for processor

Info

Publication number
JPS5456336A
JPS5456336A JP12236277A JP12236277A JPS5456336A JP S5456336 A JPS5456336 A JP S5456336A JP 12236277 A JP12236277 A JP 12236277A JP 12236277 A JP12236277 A JP 12236277A JP S5456336 A JPS5456336 A JP S5456336A
Authority
JP
Japan
Prior art keywords
diagnosis
scan
data
channel
group
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
JP12236277A
Other languages
Japanese (ja)
Inventor
Hiroshi Tanigaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12236277A priority Critical patent/JPS5456336A/en
Publication of JPS5456336A publication Critical patent/JPS5456336A/en
Pending legal-status Critical Current

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  • Hardware Redundancy (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To reduce the quantity of diagnosis data as well as the hardware to store the data, by using the same diagnosis data for diagnosis of plural units of the processor constituted with the same circuit.
CONSTITUTION: Channel 20 and 30 constituted with the same circuit as the diagnosed devices are connected to channel control unit 10. At the same time, both the diagnosis data and the conversion table only for channel 20, for example, are prepared to main memory MM. As for channel 30, the address conversion is given for the scan-in data and the expected value via the diagnosis data of channel 20 stored in MM, and the conversion table is used for the scan-in and scan-out addresses, and then the diagnosis is carried out. In other words, ther conversion table is used to convert the scan-in and scan-out addresses from FF group 11 and 21 to 13 and 31 respectively. The scan-in data is then put into FF group 12 and 13, and the scan-out data of group 31 is compared with the expected value then. Thus, the diagnosis is carried out for diagnosis logic part 32
COPYRIGHT: (C)1979,JPO&Japio
JP12236277A 1977-10-14 1977-10-14 Diagnosis system for processor Pending JPS5456336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12236277A JPS5456336A (en) 1977-10-14 1977-10-14 Diagnosis system for processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12236277A JPS5456336A (en) 1977-10-14 1977-10-14 Diagnosis system for processor

Publications (1)

Publication Number Publication Date
JPS5456336A true JPS5456336A (en) 1979-05-07

Family

ID=14834001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12236277A Pending JPS5456336A (en) 1977-10-14 1977-10-14 Diagnosis system for processor

Country Status (1)

Country Link
JP (1) JPS5456336A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6375845A (en) * 1986-09-18 1988-04-06 Fujitsu Ltd Testing system for ras circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6375845A (en) * 1986-09-18 1988-04-06 Fujitsu Ltd Testing system for ras circuit

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