JPS55105719A - Buffer device - Google Patents

Buffer device

Info

Publication number
JPS55105719A
JPS55105719A JP1336879A JP1336879A JPS55105719A JP S55105719 A JPS55105719 A JP S55105719A JP 1336879 A JP1336879 A JP 1336879A JP 1336879 A JP1336879 A JP 1336879A JP S55105719 A JPS55105719 A JP S55105719A
Authority
JP
Japan
Prior art keywords
data
buffer
content
register
information
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
JP1336879A
Other languages
Japanese (ja)
Other versions
JPS5756731B2 (en
Inventor
Akira Ando
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 JP1336879A priority Critical patent/JPS55105719A/en
Publication of JPS55105719A publication Critical patent/JPS55105719A/en
Publication of JPS5756731B2 publication Critical patent/JPS5756731B2/ja
Granted legal-status Critical Current

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  • Debugging And Monitoring (AREA)

Abstract

PURPOSE: To detect the malfunction of the unit, by checking whether or not the additional information output together is according to a given information series at the output of each data, by adding the information recognizable the input order to the data inputted to the data buffer.
CONSTITUTION: The data buffer 21 has the memory unit of 16 stages, from +0W +15 in +4-bit for 1 byte for the data width. The number generators 22, 23 generate respectively equal series number, they are added by one with the address renewal numbers 11, 12, and they are constituted with the counter in 4-bit. The number information is set to the number register 24 from the generator 22, and the content is stored in the same memory location as the buffer 21 together with the content of the data register 3. Accordingly, when data is read out from the buffer 21, the number information is made together. The number information read out from the buffer 21 is set to the number register 25, the comparison circuit 26 compares the content of the register 25 with the content of the generator 23 and outputs signal when the both are not in agreement.
COPYRIGHT: (C)1980,JPO&Japio
JP1336879A 1979-02-09 1979-02-09 Buffer device Granted JPS55105719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1336879A JPS55105719A (en) 1979-02-09 1979-02-09 Buffer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1336879A JPS55105719A (en) 1979-02-09 1979-02-09 Buffer device

Publications (2)

Publication Number Publication Date
JPS55105719A true JPS55105719A (en) 1980-08-13
JPS5756731B2 JPS5756731B2 (en) 1982-12-01

Family

ID=11831141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1336879A Granted JPS55105719A (en) 1979-02-09 1979-02-09 Buffer device

Country Status (1)

Country Link
JP (1) JPS55105719A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6016400U (en) * 1983-07-07 1985-02-04 株式会社明電舎 First-in, first-out buffer malfunction detection circuit
JPS61208134A (en) * 1985-03-12 1986-09-16 Nec Corp Error detection system in information processor
JPH08221331A (en) * 1995-02-13 1996-08-30 Nec Corp Circuit and method for detecting memory slip
WO2007099584A1 (en) * 2006-02-28 2007-09-07 Fujitsu Limited Error detector

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6016400U (en) * 1983-07-07 1985-02-04 株式会社明電舎 First-in, first-out buffer malfunction detection circuit
JPS61208134A (en) * 1985-03-12 1986-09-16 Nec Corp Error detection system in information processor
JPH08221331A (en) * 1995-02-13 1996-08-30 Nec Corp Circuit and method for detecting memory slip
WO2007099584A1 (en) * 2006-02-28 2007-09-07 Fujitsu Limited Error detector
JP4834722B2 (en) * 2006-02-28 2011-12-14 富士通株式会社 Arithmetic processing device and control method of arithmetic processing device
US8196028B2 (en) 2006-02-28 2012-06-05 Fujitsu Limited Error detection device

Also Published As

Publication number Publication date
JPS5756731B2 (en) 1982-12-01

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