JPS5243334A - Data input output device - Google Patents

Data input output device

Info

Publication number
JPS5243334A
JPS5243334A JP50117726A JP11772675A JPS5243334A JP S5243334 A JPS5243334 A JP S5243334A JP 50117726 A JP50117726 A JP 50117726A JP 11772675 A JP11772675 A JP 11772675A JP S5243334 A JPS5243334 A JP S5243334A
Authority
JP
Japan
Prior art keywords
output device
data input
input output
transmission
transmission use
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
JP50117726A
Other languages
Japanese (ja)
Inventor
Hachiro Okamoto
Akira Kokubu
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 JP50117726A priority Critical patent/JPS5243334A/en
Publication of JPS5243334A publication Critical patent/JPS5243334A/en
Pending legal-status Critical Current

Links

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  • Information Transfer Systems (AREA)
  • Computer And Data Communications (AREA)

Abstract

PURPOSE: As for I/O which has a data buffer for transmission use, effective flag and that for re-transmission use are arranged, and when re-transmission is made, to promote elevation of the processing efficiency by selecting the effective flag for re-transmission use.
COPYRIGHT: (C)1977,JPO&Japio
JP50117726A 1975-10-01 1975-10-01 Data input output device Pending JPS5243334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50117726A JPS5243334A (en) 1975-10-01 1975-10-01 Data input output device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50117726A JPS5243334A (en) 1975-10-01 1975-10-01 Data input output device

Publications (1)

Publication Number Publication Date
JPS5243334A true JPS5243334A (en) 1977-04-05

Family

ID=14718754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50117726A Pending JPS5243334A (en) 1975-10-01 1975-10-01 Data input output device

Country Status (1)

Country Link
JP (1) JPS5243334A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144720A (en) * 1988-11-28 1990-06-04 Nec Corp Fifo control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144720A (en) * 1988-11-28 1990-06-04 Nec Corp Fifo control circuit

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