JPS5743221A - Data transfer system - Google Patents

Data transfer system

Info

Publication number
JPS5743221A
JPS5743221A JP11871580A JP11871580A JPS5743221A JP S5743221 A JPS5743221 A JP S5743221A JP 11871580 A JP11871580 A JP 11871580A JP 11871580 A JP11871580 A JP 11871580A JP S5743221 A JPS5743221 A JP S5743221A
Authority
JP
Japan
Prior art keywords
block
transfer
data transfer
data
unit
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
JP11871580A
Other languages
Japanese (ja)
Inventor
Yoshio Kobayashi
Kiyoshi Inoue
Kunio Kobayashi
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
Original Assignee
Fujitsu 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 filed Critical Fujitsu Ltd
Priority to JP11871580A priority Critical patent/JPS5743221A/en
Publication of JPS5743221A publication Critical patent/JPS5743221A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/28—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal

Abstract

PURPOSE:To make the large capacity data transfer efficient, by enabling to designate the basic unit length of data transfer in block or byte unit. CONSTITUTION:Normally, transfer in byte unit is made, but at the transfer mode in block unit, a block transfer mode input terminal is at 1 and the gate of an AND 10 is closed. The number of blocks of data for data transfer is inputted to the data length of a channel command word 1 and the in-block byte number defined by the user is set to a block register 4. The content is set to a counter 5 and the signal transmitted every data transfer end in byte unit decreases the content of the counter 5 one by one. As a result, the transfer end signal is produced for every transfer of block length.
JP11871580A 1980-08-28 1980-08-28 Data transfer system Pending JPS5743221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11871580A JPS5743221A (en) 1980-08-28 1980-08-28 Data transfer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11871580A JPS5743221A (en) 1980-08-28 1980-08-28 Data transfer system

Publications (1)

Publication Number Publication Date
JPS5743221A true JPS5743221A (en) 1982-03-11

Family

ID=14743299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11871580A Pending JPS5743221A (en) 1980-08-28 1980-08-28 Data transfer system

Country Status (1)

Country Link
JP (1) JPS5743221A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59176816A (en) * 1983-03-26 1984-10-06 Fujitsu Ltd Data transfer system
JPS6254355A (en) * 1985-09-02 1987-03-10 Panafacom Ltd Control system for designating capacity of data transfer
JPS62249257A (en) * 1986-04-23 1987-10-30 Pfu Ltd Data transfer processing system
JPS63142416A (en) * 1986-12-04 1988-06-14 Fujitsu Ltd Input/output control system
US5517670A (en) * 1992-12-30 1996-05-14 International Business Machines Corporation Adaptive data transfer channel employing extended data block capability
JP2008114896A (en) * 2006-11-07 2008-05-22 Kyocera Mita Corp Auxiliary plate for taking out packed product

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59176816A (en) * 1983-03-26 1984-10-06 Fujitsu Ltd Data transfer system
JPS6254355A (en) * 1985-09-02 1987-03-10 Panafacom Ltd Control system for designating capacity of data transfer
JPS62249257A (en) * 1986-04-23 1987-10-30 Pfu Ltd Data transfer processing system
JPS63142416A (en) * 1986-12-04 1988-06-14 Fujitsu Ltd Input/output control system
US5517670A (en) * 1992-12-30 1996-05-14 International Business Machines Corporation Adaptive data transfer channel employing extended data block capability
US5539918A (en) * 1992-12-30 1996-07-23 International Business Machines Corporation Extension of data block capability in a data transfer channel
JP2008114896A (en) * 2006-11-07 2008-05-22 Kyocera Mita Corp Auxiliary plate for taking out packed product

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