JPS56110128A - Data transfer system - Google Patents

Data transfer system

Info

Publication number
JPS56110128A
JPS56110128A JP1328280A JP1328280A JPS56110128A JP S56110128 A JPS56110128 A JP S56110128A JP 1328280 A JP1328280 A JP 1328280A JP 1328280 A JP1328280 A JP 1328280A JP S56110128 A JPS56110128 A JP S56110128A
Authority
JP
Japan
Prior art keywords
register
data
processor
read
full
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
JP1328280A
Other languages
Japanese (ja)
Other versions
JPS5932813B2 (en
Inventor
Takashi Nakamura
Shigeru Ogasawara
Masao Aoyama
Setsuo Shimada
Yasuhiko Makiura
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
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon Electric Co 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, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP1328280A priority Critical patent/JPS5932813B2/en
Publication of JPS56110128A publication Critical patent/JPS56110128A/en
Publication of JPS5932813B2 publication Critical patent/JPS5932813B2/en
Expired 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
    • G06F13/24—Handling requests for interconnection or transfer for access to input/output bus using interrupt

Abstract

PURPOSE:To make it possible to exactly transfer a data without requiring many registers, by generating an interruption signal when the transfer register has become vacant after reading it to the processor that said register is full. CONSTITUTION:When a data to be transferred has been generated, a state of the latch FF-1 which has been defined to the address (b) is read. As a result, if it is shown that the FF-1 is vacant, it is possible to write in the register RG, and a data is written in the register RG. On the other hand, when a state of the FF-1 has been read, if it is displayed that the FF-1 is full, the program of the processor P is unable to write a data in the register RG. In this case, the hardware stores by the latch FF- 2 that it has been read into the processor P that the FF-1 is full, and after that, when the register RG has become vacant, an interruption signal I is generated. The program writes a data into the register RG by detecting this interruption.
JP1328280A 1980-02-06 1980-02-06 Data transfer method Expired JPS5932813B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1328280A JPS5932813B2 (en) 1980-02-06 1980-02-06 Data transfer method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1328280A JPS5932813B2 (en) 1980-02-06 1980-02-06 Data transfer method

Publications (2)

Publication Number Publication Date
JPS56110128A true JPS56110128A (en) 1981-09-01
JPS5932813B2 JPS5932813B2 (en) 1984-08-11

Family

ID=11828837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1328280A Expired JPS5932813B2 (en) 1980-02-06 1980-02-06 Data transfer method

Country Status (1)

Country Link
JP (1) JPS5932813B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01154233A (en) * 1987-12-11 1989-06-16 Toshiba Corp Interruption processor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01154233A (en) * 1987-12-11 1989-06-16 Toshiba Corp Interruption processor

Also Published As

Publication number Publication date
JPS5932813B2 (en) 1984-08-11

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