JPS57207923A - Transferring device of status information of input- output device - Google Patents

Transferring device of status information of input- output device

Info

Publication number
JPS57207923A
JPS57207923A JP56093190A JP9319081A JPS57207923A JP S57207923 A JPS57207923 A JP S57207923A JP 56093190 A JP56093190 A JP 56093190A JP 9319081 A JP9319081 A JP 9319081A JP S57207923 A JPS57207923 A JP S57207923A
Authority
JP
Japan
Prior art keywords
controller
input
processing
status information
signals
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
JP56093190A
Other languages
Japanese (ja)
Other versions
JPS645338B2 (en
Inventor
Shuji Murakami
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56093190A priority Critical patent/JPS57207923A/en
Publication of JPS57207923A publication Critical patent/JPS57207923A/en
Publication of JPS645338B2 publication Critical patent/JPS645338B2/ja
Granted 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
    • G06F13/10—Program control for peripheral devices
    • G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
    • G06F13/122—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware performs an I/O function other than control of data transfer

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To efficiently transfer the status information to the arithmetic controller, by installing a selector which selectively outputs the status information of the input-output device to the input-output controller and a register which holds the status information. CONSTITUTION:When an input-output instruction is outputted from an arithmetic controller to an input-output controller 4, apparatus select signals UL1 and UL0 assigned from the controller 4 are outputted to I/O UNs 0-3 and a selector 10, and ready signals RDY0-RDY3 from prescribed I/Os are selectively inputted into the unit 4 through the selector 10, and thus, the processing is executed. This processing is performed only for a preset time. When the 2nd I/O is accessed from the arithmetic controller, the signals RDY0- RDY3 are held in a register 20 and the signals are transferred to the arithmetic controller. After a prearranged time, a reset signal FWCLR is inputted into the controller 4 through a gate 30 and the processing for the 1st I/O is temporarily stopped, and then, the processing for the 2nd I/O is performed for a prescribed time. After the Prescribed time has passed, the processing, for the 1st I/O is again started.
JP56093190A 1981-06-17 1981-06-17 Transferring device of status information of input- output device Granted JPS57207923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56093190A JPS57207923A (en) 1981-06-17 1981-06-17 Transferring device of status information of input- output device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56093190A JPS57207923A (en) 1981-06-17 1981-06-17 Transferring device of status information of input- output device

Publications (2)

Publication Number Publication Date
JPS57207923A true JPS57207923A (en) 1982-12-20
JPS645338B2 JPS645338B2 (en) 1989-01-30

Family

ID=14075655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56093190A Granted JPS57207923A (en) 1981-06-17 1981-06-17 Transferring device of status information of input- output device

Country Status (1)

Country Link
JP (1) JPS57207923A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173339B1 (en) 1997-12-26 2001-01-09 Fujitsu Limited System for monitoring execution of commands from a host for shared I/O devices by setting a time-out period based on control parameters sent by the host

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173339B1 (en) 1997-12-26 2001-01-09 Fujitsu Limited System for monitoring execution of commands from a host for shared I/O devices by setting a time-out period based on control parameters sent by the host

Also Published As

Publication number Publication date
JPS645338B2 (en) 1989-01-30

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