JPS647242A - Store control system for channel control unit - Google Patents

Store control system for channel control unit

Info

Publication number
JPS647242A
JPS647242A JP16355087A JP16355087A JPS647242A JP S647242 A JPS647242 A JP S647242A JP 16355087 A JP16355087 A JP 16355087A JP 16355087 A JP16355087 A JP 16355087A JP S647242 A JPS647242 A JP S647242A
Authority
JP
Japan
Prior art keywords
store
signal
transferring
channel device
error 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.)
Pending
Application number
JP16355087A
Other languages
Japanese (ja)
Inventor
Masato Maebayashi
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 JP16355087A priority Critical patent/JPS647242A/en
Publication of JPS647242A publication Critical patent/JPS647242A/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
    • G06F13/10—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)

Abstract

PURPOSE:To obtain a high continuous transferring speed and to properly inform a channel device of error information at a store transferring operating time by adding the error information to a return signal when an error is generated in a store transferring and returning the signal. CONSTITUTION:Based on a store request REQ from a channel device 1, a channel control unit 2 sends the store request MRQ to a main storage MS. At a time point an accept signal ACP is received to show the MRQ is received, a return signal RTN is returned to the channel device 1. When an error is generated in a store transferring, error information are added to the return signal RTN without waiting for the accept ACP signal at the next store request REQ time. When the store transmission is finished, the return RTN signal is returned based on an END signal from the main storage MS. Thus, a high continuous transferring speed can be obtained and the channel device 1 can be properly informed of the error information at the store transferring operating time.
JP16355087A 1987-06-30 1987-06-30 Store control system for channel control unit Pending JPS647242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16355087A JPS647242A (en) 1987-06-30 1987-06-30 Store control system for channel control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16355087A JPS647242A (en) 1987-06-30 1987-06-30 Store control system for channel control unit

Publications (1)

Publication Number Publication Date
JPS647242A true JPS647242A (en) 1989-01-11

Family

ID=15776028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16355087A Pending JPS647242A (en) 1987-06-30 1987-06-30 Store control system for channel control unit

Country Status (1)

Country Link
JP (1) JPS647242A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0713918A (en) * 1993-01-29 1995-01-17 Internatl Business Mach Corp <Ibm> Data transfer method and data-processing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0713918A (en) * 1993-01-29 1995-01-17 Internatl Business Mach Corp <Ibm> Data transfer method and data-processing system

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