JPS57132228A - Channel device - Google Patents

Channel device

Info

Publication number
JPS57132228A
JPS57132228A JP1701681A JP1701681A JPS57132228A JP S57132228 A JPS57132228 A JP S57132228A JP 1701681 A JP1701681 A JP 1701681A JP 1701681 A JP1701681 A JP 1701681A JP S57132228 A JPS57132228 A JP S57132228A
Authority
JP
Japan
Prior art keywords
register
interface
signal
microprogram
request
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
JP1701681A
Other languages
Japanese (ja)
Other versions
JPH0370265B2 (en
Inventor
Taichi Sugiyama
Yoshihiko Kadowaki
Tadashi Sato
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 JP1701681A priority Critical patent/JPS57132228A/en
Publication of JPS57132228A publication Critical patent/JPS57132228A/en
Publication of JPH0370265B2 publication Critical patent/JPH0370265B2/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
    • G06F13/124—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware is a sequential transfer control unit, e.g. microprocessor, peripheral processor or state-machine

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To perform channel control efficiently by detecting a change in input signal, by sending a request for processing to a microprogram controlling part, and by advancing the processing while referring to the advance state of an I/O interface by a responding microprogram. CONSTITUTION:Plural channel units CH610 are provided, and a microprogram controlling part MC600 controls the execution of microinstructions of an arithmethic processor BPU601. An input signal register 611 inputs a signal from an I/O interface and an output signal register 612 sets a signal to be sent out to the I/O interface. For this purpose, signals inputted to the register 611 are monitored by rise and fall detecting circuits 618 and 617 to detect their changes, thereby sending a request for processing to the MC600. The execution of a microprogram responding to this request is advanced by referring to the contents of a buffer register 616 which shows the advance state of the I/O interface, thus setting a signal to a register 612.
JP1701681A 1981-02-09 1981-02-09 Channel device Granted JPS57132228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1701681A JPS57132228A (en) 1981-02-09 1981-02-09 Channel device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1701681A JPS57132228A (en) 1981-02-09 1981-02-09 Channel device

Publications (2)

Publication Number Publication Date
JPS57132228A true JPS57132228A (en) 1982-08-16
JPH0370265B2 JPH0370265B2 (en) 1991-11-07

Family

ID=11932192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1701681A Granted JPS57132228A (en) 1981-02-09 1981-02-09 Channel device

Country Status (1)

Country Link
JP (1) JPS57132228A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4512945B2 (en) * 2004-10-13 2010-07-28 津田駒工業株式会社 Warp sending device for oblique weaving loom

Also Published As

Publication number Publication date
JPH0370265B2 (en) 1991-11-07

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