JPS56168255A - Interface adapter - Google Patents

Interface adapter

Info

Publication number
JPS56168255A
JPS56168255A JP7232680A JP7232680A JPS56168255A JP S56168255 A JPS56168255 A JP S56168255A JP 7232680 A JP7232680 A JP 7232680A JP 7232680 A JP7232680 A JP 7232680A JP S56168255 A JPS56168255 A JP S56168255A
Authority
JP
Japan
Prior art keywords
stored
register
information
registers
adapeter
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
JP7232680A
Other languages
Japanese (ja)
Inventor
Yoshio Hamaguchi
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7232680A priority Critical patent/JPS56168255A/en
Publication of JPS56168255A publication Critical patent/JPS56168255A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Transfer Systems (AREA)

Abstract

PURPOSE:To make response time faster by providing memories which store condition information and execution okay or not information in an interface adapeter for the purpose of connecting a minicomputer or the like to the channel interface of a host computer. CONSTITUTION:The information indicating whether a magnetic tape is in a write protection state or not is stored in the condition memory 16 of an interface adapeter 2, and the information relating to the action to be made in response to the conditions stored in the condition memory 16 is stored in a requirement memory 17. The information in a bus 11 from a minicomputer is stored in the respective registers in the adapeter, and devices addresses are stored in a register 13, and command codes in a register 15, respectively. The registers 13 and 15 operate as address registers respectively, to read out the addresses from memories 16 and 17 respectively and store them in registers 18 and 19. In the next logical circuit 20, all the bits are collated, and by the results thereof, the contents of an acceptance register 25 or a reject register 26 are sent to the host computer.
JP7232680A 1980-05-30 1980-05-30 Interface adapter Pending JPS56168255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7232680A JPS56168255A (en) 1980-05-30 1980-05-30 Interface adapter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7232680A JPS56168255A (en) 1980-05-30 1980-05-30 Interface adapter

Publications (1)

Publication Number Publication Date
JPS56168255A true JPS56168255A (en) 1981-12-24

Family

ID=13486041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7232680A Pending JPS56168255A (en) 1980-05-30 1980-05-30 Interface adapter

Country Status (1)

Country Link
JP (1) JPS56168255A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3719578A1 (en) 2019-04-03 2020-10-07 Ricoh Company, Ltd. Electrophotographic developer, replenishment developer, image forming apparatus, process cartridge, and image forming method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3719578A1 (en) 2019-04-03 2020-10-07 Ricoh Company, Ltd. Electrophotographic developer, replenishment developer, image forming apparatus, process cartridge, and image forming method

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