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GB2246222B - Central processing unit - Google Patents

Central processing unit

Info

Publication number
GB2246222B
GB2246222B GB9112910A GB9112910A GB2246222B GB 2246222 B GB2246222 B GB 2246222B GB 9112910 A GB9112910 A GB 9112910A GB 9112910 A GB9112910 A GB 9112910A GB 2246222 B GB2246222 B GB 2246222B
Authority
GB
United Kingdom
Prior art keywords
processing unit
central processing
central
unit
processing
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.)
Expired - Fee Related
Application number
GB9112910A
Other versions
GB2246222A (en
GB9112910D0 (en
Inventor
Masayuki Hirokawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB9112910D0 publication Critical patent/GB9112910D0/en
Publication of GB2246222A publication Critical patent/GB2246222A/en
Application granted granted Critical
Publication of GB2246222B publication Critical patent/GB2246222B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/10—Programming or data input circuits
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/76—Architectures of general purpose stored program computers
    • G06F15/78—Architectures of general purpose stored program computers comprising a single central processing unit
    • G06F15/7828—Architectures of general purpose stored program computers comprising a single central processing unit without memory
    • G06F15/7832—Architectures of general purpose stored program computers comprising a single central processing unit without memory on one IC chip (single chip microprocessors)
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/22—Microcontrol or microprogram arrangements
    • G06F9/24—Loading of the microprogram

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Microcomputers (AREA)
  • Read Only Memory (AREA)
GB9112910A 1990-06-18 1991-06-14 Central processing unit Expired - Fee Related GB2246222B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2159358A JPH0448331A (en) 1990-06-18 1990-06-18 Central processing unit

Publications (3)

Publication Number Publication Date
GB9112910D0 GB9112910D0 (en) 1991-07-31
GB2246222A GB2246222A (en) 1992-01-22
GB2246222B true GB2246222B (en) 1994-08-17

Family

ID=15692101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9112910A Expired - Fee Related GB2246222B (en) 1990-06-18 1991-06-14 Central processing unit

Country Status (3)

Country Link
JP (1) JPH0448331A (en)
DE (1) DE4120058A1 (en)
GB (1) GB2246222B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1046168C (en) * 1993-07-29 1999-11-03 爱特梅尔股份有限公司 Remotely re-programmable program memory for a microcontroller
JPH08137763A (en) * 1994-11-04 1996-05-31 Fujitsu Ltd Flash memory controller

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2075729A (en) * 1980-05-12 1981-11-18 Suwa Seikosha Kk Microprogramm control circuit
GB2138978A (en) * 1983-03-19 1984-10-31 Fabri Tek International Bv Digital computer memory
WO1987005420A1 (en) * 1986-03-10 1987-09-11 Data Card Corporation Smart card apparatus and method of programming same
EP0316549A2 (en) * 1987-11-03 1989-05-24 Motorola, Inc. A single-chip microprocessor having secure on-chip PROM
GB2227584A (en) * 1989-01-28 1990-08-01 Int Computers Ltd Computer control data modification system
GB2248127A (en) * 1990-09-04 1992-03-25 Mitsubishi Electric Corp Data erasing and re-writing circuit for use in programming a microcomputer integrated circuit device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825356A (en) * 1987-03-27 1989-04-25 Tandem Computers Incorporated Microcoded microprocessor with shared ram

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2075729A (en) * 1980-05-12 1981-11-18 Suwa Seikosha Kk Microprogramm control circuit
GB2138978A (en) * 1983-03-19 1984-10-31 Fabri Tek International Bv Digital computer memory
WO1987005420A1 (en) * 1986-03-10 1987-09-11 Data Card Corporation Smart card apparatus and method of programming same
EP0316549A2 (en) * 1987-11-03 1989-05-24 Motorola, Inc. A single-chip microprocessor having secure on-chip PROM
GB2227584A (en) * 1989-01-28 1990-08-01 Int Computers Ltd Computer control data modification system
GB2248127A (en) * 1990-09-04 1992-03-25 Mitsubishi Electric Corp Data erasing and re-writing circuit for use in programming a microcomputer integrated circuit device

Also Published As

Publication number Publication date
GB2246222A (en) 1992-01-22
JPH0448331A (en) 1992-02-18
GB9112910D0 (en) 1991-07-31
DE4120058A1 (en) 1991-12-19

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950523

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070614