JPS5474632A - Data processor - Google Patents

Data processor

Info

Publication number
JPS5474632A
JPS5474632A JP14239877A JP14239877A JPS5474632A JP S5474632 A JPS5474632 A JP S5474632A JP 14239877 A JP14239877 A JP 14239877A JP 14239877 A JP14239877 A JP 14239877A JP S5474632 A JPS5474632 A JP S5474632A
Authority
JP
Japan
Prior art keywords
memory
address
unit
conversion
logical
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
JP14239877A
Other languages
Japanese (ja)
Inventor
Hideharu Kobayashi
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 JP14239877A priority Critical patent/JPS5474632A/en
Publication of JPS5474632A publication Critical patent/JPS5474632A/en
Pending legal-status Critical Current

Links

Landscapes

  • Memory System (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Storage Device Security (AREA)

Abstract

PURPOSE: To reduce the overhead of program, by selecting the conversion memory section if different physical memory unit address is accessed, through the constitution of poly-phase for the conversion memory section converting from the logical memory unit address to the physical memory address.
CONSTITUTION: The memory section converting the address 10 of the logical memory unit 11 to that of the physical memory unit 13 is taken as 1400 to 1417. The addresses 1400 to 1415 are used for the central control unit and 1416 and 1417 are for channel unit. One surface of 1400 to 1415 is selected with the content of the memory control register 15. The central control unit can rewrite the content of the memory control register 15 at the supervisory mode and can alter the conversion memory section selected. The channel unit is provided with the logical memory address registers 16 and 17 and each address is converted into physical memory address with the addresses 1416 and 1417. Thus, high speed selection is possible and the overhead of program can be reduced.
COPYRIGHT: (C)1979,JPO&Japio
JP14239877A 1977-11-28 1977-11-28 Data processor Pending JPS5474632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14239877A JPS5474632A (en) 1977-11-28 1977-11-28 Data processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14239877A JPS5474632A (en) 1977-11-28 1977-11-28 Data processor

Publications (1)

Publication Number Publication Date
JPS5474632A true JPS5474632A (en) 1979-06-14

Family

ID=15314418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14239877A Pending JPS5474632A (en) 1977-11-28 1977-11-28 Data processor

Country Status (1)

Country Link
JP (1) JPS5474632A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54142023A (en) * 1978-04-27 1979-11-05 Panafacom Ltd Stored information protecting system
JPS5690355A (en) * 1979-12-24 1981-07-22 Nec Corp Data processing unit
JPS5744281A (en) * 1980-08-30 1982-03-12 Fujitsu Ltd Information processor
JPS58201159A (en) * 1982-05-19 1983-11-22 Matsushita Electric Ind Co Ltd Address converter
JPS6034648U (en) * 1983-08-12 1985-03-09 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Memory paging system in microcomputer
JPS63136228A (en) * 1986-11-28 1988-06-08 Toshiba Corp Document processor
JPS63240653A (en) * 1987-03-09 1988-10-06 アメリカン　テレフォン　アンド　テレグラフ　カムパニー Translation between memory management unit and virtual-real address
JPH01502221A (en) * 1987-03-03 1989-08-03 タンドン　コーポレーション Computer system with computer address translation device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5069941A (en) * 1973-07-02 1975-06-11
JPS50159625A (en) * 1974-06-13 1975-12-24

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5069941A (en) * 1973-07-02 1975-06-11
JPS50159625A (en) * 1974-06-13 1975-12-24

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54142023A (en) * 1978-04-27 1979-11-05 Panafacom Ltd Stored information protecting system
JPS5751199B2 (en) * 1978-04-27 1982-10-30
JPS5690355A (en) * 1979-12-24 1981-07-22 Nec Corp Data processing unit
JPS5744281A (en) * 1980-08-30 1982-03-12 Fujitsu Ltd Information processor
JPS58201159A (en) * 1982-05-19 1983-11-22 Matsushita Electric Ind Co Ltd Address converter
JPS6330654B2 (en) * 1982-05-19 1988-06-20 Matsushita Electric Ind Co Ltd
JPS6034648U (en) * 1983-08-12 1985-03-09 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Memory paging system in microcomputer
JPH049639Y2 (en) * 1983-08-12 1992-03-10
JPS63136228A (en) * 1986-11-28 1988-06-08 Toshiba Corp Document processor
JPH01502221A (en) * 1987-03-03 1989-08-03 タンドン　コーポレーション Computer system with computer address translation device
JPS63240653A (en) * 1987-03-09 1988-10-06 アメリカン　テレフォン　アンド　テレグラフ　カムパニー Translation between memory management unit and virtual-real address

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