JPS54143028A - Data transfer unit - Google Patents

Data transfer unit

Info

Publication number
JPS54143028A
JPS54143028A JP5113678A JP5113678A JPS54143028A JP S54143028 A JPS54143028 A JP S54143028A JP 5113678 A JP5113678 A JP 5113678A JP 5113678 A JP5113678 A JP 5113678A JP S54143028 A JPS54143028 A JP S54143028A
Authority
JP
Japan
Prior art keywords
size
register
page
data transfer
storage parts
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
JP5113678A
Other languages
Japanese (ja)
Other versions
JPS6112582B2 (en
Inventor
Yoshinori Chiwaki
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 JP5113678A priority Critical patent/JPS54143028A/en
Publication of JPS54143028A publication Critical patent/JPS54143028A/en
Publication of JPS6112582B2 publication Critical patent/JPS6112582B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE: To make it possible to access storage parts different in page size by controlling an address conversion means by the signal which discriminates the size of one page of each storage part, in the data transfer unit which transfers data to plural storage parts.
CONSTITUTION: In the data transfer unit which transfers data to plural storage parts 8 and 9, page size register 2 which outputs page size signal S1 to discriminate the size of pages, data address selector 6 which selects the bit constitution of page table read PTW register 3 and virtual address register 2 on a basis of the output of size signal S1, and PTW address selector 5 which selects the bit constitution of page table pointer PTP register 1 and register 2 on a basis of size signal S1 are provided. Then, address selector 7 is controlled by outputs of these selectors 5 and 6 to convert virtual addresses to real addresses, thereby performing the data transfer to storage parts 8 and 9 different in page size.
COPYRIGHT: (C)1979,JPO&Japio
JP5113678A 1978-04-28 1978-04-28 Data transfer unit Granted JPS54143028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5113678A JPS54143028A (en) 1978-04-28 1978-04-28 Data transfer unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5113678A JPS54143028A (en) 1978-04-28 1978-04-28 Data transfer unit

Publications (2)

Publication Number Publication Date
JPS54143028A true JPS54143028A (en) 1979-11-07
JPS6112582B2 JPS6112582B2 (en) 1986-04-09

Family

ID=12878395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5113678A Granted JPS54143028A (en) 1978-04-28 1978-04-28 Data transfer unit

Country Status (1)

Country Link
JP (1) JPS54143028A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5680865A (en) * 1979-11-30 1981-07-02 Matsushita Electric Ind Co Ltd Driving method of memory
JPS60204048A (en) * 1984-03-28 1985-10-15 Hitachi Ltd Virtual storing system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5680865A (en) * 1979-11-30 1981-07-02 Matsushita Electric Ind Co Ltd Driving method of memory
JPS6155694B2 (en) * 1979-11-30 1986-11-28 Matsushita Electric Ind Co Ltd
JPS60204048A (en) * 1984-03-28 1985-10-15 Hitachi Ltd Virtual storing system
JPH0353659B2 (en) * 1984-03-28 1991-08-15 Hitachi Ltd

Also Published As

Publication number Publication date
JPS6112582B2 (en) 1986-04-09

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