JPS5256830A - Dma system of microcomputer - Google Patents

Dma system of microcomputer

Info

Publication number
JPS5256830A
JPS5256830A JP50132452A JP13245275A JPS5256830A JP S5256830 A JPS5256830 A JP S5256830A JP 50132452 A JP50132452 A JP 50132452A JP 13245275 A JP13245275 A JP 13245275A JP S5256830 A JPS5256830 A JP S5256830A
Authority
JP
Japan
Prior art keywords
microcomputer
memory
dma system
data bus
data
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
JP50132452A
Other languages
Japanese (ja)
Other versions
JPS5650286B2 (en
Inventor
Koji Tanagawa
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP50132452A priority Critical patent/JPS5256830A/en
Publication of JPS5256830A publication Critical patent/JPS5256830A/en
Publication of JPS5650286B2 publication Critical patent/JPS5650286B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Bus Control (AREA)
  • Microcomputers (AREA)

Abstract

PURPOSE: When the data from memory is read out to data bus, the switch in data bus is closed. As a result, the date transfer is facilitated between memory and surrounding units without any central processor required. At the same time, the unit can be made small in size.
COPYRIGHT: (C)1977,JPO&Japio
JP50132452A 1975-11-06 1975-11-06 Dma system of microcomputer Granted JPS5256830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50132452A JPS5256830A (en) 1975-11-06 1975-11-06 Dma system of microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50132452A JPS5256830A (en) 1975-11-06 1975-11-06 Dma system of microcomputer

Publications (2)

Publication Number Publication Date
JPS5256830A true JPS5256830A (en) 1977-05-10
JPS5650286B2 JPS5650286B2 (en) 1981-11-27

Family

ID=15081673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50132452A Granted JPS5256830A (en) 1975-11-06 1975-11-06 Dma system of microcomputer

Country Status (1)

Country Link
JP (1) JPS5256830A (en)

Also Published As

Publication number Publication date
JPS5650286B2 (en) 1981-11-27

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