JPS5685135A - Storage device - Google Patents
Storage deviceInfo
- Publication number
- JPS5685135A JPS5685135A JP16196379A JP16196379A JPS5685135A JP S5685135 A JPS5685135 A JP S5685135A JP 16196379 A JP16196379 A JP 16196379A JP 16196379 A JP16196379 A JP 16196379A JP S5685135 A JPS5685135 A JP S5685135A
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- memory
- address
- internal address
- dma
- 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
Links
Landscapes
- Bus Control (AREA)
Abstract
PURPOSE: To obtain a memory storage device with a low cost and a short DMA transfer time, by installing an internal address generating means, the means that connects the memory part designated by the above-mentioned address generating means and the external information input/outpt terminal to transfer the information, etc.
CONSTITUTION: A means if provided to secure a connection among the memory part, internal address generating means, external information input/output terminal, memory part designated by the internal address and external information input/ output terminal each and then perform the information transfer. For instance, the circuit block as shown in the diagram is formed within the memory chip for transfer of the direct memory access (DMA) which performs the transfer of the serial data between the peripheral devices and the storage device. Then the external address introduced from the CPU or the like via the terminal 15 plus the DMA address introduced via the internal address bus 14 after generated inside the chip are selected by the gate 2 which is controlled by the controlling circuit 1 to be applied to the memory group 4 via the address decoder 3.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16196379A JPS5685135A (en) | 1979-12-13 | 1979-12-13 | Storage device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16196379A JPS5685135A (en) | 1979-12-13 | 1979-12-13 | Storage device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5685135A true JPS5685135A (en) | 1981-07-11 |
JPS6338731B2 JPS6338731B2 (en) | 1988-08-02 |
Family
ID=15745392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16196379A Granted JPS5685135A (en) | 1979-12-13 | 1979-12-13 | Storage device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5685135A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0455222U (en) * | 1990-09-14 | 1992-05-12 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5436138A (en) * | 1977-08-26 | 1979-03-16 | Nec Corp | Direct memory access system |
-
1979
- 1979-12-13 JP JP16196379A patent/JPS5685135A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5436138A (en) * | 1977-08-26 | 1979-03-16 | Nec Corp | Direct memory access system |
Also Published As
Publication number | Publication date |
---|---|
JPS6338731B2 (en) | 1988-08-02 |
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