JPS5569863A - Control system for main memory unit - Google Patents
Control system for main memory unitInfo
- Publication number
- JPS5569863A JPS5569863A JP14376978A JP14376978A JPS5569863A JP S5569863 A JPS5569863 A JP S5569863A JP 14376978 A JP14376978 A JP 14376978A JP 14376978 A JP14376978 A JP 14376978A JP S5569863 A JPS5569863 A JP S5569863A
- Authority
- JP
- Japan
- Prior art keywords
- main memory
- block
- access
- address
- memory part
- 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
Links
Abstract
PURPOSE: To process data efficiently by dividing a main memory part into several blocks, by assigning different access period to respective blocks, and then by shortening the time of access to a block of the main memory part with a closer address.
CONSTITUTION: Main memory unit 1 consists of main memory part 3 stored with data and main memory control part 4 including a group of control circuits reading and writing data from and to main memory part 3. Main memory part 3 is divided into 1st block 5 and 2nd block 6. On arrival of an access request from CPU2, address control circuit 10 supplies the address of the access destination to distributor circuit 7 and also discriminates which of 1st block 5 and 2nd block 6 contains the access request destination according to the address, thereby generating a block discrimination signal. Then, this signal is sent to read information effective signal control circuit 9 and access control circuit 8. Consequently, access control circuit 8 generates a timing signal needed to read the result of access to the discriminated block.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14376978A JPS5569863A (en) | 1978-11-21 | 1978-11-21 | Control system for main memory unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14376978A JPS5569863A (en) | 1978-11-21 | 1978-11-21 | Control system for main memory unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5569863A true JPS5569863A (en) | 1980-05-26 |
Family
ID=15346588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14376978A Pending JPS5569863A (en) | 1978-11-21 | 1978-11-21 | Control system for main memory unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5569863A (en) |
-
1978
- 1978-11-21 JP JP14376978A patent/JPS5569863A/en active Pending
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