JPS6476260A - Memory access system - Google Patents
Memory access systemInfo
- Publication number
- JPS6476260A JPS6476260A JP23259087A JP23259087A JPS6476260A JP S6476260 A JPS6476260 A JP S6476260A JP 23259087 A JP23259087 A JP 23259087A JP 23259087 A JP23259087 A JP 23259087A JP S6476260 A JPS6476260 A JP S6476260A
- Authority
- JP
- Japan
- Prior art keywords
- memory access
- memory
- master
- basic clock
- access request
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
Abstract
PURPOSE:To rapidly process an access request from all masters by executing a processing by a memory control circuit according to the basic clock of the master requesting the memory access. CONSTITUTION:In a memory access system for making an access to a common memory 4 by the plural masters 1, 2 different in the frequency of the basic clock, the memory control circuit 3 for operating by the basic clock Cm of the main master to the memory access request from the main master 1 and operating by the basic clock Cs of the sub-master to the memory access request from the sub-master 2 is provided. Thereby, it is not required to synchronize the memory access request but the access requests from all the masters can be rapidly processed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23259087A JPS6476260A (en) | 1987-09-18 | 1987-09-18 | Memory access system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23259087A JPS6476260A (en) | 1987-09-18 | 1987-09-18 | Memory access system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6476260A true JPS6476260A (en) | 1989-03-22 |
Family
ID=16941744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23259087A Pending JPS6476260A (en) | 1987-09-18 | 1987-09-18 | Memory access system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6476260A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09185582A (en) * | 1995-12-29 | 1997-07-15 | Nec Corp | Clock control system and its method for local bus |
US8747724B2 (en) | 2009-07-03 | 2014-06-10 | Krones Ag | Blow molding machine and method for producing hollow bodies |
-
1987
- 1987-09-18 JP JP23259087A patent/JPS6476260A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09185582A (en) * | 1995-12-29 | 1997-07-15 | Nec Corp | Clock control system and its method for local bus |
US8747724B2 (en) | 2009-07-03 | 2014-06-10 | Krones Ag | Blow molding machine and method for producing hollow bodies |
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