JPS5555490A - Memory control system - Google Patents
Memory control systemInfo
- Publication number
- JPS5555490A JPS5555490A JP12928078A JP12928078A JPS5555490A JP S5555490 A JPS5555490 A JP S5555490A JP 12928078 A JP12928078 A JP 12928078A JP 12928078 A JP12928078 A JP 12928078A JP S5555490 A JPS5555490 A JP S5555490A
- Authority
- JP
- Japan
- Prior art keywords
- address
- processor
- bank
- data
- upper bits
- 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
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
- G06F12/0615—Address space extension
- G06F12/0623—Address space extension for memory modules
Abstract
PURPOSE:To make it possible to extend an access area by designating simultaneously a data bank and program bank by specific bits of an address. CONSTITUTION:Corresponding one of data banks 4, 5... is selected through register 2 by an address, where upper bits are ''0'', from micro processor 1, and prescribed data is taken into processor 1. Meanwhile, program bank 3 is selected by upper bits of the address, and an instruction word corresponding to the address is taken into the processor to generate an address, where upper bits are ''1'', from the program counter of processor 1, and banks 4... are selected through register 2, but bank 3 is not selected. As a result, the access area can be extended over the address length to perform a mass data processing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12928078A JPS5555490A (en) | 1978-10-20 | 1978-10-20 | Memory control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12928078A JPS5555490A (en) | 1978-10-20 | 1978-10-20 | Memory control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5555490A true JPS5555490A (en) | 1980-04-23 |
Family
ID=15005670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12928078A Pending JPS5555490A (en) | 1978-10-20 | 1978-10-20 | Memory control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5555490A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843122U (en) * | 1981-09-17 | 1983-03-23 | 日立建機株式会社 | Work equipment control circuit |
JPS58203560A (en) * | 1982-05-24 | 1983-11-28 | Toshiba Corp | Processor of program |
JPS59178561A (en) * | 1983-03-30 | 1984-10-09 | Fujitsu Ltd | Bank controlling system |
JPS6051957A (en) * | 1983-08-31 | 1985-03-23 | Toshiba Corp | Microprocessor system |
JPS61156344A (en) * | 1984-12-27 | 1986-07-16 | Sony Corp | Memory device |
JPH06284941A (en) * | 1993-02-03 | 1994-10-11 | Keiper Recaro Gmbh & Co | Seat back for seat in vehicle particularly passenger car |
-
1978
- 1978-10-20 JP JP12928078A patent/JPS5555490A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843122U (en) * | 1981-09-17 | 1983-03-23 | 日立建機株式会社 | Work equipment control circuit |
JPS58203560A (en) * | 1982-05-24 | 1983-11-28 | Toshiba Corp | Processor of program |
JPS59178561A (en) * | 1983-03-30 | 1984-10-09 | Fujitsu Ltd | Bank controlling system |
JPS6051957A (en) * | 1983-08-31 | 1985-03-23 | Toshiba Corp | Microprocessor system |
JPH027097B2 (en) * | 1983-08-31 | 1990-02-15 | Tokyo Shibaura Electric Co | |
JPS61156344A (en) * | 1984-12-27 | 1986-07-16 | Sony Corp | Memory device |
JPH06284941A (en) * | 1993-02-03 | 1994-10-11 | Keiper Recaro Gmbh & Co | Seat back for seat in vehicle particularly passenger car |
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