JPS5682958A - Address conversion system - Google Patents
Address conversion systemInfo
- Publication number
- JPS5682958A JPS5682958A JP15948479A JP15948479A JPS5682958A JP S5682958 A JPS5682958 A JP S5682958A JP 15948479 A JP15948479 A JP 15948479A JP 15948479 A JP15948479 A JP 15948479A JP S5682958 A JPS5682958 A JP S5682958A
- Authority
- JP
- Japan
- Prior art keywords
- external
- address conversion
- address
- modification
- memory
- 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)
- Microcomputers (AREA)
- Memory System (AREA)
- Memory System Of A Hierarchy Structure (AREA)
- Advance Control (AREA)
Abstract
PURPOSE: To perform address conversion by either base modification or page modification, by performing external memory extension logic operation while logic functions inside of an arithmetic controller made into one chip are left fixed.
CONSTITUTION: Arithmetic controller 101 is made into one chip of a very large scale integrated semiconductor. This controller 101 is controlled by external control memory part 102, and sends logical addresses and segment information to an external circuit via main bus 103 with internal logic functions fixed. On the other hand, address converting mechanism 105 for extending the address space of the main memory receives said logical addresses, segment information, etc., sent from device 101 and refers to conversion table 105T to obtain physical addresses of the man memory. This mechanism 105 varies in function constitution with two kinds of external setting signals for assigning address conversion systems included in an external signal group. Namely, the address conversion by base modification or page modification can be selected.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15948479A JPS5682958A (en) | 1979-12-08 | 1979-12-08 | Address conversion system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15948479A JPS5682958A (en) | 1979-12-08 | 1979-12-08 | Address conversion system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5682958A true JPS5682958A (en) | 1981-07-07 |
JPS6336542B2 JPS6336542B2 (en) | 1988-07-20 |
Family
ID=15694771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15948479A Granted JPS5682958A (en) | 1979-12-08 | 1979-12-08 | Address conversion system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5682958A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5864525A (en) * | 1992-08-20 | 1999-01-26 | Mitsubishi Denki Kabushiki Kaisha | Optical disk device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5093739A (en) * | 1973-12-20 | 1975-07-26 | ||
JPS513741A (en) * | 1974-06-26 | 1976-01-13 | Ibm | |
JPS516625A (en) * | 1974-07-08 | 1976-01-20 | Hitachi Ltd | DEETATENSOSOCHI |
JPS5414635A (en) * | 1977-07-06 | 1979-02-03 | Hitachi Ltd | Memory extension system for computer |
-
1979
- 1979-12-08 JP JP15948479A patent/JPS5682958A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5093739A (en) * | 1973-12-20 | 1975-07-26 | ||
JPS513741A (en) * | 1974-06-26 | 1976-01-13 | Ibm | |
JPS516625A (en) * | 1974-07-08 | 1976-01-20 | Hitachi Ltd | DEETATENSOSOCHI |
JPS5414635A (en) * | 1977-07-06 | 1979-02-03 | Hitachi Ltd | Memory extension system for computer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5864525A (en) * | 1992-08-20 | 1999-01-26 | Mitsubishi Denki Kabushiki Kaisha | Optical disk device |
Also Published As
Publication number | Publication date |
---|---|
JPS6336542B2 (en) | 1988-07-20 |
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