JPS57100699A - Detector for irregular main storage address - Google Patents
Detector for irregular main storage addressInfo
- Publication number
- JPS57100699A JPS57100699A JP55176691A JP17669180A JPS57100699A JP S57100699 A JPS57100699 A JP S57100699A JP 55176691 A JP55176691 A JP 55176691A JP 17669180 A JP17669180 A JP 17669180A JP S57100699 A JPS57100699 A JP S57100699A
- Authority
- JP
- Japan
- Prior art keywords
- main
- main storage
- irregular
- address
- storage
- 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
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To eliminate the complexity of switch setting and to detect an irregular main storage address at a high speed, by providing a register for irregular-main-storage-address detection in a main storage controller.
CONSTITUTION: A CPU, when a power source is put to work, reads the contents of each main storage device MEM1Wi and checks the presence of main- storage-device presence signal ADHL at this time. Then, an irregular main storage address setting register DFF is reset when the main storage device is present and set when not. After the package state of the main storage device is set in the DFF, a main storage controller MCU generates an irregular-main- storage-address detection signal C on the basis of main storage device selection signals A and B and information in the DFF. Consequently, the irregular main storage address is detected with minimum line length, detection time is minimized and the setting ofan irregular-main-storage-address setting switch becomes unnecessary.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55176691A JPS57100699A (en) | 1980-12-15 | 1980-12-15 | Detector for irregular main storage address |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55176691A JPS57100699A (en) | 1980-12-15 | 1980-12-15 | Detector for irregular main storage address |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57100699A true JPS57100699A (en) | 1982-06-22 |
Family
ID=16018041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55176691A Pending JPS57100699A (en) | 1980-12-15 | 1980-12-15 | Detector for irregular main storage address |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57100699A (en) |
-
1980
- 1980-12-15 JP JP55176691A patent/JPS57100699A/en active Pending
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