JPS5496935A - Memory module - Google Patents
Memory moduleInfo
- Publication number
- JPS5496935A JPS5496935A JP399178A JP399178A JPS5496935A JP S5496935 A JPS5496935 A JP S5496935A JP 399178 A JP399178 A JP 399178A JP 399178 A JP399178 A JP 399178A JP S5496935 A JPS5496935 A JP S5496935A
- Authority
- JP
- Japan
- Prior art keywords
- access
- block
- package
- given
- mmo
- 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 facilitate an easy and early detection for the factor of the memory malfunction by providing the mis-access detector circuit for the non-package address to the memory module which is capable of the partial package.
CONSTITUTION: Memory module MMO is given full package, and MM1 is given half-package of only block 0 and 1. No common connection is given to jumper line connection areas A, B and C of MMO, and jumper line B and C are connected to MM1. More than two units of block enable signal BINB do not turn to the low level at one time at the non-action time at the high level, and the block corresponding to the BINB signal of low level can be active. As no jumper line is connected to MMO, mis-access detector output 7 shows the normal access at the low level. The normal access is shown at MM1 when the access is given to block 0 and 1, but output 7 features high level at block 2 and 3 to show the abnormal access. Thus, an early detection is possible for the malfunction.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP399178A JPS5496935A (en) | 1978-01-17 | 1978-01-17 | Memory module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP399178A JPS5496935A (en) | 1978-01-17 | 1978-01-17 | Memory module |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5496935A true JPS5496935A (en) | 1979-07-31 |
Family
ID=11572478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP399178A Pending JPS5496935A (en) | 1978-01-17 | 1978-01-17 | Memory module |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5496935A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56109151U (en) * | 1980-01-21 | 1981-08-24 | ||
JPS57157360A (en) * | 1981-03-25 | 1982-09-28 | Toshiba Corp | Mis-operation detecting system for data |
JPS6137198U (en) * | 1984-08-08 | 1986-03-07 | 株式会社明電舎 | Unmounted area recognition device for variable capacity memory |
JPS61501801A (en) * | 1984-04-06 | 1986-08-21 | テレフオンアクチ−ボラゲツト エル エム エリクソン | Device that monitors data processing equipment |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49102248A (en) * | 1973-01-02 | 1974-09-27 | ||
JPS5417636A (en) * | 1977-07-08 | 1979-02-09 | Fujitsu Ltd | Address-over detection system of memory unit |
-
1978
- 1978-01-17 JP JP399178A patent/JPS5496935A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49102248A (en) * | 1973-01-02 | 1974-09-27 | ||
JPS5417636A (en) * | 1977-07-08 | 1979-02-09 | Fujitsu Ltd | Address-over detection system of memory unit |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56109151U (en) * | 1980-01-21 | 1981-08-24 | ||
JPS57157360A (en) * | 1981-03-25 | 1982-09-28 | Toshiba Corp | Mis-operation detecting system for data |
JPS61501801A (en) * | 1984-04-06 | 1986-08-21 | テレフオンアクチ−ボラゲツト エル エム エリクソン | Device that monitors data processing equipment |
JPS6137198U (en) * | 1984-08-08 | 1986-03-07 | 株式会社明電舎 | Unmounted area recognition device for variable capacity memory |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS53112631A (en) | Fault diagnosis device for computer system | |
JPS5496935A (en) | Memory module | |
JPS545330A (en) | Memory protect circuit | |
JPS5326632A (en) | Common memory control unit | |
JPS5420625A (en) | Fault discrimination ststem of memory system | |
JPS5495141A (en) | Fault detector | |
JPS5659336A (en) | Bus system input/output unit | |
JPS551675A (en) | Memory protect control system | |
JPS5396443A (en) | Detecting circuit for instanteneous power failure | |
JPS5313324A (en) | Input/output device | |
JPS52124830A (en) | Buss malfunction detection circuit | |
JPS5353930A (en) | Input and output control system | |
JPS5641598A (en) | Malfunction detecting circuit | |
JPS5736331A (en) | Bus line device | |
JPS5295447A (en) | Signal device for elevator | |
JPS5345129A (en) | Memory unit | |
JPS5358732A (en) | Memory unit | |
JPS543442A (en) | Abnormality detection system for logic element | |
JPS5384437A (en) | Control system for test pattern generation | |
JPS5379329A (en) | Test method of memory circuit | |
JPS5325321A (en) | Reading controller for memory unit | |
JPS52137218A (en) | Memory diagnosis system | |
JPS5326631A (en) | Logic circuit diagnosis system for main memory control uni t | |
JPS5348636A (en) | Circuit device capable of discrimination of faulty element | |
JPS5566041A (en) | Extension system of storage capacity |