JPS5647999A - Initializing method of memory - Google Patents
Initializing method of memoryInfo
- Publication number
- JPS5647999A JPS5647999A JP12186779A JP12186779A JPS5647999A JP S5647999 A JPS5647999 A JP S5647999A JP 12186779 A JP12186779 A JP 12186779A JP 12186779 A JP12186779 A JP 12186779A JP S5647999 A JPS5647999 A JP S5647999A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- address
- initialization
- flow
- ram
- 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)
Abstract
PURPOSE: To initialize a memory easily without judging ROM and RAM, by performing initialization as to only an address where a parity error has occured.
CONSTITUTION: Setting an address to an initial value after the electric power source is turned on reads the corresponding address contents of the memory according to read operation flow 23. Then, a parity check is made according to error decision flow 24 and only when an error occurs, write operation is performed according to write operation flow 25 to attain initialization. Next, similar flow operation is carried out with the address increased for initialization. This system eliminates the need to decide ROM and RAM and the memory can easily be initialized.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12186779A JPS5647999A (en) | 1979-09-21 | 1979-09-21 | Initializing method of memory |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12186779A JPS5647999A (en) | 1979-09-21 | 1979-09-21 | Initializing method of memory |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5647999A true JPS5647999A (en) | 1981-04-30 |
Family
ID=14821884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12186779A Pending JPS5647999A (en) | 1979-09-21 | 1979-09-21 | Initializing method of memory |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5647999A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58128096A (en) * | 1981-12-19 | 1983-07-30 | Fujitsu Ltd | Memory clear system |
JPH0627942A (en) * | 1993-04-15 | 1994-02-04 | Kawai Musical Instr Mfg Co Ltd | Electronic musical instrument and its power-on time processing method |
-
1979
- 1979-09-21 JP JP12186779A patent/JPS5647999A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58128096A (en) * | 1981-12-19 | 1983-07-30 | Fujitsu Ltd | Memory clear system |
JPS6130305B2 (en) * | 1981-12-19 | 1986-07-12 | Fujitsu Ltd | |
JPH0627942A (en) * | 1993-04-15 | 1994-02-04 | Kawai Musical Instr Mfg Co Ltd | Electronic musical instrument and its power-on time processing method |
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