JPS52146134A - Rom write-in unit - Google Patents
Rom write-in unitInfo
- Publication number
- JPS52146134A JPS52146134A JP6229876A JP6229876A JPS52146134A JP S52146134 A JPS52146134 A JP S52146134A JP 6229876 A JP6229876 A JP 6229876A JP 6229876 A JP6229876 A JP 6229876A JP S52146134 A JPS52146134 A JP S52146134A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- rom write
- checking
- reading
- write
- 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
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/24—Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells
Landscapes
- Read Only Memory (AREA)
- For Increasing The Reliability Of Semiconductor Memories (AREA)
Abstract
PURPOSE:To detect the readout error which is not detected by the parity check, by providing the buffer memory BM for checking, reading in the tape content into the checking BM once, and reading in it in the writing in BM twice and comparing the both.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6229876A JPS52146134A (en) | 1976-05-31 | 1976-05-31 | Rom write-in unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6229876A JPS52146134A (en) | 1976-05-31 | 1976-05-31 | Rom write-in unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52146134A true JPS52146134A (en) | 1977-12-05 |
Family
ID=13196063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6229876A Pending JPS52146134A (en) | 1976-05-31 | 1976-05-31 | Rom write-in unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52146134A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980001854A1 (en) * | 1979-03-01 | 1980-09-04 | Y Kuze | Photoelectric write-only sequence controller |
-
1976
- 1976-05-31 JP JP6229876A patent/JPS52146134A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980001854A1 (en) * | 1979-03-01 | 1980-09-04 | Y Kuze | Photoelectric write-only sequence controller |
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