JPS645000A - Check sum code incorporating type rom - Google Patents
Check sum code incorporating type romInfo
- Publication number
- JPS645000A JPS645000A JP16033187A JP16033187A JPS645000A JP S645000 A JPS645000 A JP S645000A JP 16033187 A JP16033187 A JP 16033187A JP 16033187 A JP16033187 A JP 16033187A JP S645000 A JPS645000 A JP S645000A
- Authority
- JP
- Japan
- Prior art keywords
- check sum
- sum code
- data
- type rom
- code
- 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
- For Increasing The Reliability Of Semiconductor Memories (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Read Only Memory (AREA)
Abstract
PURPOSE:To realize data confirmation without requiring a labor and time, by storing a check sum code, and transferring it with a data input-output circuit. CONSTITUTION:A code storing circuit 6 which stores the check sum code and transfers it with the data input-output circuit 4 is provided. It is possible to easily confirm whether or not data immediately after data write is stored and held correctly by a stored check sum code. In such a way, it is not required to record and store the check sum code in the outside, and to obtain a ROM without requiring the labor and time capable of performing the data confirmation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16033187A JPS645000A (en) | 1987-06-26 | 1987-06-26 | Check sum code incorporating type rom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16033187A JPS645000A (en) | 1987-06-26 | 1987-06-26 | Check sum code incorporating type rom |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS645000A true JPS645000A (en) | 1989-01-10 |
Family
ID=15712654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16033187A Pending JPS645000A (en) | 1987-06-26 | 1987-06-26 | Check sum code incorporating type rom |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS645000A (en) |
-
1987
- 1987-06-26 JP JP16033187A patent/JPS645000A/en active Pending
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