JPS645000A - Check sum code incorporating type rom - Google Patents

Check sum code incorporating type rom

Info

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
Application number
JP16033187A
Other languages
Japanese (ja)
Inventor
Minoru Fujimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP16033187A priority Critical patent/JPS645000A/en
Publication of JPS645000A publication Critical patent/JPS645000A/en
Pending legal-status Critical Current

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.
JP16033187A 1987-06-26 1987-06-26 Check sum code incorporating type rom Pending JPS645000A (en)

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)

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