JPS60116543U - read-only storage - Google Patents
read-only storageInfo
- Publication number
- JPS60116543U JPS60116543U JP472184U JP472184U JPS60116543U JP S60116543 U JPS60116543 U JP S60116543U JP 472184 U JP472184 U JP 472184U JP 472184 U JP472184 U JP 472184U JP S60116543 U JPS60116543 U JP S60116543U
- Authority
- JP
- Japan
- Prior art keywords
- read
- memory
- storage
- redundant
- check
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例の読出専用記憶装置を示すブ
ロック図である。
なお図において、１・・・・・・読み出し専用メモリ（
ＲＯＭ）、２・・・・・・冗長ＲＯＭ、 ３・・・・・
・チェック回路、４・・・・・・制御回路、５・・・・
・・セレクタ、６乃至９・・・・・・メモリアドレス／
ストローブ信号、１ｏ・・曲ＲＯＭチェック開始信号、
１１・・・・・・クロック信号、１２．１３・・・・・
−ＲＯＭデータ、１４・曲・データ誤り検出信号。FIG. 1 is a block diagram showing a read-only storage device according to an embodiment of the present invention. In the figure, 1...read-only memory (
ROM), 2...Redundant ROM, 3...
・Check circuit, 4... Control circuit, 5...
...Selector, 6 to 9...Memory address/
Strobe signal, 1o... Song ROM check start signal,
11... Clock signal, 12.13...
-ROM data, 14/song/data error detection signal.
Claims (1)
チェックビットを記憶した冗長読出専用・メモリと、前
記読出専用メモリおよび前記冗長読出専用メモリのデー
タのサイクリックチェックを行なうチェック回路とを具
備してなることを特徴とする読出専用記憶装置。A read-only memory, a redundant read-only memory that stores a cyclic check bit of the read-only memory, and a check circuit that performs a cyclic check of data in the read-only memory and the redundant read-only memory. A read-only storage device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP472184U JPS60116543U (en) | 1984-01-18 | 1984-01-18 | read-only storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP472184U JPS60116543U (en) | 1984-01-18 | 1984-01-18 | read-only storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60116543U true JPS60116543U (en) | 1985-08-07 |
Family
ID=30480561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP472184U Pending JPS60116543U (en) | 1984-01-18 | 1984-01-18 | read-only storage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60116543U (en) |
-
1984
- 1984-01-18 JP JP472184U patent/JPS60116543U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS60116543U (en) | read-only storage | |
| JPS5836445U (en) | Data selection circuit | |
| JPS5851361U (en) | Microcomputer control circuit | |
| JPH0458764U (en) | ||
| JPS5839647U (en) | Interrupt generation circuit | |
| JPS59112400U (en) | memory device | |
| JPS60120563U (en) | magnetic disk storage device | |
| JPS5986742U (en) | Programmable timing generation circuit | |
| JPS60144148U (en) | Storage device | |
| JPS59130146U (en) | memory device | |
| JPS5992929U (en) | Memory monitoring device for DMA device | |
| JPS6133147U (en) | microprogram controller | |
| JPS59189800U (en) | microcomputer | |
| JPS60164258U (en) | data transfer control device | |
| JPS6044139U (en) | microcomputer | |
| JPS59122636U (en) | Memory read switching device | |
| JPS58118599U (en) | Storage device | |
| JPS6011547U (en) | modem | |
| JPS59118200U (en) | bubble memory device | |
| JPS613588U (en) | counter circuit | |
| JPS5992940U (en) | Parity check circuit | |
| JPS6076446U (en) | Storage device | |
| JPS617000U (en) | Built-in memory LSI | |
| JPS5920355U (en) | Address bus monitoring circuit | |
| JPH0185999U (en) |