JPS5492147A - Generation system for timing signal - Google Patents
Generation system for timing signalInfo
- Publication number
- JPS5492147A JPS5492147A JP16028377A JP16028377A JPS5492147A JP S5492147 A JPS5492147 A JP S5492147A JP 16028377 A JP16028377 A JP 16028377A JP 16028377 A JP16028377 A JP 16028377A JP S5492147 A JPS5492147 A JP S5492147A
- Authority
- JP
- Japan
- Prior art keywords
- rom
- information
- stored
- bit position
- bit
- 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.)
- Granted
Links
Abstract
PURPOSE: To fulfill economization with the memory capacity of a ROM reduced remarkably by providing the ROM stored with words which have information forming a timing signal and read-out cycle assignment information.
CONSTITUTION: The circuit consists of the ROM, control circuit CTL, AND gates AGA and AGB, OR gate OG, address register AR, and buffer register BR (O to n and A and B denote cells). Then, the ROM stores sequentially "1" or "0" as data of information equivalent to required timing for respective timing signals TMO to TMn in the direction that the address of the ROM advances corresponding to the bit direction of one word. At a bit position different from bit positions equivalents to TMO to TMn, namely, bit position A, information is stored which changes RMO to TMn in several nanoseconds, and at the other bit position B, "1" when a word includes information changing them in several microseconds or "0" when not is stored.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52160283A JPS5939043B2 (en) | 1977-12-29 | 1977-12-29 | Timing signal generation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52160283A JPS5939043B2 (en) | 1977-12-29 | 1977-12-29 | Timing signal generation method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5492147A true JPS5492147A (en) | 1979-07-21 |
JPS5939043B2 JPS5939043B2 (en) | 1984-09-20 |
Family
ID=15711632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52160283A Expired JPS5939043B2 (en) | 1977-12-29 | 1977-12-29 | Timing signal generation method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5939043B2 (en) |
-
1977
- 1977-12-29 JP JP52160283A patent/JPS5939043B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5939043B2 (en) | 1984-09-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS54139344A (en) | Clock-system static memory | |
JPS57166773A (en) | Reproducing method of picture scan | |
GB1394548A (en) | Data recirculator | |
JPS54139343A (en) | Clock-system memory | |
JPS5321542A (en) | Error data memory circuit | |
US4479180A (en) | Digital memory system utilizing fast and slow address dependent access cycles | |
JPS5492147A (en) | Generation system for timing signal | |
JPS5532270A (en) | Read control circuit for memory unit | |
JPS55134442A (en) | Data transfer unit | |
JPS55105760A (en) | Memory control unit | |
JPS56156978A (en) | Memory control system | |
JPS5590000A (en) | Error detection system for memory | |
JPS57153392A (en) | Ruled line processing system | |
SU1396158A1 (en) | Buffer storage | |
JPS6419580A (en) | Dual port memory circuit | |
JPS57127982A (en) | Memory address system | |
JPS5622292A (en) | Memory element | |
JPS53121403A (en) | Control unit for memory circuit | |
JPS57193847A (en) | Memory bank dividing circuit | |
SU1536366A1 (en) | Device for information input/output device | |
SU1310899A1 (en) | Storage with simul taneous reading of several layers | |
JPS574670A (en) | Picture memory control system | |
JPS563486A (en) | Magnetic bubble memory control system | |
JPS5654696A (en) | Memory device | |
JPS5379329A (en) | Test method of memory circuit |