JPS647140A - Address generating circuit - Google Patents
Address generating circuitInfo
- Publication number
- JPS647140A JPS647140A JP16126987A JP16126987A JPS647140A JP S647140 A JPS647140 A JP S647140A JP 16126987 A JP16126987 A JP 16126987A JP 16126987 A JP16126987 A JP 16126987A JP S647140 A JPS647140 A JP S647140A
- Authority
- JP
- Japan
- Prior art keywords
- address generating
- memories
- generating part
- circuit
- frame memory
- 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
Abstract
PURPOSE:To flexibly cope with the change of a frame memory or the like by preliminarily writing the addresses, where decoded picture data should be written, on a RAM or a ROM hierarchically. CONSTITUTION:A decoder consists of a decoding circuit 10, an address generating part 20, a latch circuit 12, a writing circuit 13, a frame memory 12, and a timing generating circuit 14. The address generating part 20 is provided with an intra-block address generating part 21, which consists of memories 23 and 24, a counter circuits 25 and 26, and comparators 27 and 28, and a block address generating part 22. Address data is hierarchically stored on memories 23 and 24, and memories 23 and 24 are read out to quickly obtain address data. Contents of memories 23 and 24 are exchanged to cope with the change of constitution of the frame memory 2 or the like.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16126987A JPS647140A (en) | 1987-06-30 | 1987-06-30 | Address generating circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16126987A JPS647140A (en) | 1987-06-30 | 1987-06-30 | Address generating circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS647140A true JPS647140A (en) | 1989-01-11 |
Family
ID=15731895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16126987A Pending JPS647140A (en) | 1987-06-30 | 1987-06-30 | Address generating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS647140A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0391045A (en) * | 1989-09-04 | 1991-04-16 | Sharp Corp | Address generating circuit for picture memory |
JPH04237382A (en) * | 1991-01-22 | 1992-08-25 | Fujitsu Ltd | Device and method for generating image address |
US11918432B2 (en) | 2006-04-20 | 2024-03-05 | Sonendo, Inc. | Apparatus and methods for treating root canals of teeth |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59178544A (en) * | 1983-03-30 | 1984-10-09 | Fujitsu Ltd | Memory access circuit |
JPS6198385A (en) * | 1984-10-19 | 1986-05-16 | 三洋電機株式会社 | Display controller |
-
1987
- 1987-06-30 JP JP16126987A patent/JPS647140A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59178544A (en) * | 1983-03-30 | 1984-10-09 | Fujitsu Ltd | Memory access circuit |
JPS6198385A (en) * | 1984-10-19 | 1986-05-16 | 三洋電機株式会社 | Display controller |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0391045A (en) * | 1989-09-04 | 1991-04-16 | Sharp Corp | Address generating circuit for picture memory |
JPH04237382A (en) * | 1991-01-22 | 1992-08-25 | Fujitsu Ltd | Device and method for generating image address |
US11918432B2 (en) | 2006-04-20 | 2024-03-05 | Sonendo, Inc. | Apparatus and methods for treating root canals of teeth |
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