JPS5474328A - Data processor - Google Patents
Data processorInfo
- Publication number
- JPS5474328A JPS5474328A JP14173377A JP14173377A JPS5474328A JP S5474328 A JPS5474328 A JP S5474328A JP 14173377 A JP14173377 A JP 14173377A JP 14173377 A JP14173377 A JP 14173377A JP S5474328 A JPS5474328 A JP S5474328A
- Authority
- JP
- Japan
- Prior art keywords
- line
- bus
- data processor
- format
- memory rom
- 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 make the format of output logic free by assignging the output logic format of a key input part connected to a bus, on a data processor of a microcomputer equipped with a keyboard. CONSTITUTION:The device composed of jumper line JP and tri-state buffer TBF is connected to one-bit line l from the output of memory ROM of the microcomputer consisting of data processing part CPU, and input port INP, keybord KB, decoder DEC, memory ROM, and buffer BUF connected via address bus AB and data bus DB; and then, the bit of line l is assigned to this jumper line JP.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14173377A JPS5474328A (en) | 1977-11-26 | 1977-11-26 | Data processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14173377A JPS5474328A (en) | 1977-11-26 | 1977-11-26 | Data processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5474328A true JPS5474328A (en) | 1979-06-14 |
Family
ID=15298935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14173377A Pending JPS5474328A (en) | 1977-11-26 | 1977-11-26 | Data processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5474328A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5659334A (en) * | 1979-10-19 | 1981-05-22 | Hitachi Ltd | Device discrimination system |
JPS6146637U (en) * | 1984-08-31 | 1986-03-28 | パイオニア株式会社 | Mode programming circuit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49131046A (en) * | 1973-03-30 | 1974-12-16 | ||
JPS5210039A (en) * | 1975-07-14 | 1977-01-26 | Seikosha Co Ltd | Supplemental controller of data processer |
-
1977
- 1977-11-26 JP JP14173377A patent/JPS5474328A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49131046A (en) * | 1973-03-30 | 1974-12-16 | ||
JPS5210039A (en) * | 1975-07-14 | 1977-01-26 | Seikosha Co Ltd | Supplemental controller of data processer |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5659334A (en) * | 1979-10-19 | 1981-05-22 | Hitachi Ltd | Device discrimination system |
JPS6146637U (en) * | 1984-08-31 | 1986-03-28 | パイオニア株式会社 | Mode programming circuit |
JPH049640Y2 (en) * | 1984-08-31 | 1992-03-10 |
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