Microcomputer with programmable ROM
US5628022A · kind A · utility
107Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1994 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | Jun 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0638
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a microcomputer with a programmable ROM, there is provided an external pin at which a mode select signal is entered so as to select one of three modes, including a MCU mode in which an application system is controlled by an application program which has been stored in the programmable ROM, a PROM mode in which the application program is written into the programmable ROM, and an inline mode in which predetermined data is written to a part of the programmable ROM with the microcomputer mounted on a user system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.