Method and apparatus for observing internal memory-mapped registers
US5212775A · kind A · utility
5Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1991 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Aug 22, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3656
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for observing the contents on internal memory-mapped registers of controllers and co-processors which have been integrated on-chip with a central processing unit ("CPU"). The CPU asserts a first signal when access to internal memory is requested and deactivates a second signal which would normally allow simultaneous access to both internal and external memory locations. In this way, the contents of internal memory may be observed in real time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.