Method and apparatus for controlling show cycles in a data processing system
US5675749A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1995 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Jun 2, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/349
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates in general to a data processing system (10), and more particularly to a method and apparatus for controlling showcycles in a data processing system (10) to provide user control over the tradeoff between internal bus visibility and operating performance. In one embodiment, the functionality of one or more register control bits (100, 102) can be combined with the functionality of one or more externally provided signals (78) to allow the user to have a wide range of control over the show cycles provided on external bus 12. The user is thus able to continuously select and change which information is provided by way of show cycles on external bus 12. As a result, the difficulty of debugging software program code can potentially be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.