System for blocking access to a computer device using a glue logic circuit operable to force a target computer device to perform a target abort
US5935223A · kind A · utility
10Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | May 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method that blocks access to a computer device, for example a direct memory access controllerdevice (50), coupled to a PCI bus (30). In a computer system (10) with a PCI bus (30), the present invention couples a glue logic circuit (70) to the PCI bus (30) to block access to the target computer device. The glue logic circuit (70) can also allow access to a requested computer device. In another aspect, the present invention couples a control module (170) to the PCI bus (30) to block access to the target computer device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.