Method and apparatus for indirect interface with enhanced programmable direct port
US8184110B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2007 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Mar 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/32
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Device, apparatus and methods for implementing a direct address mode to directly access registers by passing an indirect interface includes a display controller. A plurality of direct access registers for bypassing indirect interface is defined within the display controller. The display controller includes a bus interface having a first pin that is configured to activate the direct address mode and a second pin that configured to identify one of the direct access registers. The first pin in conjunction with the second pin provides a direct address mode through which the non-direct access registers may be directly accessed bypassing the indirect interface so that register index cycle, when accessing memory, may be avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.