Address selection for testing of a microprocessor
US7047444B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 24, 2002 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Oct 27, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/27
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A microprocessor with built-in test, comprising: a register for retaining a test address of a test program; a next address generation logic for generating a command address of a command scheduled to be executed next, based on a command address of a command to be executed next; a first multiplexer for selecting, based on a test mode signal, any one of a boot address specifying a bootstrap program and the test address; a second multiplexer for selecting, based on a reset signal, any one of the command address of the command scheduled to be executed next and the address selected by the first multiplexer; and a program counter for retaining the address selected by the second multiplexer and for outputting the retained address to the next address generation logic as the command address of the command to be executed next.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.