System and method for facilitating built-in self-test of system-on-chips
US11513153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2021 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Apr 19, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/1206
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A control system, that includes a primary controller and various auxiliary controllers, is configured to facilitate a built-in self-test (BIST) of a system-on-chip (SoC). The primary controller is configured to initiate a BIST sequence associated with the SoC. Based on the BIST sequence initiation, each auxiliary controller is configured to schedule execution of various self-test operations on various functional circuits, various memories, and various logic circuits of the SoC by various functional BIST controllers, various memory BIST controllers, and various logic BIST controllers of the SoC, respectively. Based on the execution of the self-test operations, each auxiliary controller further generates various status bits with each status bit indicating whether at least one functional circuit, at least one memory, or at least one logic circuit is faulty. Based on the status bits generated by each auxiliary controller, a fault diagnosis of the SoC is initiated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.