Inter-chip data communications with power-state transition management
US8989071B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2013 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Jun 1, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method includes inter-chip data communications between a power-managed integrated circuit (IC) and a peer IC. The peer IC generates a data frame and prepends a discardable preamble of a predefined size to a payload of the data frame. The predefined size is a size not less than a size of data discarded by the power-managed IC upon the power-managed IC receiving a data frame while in a low-power state. The peer IC transmits the data frame to the power-managed IC. The power-managed IC, while in a low-power state, may receive the data frame from the peer IC and in response to receiving the data frame, begin exiting the low-power state. The power-managed IC, while exiting the low-power state, may discard a portion of the data frame such as for example, some or all of the discardable preamble, without discarding payload.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.