Data transfer device and method thereof
US7984351B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2008 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Apr 23, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F5/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A data transfer device transfers data between two clock domains of a data processing device when the data processing device is in a test mode. The data transfer device receives clock signals associated with each clock domain. To transfer data from a first clock domain to a second clock domain the data transfer device identifies transitions of clock signals associated with each clock domain that are sufficiently remote from each other so that data can deterministically be provided by one clock domain and sampled by the other. This ensures that data can be transferred between the clock domains deterministically even when the phase relationship between the clock signals is indeterminate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.