Enqueue event first-in, first-out buffer (FIFO)
US7570534B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2007 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jan 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F5/065
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, an apparatus comprises a queue, write control logic coupled to the queue and operable in a write clock domain, and a first-in, first-out buffer (FIFO) coupled to the write control logic. The queue is configured to store a plurality of data items, wherein each data item has a type which is one of a plurality of types of data items that can be stored in the queue. The write control logic is configured to maintain write pointers that identify entries in the queue for each of the plurality of types. The write control logic is configured to update the write pointer corresponding to an input type for an input data item written to the queue. Additionally, the write control logic is configured to enqueue a write event in the FIFO to transport the enqueue event to a read clock domain different from the write clock domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.