Method and apparatus to expand an on chip FIFO into local memory
US6078565A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1997 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Jun 20, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5681
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A relatively small FIFO queue is located on a semiconductor chip receiving and transmitting data in a computer system, typically a computer network. The FIFO queue has additional storage capability in the form of an expansion into the local memory of the computer system. The front and back ends of the FIFO, which are involved in receiving and transmitting data, are implemented on the chip. The FIFO expands into the space provided in the local memory only when the on-chip portion of the FIFO is full. The middle portion of the FIFO resides in expansion in the local memory. The local memory is accessed only in bursts of multiple credits, both for read transactions and for write transactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.