Expandable data width SAM for a multiport RAM
US5657289A · kind A · utility
59Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Aug 30, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5681
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multiport memory is described which includes a random access memory (RAM) and serial access memories (SAMs). The multiport memory is well suited for storing asynchronous transfer mode (ATM) data cells. Control circuitry is provided to allow the multiport memory to be easily configured for operating at different input data rates. This is accomplished by configuring several of the SAMs to store a portion of an input ATM cell on an input clock cycle. The full ATM cell is stored in less clock cycles and can be transferred from the SAMs to the RAM in a single transfer cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.