Interface for connecting a bus to a random access memory using a swing buffer and a buffer manager
US5956741A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Oct 15, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A configurable RAM interface connecting a bus to RAM is adapted to receiving large multiword variable length tokens at a high data arrival rate, using a swing buffer and a buffer manager. An address source provides complete addresses to the interface. The buffer manager has a state machine which transitions among a plurality of states, maintaining status information about the buffers, allocating the buffers for reference by a write address generator, clearing the buffers for occupation by subsequently arriving data, and maintaining status information concerning the buffers. The buffer manager also examines tokens of received data in order to update the status of the arrival buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.