CRC calculation system and method for a packet arriving on an n-byte wide bus
US6938197B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2002 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Sep 18, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2001/0094
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a cyclic redundancy check (CRC) calculation system for a packet arriving on an n-byte wide bus. In one embodiment, the system includes a bus-wide CRC subsystem configured to calculate an intermediate CRC value based on complete segments of the packet. In addition, the system includes a byte-wide CRC subsystem, coupled to the bus-wide subsystem, configured to calculate a remaining CRC value based on the intermediate CRC value and one or more bytes within an incomplete segment of the packet on a byte by byte basis. In addition, a method of calculating a CRC value for a packet arriving on a n-byte wide bus and a data transmission system incorporating the system are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.