System and method for performing memory fetches for an ATM card
US6279081A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1998 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0862
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is generally directed to a system and method for fetching data from a system memory to an ATM card. The method includes the steps of receiving a request (via a PCI bus) to fetch data from memory, and identifying the request as an ATM request. The method then determines, based on the start address, the number of cache lines that will be implicated by the fetch. Then, the method automatically fetches the appropriate number of cache lines into the cache, and then passes the data to the ATM card, via the PCI bus. In accordance with another aspect of the present invention, a system is provided for fetching data from memory for an ATM card. Broadly, the system includes a system memory for data storage and a cache memory for providing high-speed (retrieval) temporary storage of data, the cache memory being disposed in communication with the system memory via a high-speed system bus. The system further includes a PCI bus in communication with the cache memory via an input/output (I/O) bus. A first mechanism is configured to identify a fetch for data from memory to the PCI bus by an ATM card. A second mechanism is configured to determine the number of lines of the cach…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.