System for transferring blocks of data among diverse units having cycle identifier signals to identify different phase of data transfer operations
US5261105A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1990 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | May 4, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/364
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data transfer arrangement for use in a data processing system comprising a processing array and at least one input/output unit and a host for issuing commands, including data transfer commands, to both the processing array and the input/output unit. The processing array and input/output unit include interfaces are interconnected by a bus and comprise an information transfer means, a control transfer means including a cycle identifier transfer means, and a transfer control means. The information transfer means transmits and receives information signals, including arbitration, target select and data signals, over information transfer lines of the bus. The cycle identifier transfer means transmits and receives cycle identifier signals over cycle identifier lines of the bus. The transfer control means is connected to the information transfer means and the control transfer means and enables a data transfer in a plurality of phases, including an arbitration phase, a selection phase and a data transfer phase. In particular, the control transfer means enables the information transfer means to transfer over the information transfer lines (i) arbitration signals in response to receipt of c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.