System providing user definable selection of different data transmission modes of drivers of an I/O controller transmitting to peripherals with different data transmission rate
US5701514A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1994 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Apr 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4072
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computing system with a SCSI controller includes SCSI transmission mode selection apparatus and method to switch the transmission line drivers between transmitting in SCSI 1, SCSI 2 or another mode. The controller selects a maximum data transmission rate compatible with each peripheral device connected to the controller. A user-defined option code is decoded by the controller to provide the user with control over transmission mode options for the drivers in the controller. Based on the data transmission rate and the selected option, the controller selects the SCSI transmission mode to use for each driver type, acknowledge line or data lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.