Universal interface circuit for microprocessor peripherals
Programmable interface for computer system peripheral circuit card Patent #: 5111423
ApplicationNo. 871518 filed on 04/21/1992
US Classes:710/63, Universal703/25I/O adapter (e.g., port, controller)
ExaminersPrimary: Richardson, Robert L.
Attorney, Agent or Firm
Foreign Patent References
International ClassG06F 013/00
Foreign Application Priority Data1991-04-22 GB
AbstractA peripheral controller is described which is suitable for connecting a selected one of a plurality of peripheral devices to a computer system. The peripheral controller comprises programmable bidirectional line driver/receiver devices which can be operated in an input only mode, an output only mode or a bidirectional mode and which can be set into an appropriate mode by configuration control data sent from the computer system to the peripheral controller. The peripheral controller also includes a re-configurable logic array which can be configured under the control of the configuration control data to implement a particular interface required for the selected peripheral device. This increases the efficiency of use of a peripheral interface.