Input/output data port with a parallel and serial interface

Details Input/output data port with a parallel and serial interface Input/output data port with a parallel and serial interface

1994-02-04

1997-01-21

Harrell, Robert B.

G06F 500

Patent

active

055967248

ABSTRACT:
The present invention disclosed an input/output data port circuit which connects a parallel data bus with an input serial data bus and an output serial data bus. The input/output data port is selectively operable in either a linear mode or a buffered mode. The input/output port is comprised of an interface register that is connected to a parallel data bus, a serial input bus and a serial output bus; a temporary register that is serially connected to the interface register, an outbound register that is connected in parallel to the temporary register and serially connected to a serial bus; and an inbound register that is connected in parallel to the temporary register and serially connected to a serial, bus.

REFERENCES:
patent: 4648105 (1987-03-01), Priebe et al.
Schultes et al, Frequenz, vol. 46 No. 11 pp. 280-284, "Comparison of GMSK Modulators for DECT-Cordless Telephones".

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