Method and apparatus for providing single channel communications

Details Method and apparatus for providing single channel communications Method and apparatus for providing single channel communications

1996-05-08

1999-06-29

Sheikh, Ayaz R.

395843, 395884, 395307, G06F 1300

Patent

active

059180242

ABSTRACT:
A UART including a logic unit is disclosed, wherein the logic unit automatically enables or disables the UART receiver port whenever data is being processed by the UART for wireless transmission. More specifically, a logic unit is connected to a data store, to a transmit FIFO and to a UART processing unit as well as to an external CPU, wherein the logic unit analyzes the logic states of each of the signals from each of the specified connections to determine whether to enable or disable the receiver unit. An inventive method is also disclosed wherein the logic unit only enables the receiver when the data store is empty and the transmitter FIFO is empty and a receiver enable flag is set to true and a half duplex mode of operation has been specified by an external CPU. Otherwise, the logic enables the receiver only when a full duplex mode of operation has been specified and the receiver enable flag is set to a logic one.

REFERENCES:
patent: 3715496 (1973-02-01), Jones, Jr.
patent: 4740957 (1988-04-01), Cassidy et al.
patent: 4817089 (1989-03-01), Paneth et al.
patent: 4949333 (1990-08-01), Gulick et al.
patent: 5045675 (1991-09-01), Curry
patent: 5119319 (1992-06-01), Tanenbaum
patent: 5140679 (1992-08-01), Michael
patent: 5175766 (1992-12-01), Hamilton
patent: 5179661 (1993-01-01), Copeland, III et al.
patent: 5199105 (1993-03-01), Michael
patent: 5245553 (1993-09-01), Tanenbaum
patent: 5287458 (1994-02-01), Michael et al.
patent: 5349635 (1994-09-01), Scott
patent: 5509126 (1996-04-01), Oprescu et al.
patent: 5564061 (1996-10-01), Davies et al.
patent: 5732625 (1998-03-01), Klinger et al.
Communications Chip Interfaces With Most Microprocessors by Sam Travis, National Semiconductor Corp., Santa Clara, California Electronics, Mar. 16, 1978.
INWAS: Interfacing With Asynchronous Serial Node by David G. Larsen, Peter R. Rony and Jonathan A. Titus, IEEE Transactions On Industrial Electronics and Control Instrumentation, vol., IECI-24, No. 1, Feb. 1977.

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