Method and apparatus for encoding byte sequence for self-clocked

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3642394, 3642393, 364DIG1, 375359, 341 95, G06F 300, G06F 312, H04L 700, H04L 702

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active

055049290

ABSTRACT:
The present invention removes restrictions on the maximum data transfer rate provided by the Centronics.RTM. and PC-compatible parallel interface (i.e., standard parallel interface). Further, the present invention retains complete compatibility with the standard parallel port and peripheral device cable. With the present invention, a computer (i.e., host) is able to send data through a standard parallel port at a high rate by eliminating the Busy handshaking signal. Further, one to three Input/Output (I/O) instructions can be eliminated for each byte of data transfer.

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Vransesic et al. "Microcomputer Structures", Univ. of Toronto, Saunders College Publishing, 1989 pp. 376-379, 620-622.

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