IDE type CD-ROM drive interfacing circuit
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United States of America Patent
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-
Dec 3, 1996
Grant Date -
N/A
app pub date -
Nov 18, 1994
filing date -
Nov 20, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An interface circuit for an IDE-type CD-ROM drive connected to a personal computer using a standard IDE interface according to a hard disk drive interface standard includes a drive selecting circuit for generating a buffer gate signal a control circuit for generating a command signal, a drive read signal, a drive write signal and a drive reset signal responsive to an IDE port address, an input/output read signal, an input/output write signal and a reset signal, for providing the received signal to the IDE interface by receiving handshake signals, a data buffer for transmitting the data in a specified direction determined according to the drive read signal, and a master-slave communication circuit for generating communication signals in response to a reset signal from the IDE interface.
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