Patent
1997-06-10
1998-08-11
Teska, Kevin J.
G06F 1300
Patent
active
057940142
ABSTRACT:
A peripheral interface system and apparatus including a pair of integrated circuits, referred to as a system adapter and a socket controller, use a communication protocol, referred to as a windowed-interchip-communication protocol, to interface peripherals, such as PCMCIA cards or infrared devices, and other subsystems having different formats with a CPU system bus. The system adapter communicates to a hard disk drive subsystem using the ATA communication standards to interface an ATA hard disk drive with the CPU system bus. Communication between the system adapter and the socket controller, which communicates with PCMCIA peripheral cards and IR peripherals, is accomplished using the windowed-interchip-communication protocol which may share hardware resources with other communication protocols. Communication between the system adapter and the hard disk drive and between the system adapter and the socket controller may be provided on the same chain of a standard 40 signal ribbon cable. Status detection logic circuitry is included within the socket controller for detecting changes in status of selected signals and notifying the system adapter of the changes in status. This status detection logic circuitry ensures that multiple changes of status of the selected signals are recorded and reported to the system adapter in the order in which the changes occurred.
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Rockwell International R65C00/21 Dual CMOS Microcomputer and R65C29 Dual CMOS Microprocessor Data Book, pp. 3-22 through 3-24, Aug. 1983.
Bezzant Daniel G.
Shetty Suhas Anand
Cirrus Logic Inc.
Mohamed Ayni
Nguyen Frank D.
Sabath Robert P.
Teska Kevin J.
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