Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral configuration
Patent
1997-10-21
2000-03-28
Lee, Thomas C.
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral configuration
710 38, 710126, 710131, G06F 1316, G06F 1336
Patent
active
060444126
ABSTRACT:
The present invention, generally speaking, provides for pin sharing between two or more disparate memory devices, a dynamic memory device such as a CD ROM drive or the like and a static memory device such as a ROM integrated circuit. In accordance with one embodiment of the invention, a common set of pins of an integrated circuit are used to interface to a plurality of different information storage device including both a dynamic storage device and static storage device by, in a first mode, using a first subset of the common set of pins to carry data information for one of the devices and, in a second mode, using the first subset of pins to carry address information for another one of the devices. In accordance with another embodiment of the invention, an integrated circuit includes a set of I/O pins, a multiplexer coupled to the set of I/O pins, and multiple device controllers coupled to the multiplexer, including both a dynamic storage device controller and a static storage device controller. Control circuitry is provided for, in a first mode, coupling a first one the device controllers through the multiplexer to the set of I/O pins and for, in a second mode, coupling a second one of the device controllers through the multiplexer to the set of I/O pins.
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Lee Thomas C.
Park Ilwoo
VLSI Technology Inc.
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