Semiconductor integrated circuit device capable of simultaneousl

Details Semiconductor integrated circuit device capable of simultaneousl Semiconductor integrated circuit device capable of simultaneousl

1997-04-22

1999-11-16

Nguyen, Hoa T.

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

G01R 3128

Patent

active

059876352

ABSTRACT:
An image processor, included in a logic circuit unit, for executing an image processing of data according to the MPEG standard and the like, a memory circuit unit, whose input port is included in the logic circuit unit, for storing image processed data, and a memory control unit, included in the logic circuit unit, for controlling the input/output operation of the memory circuit unit are formed on a semiconductor substrate. Between the memory circuit unit and the memory control unit, a selector is interposed for selecting, in accordance with a test mode signal, an externally input first chip select control signal when the test mode signal is activated, and selecting a second chip select control signal output by a memory control circuit and outputting a chip select signal to the memory circuit unit when the test mode signal is deactivated.

REFERENCES:
patent: 4709279 (1987-11-01), Sano et al.
patent: 5111433 (1992-05-01), Miyamoto
patent: 5369611 (1994-11-01), Miura
patent: 5604756 (1997-02-01), Kawata

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