Title:
CIRCUIT WITH COMBINED FUNCTION OF CIRCULATION REDUNDANCY TEST CODE OSCILLATOR ANDQUASI-RANDOM NUMBER OSCILLATOR
Document Type and Number:
Japanese Patent JPS6378609
Kind Code:
A
Abstract:
A circuit is disclosed which combines the functions of a cyclic redundancy check code (CRCC) generator and a pseudo-random number generator in such a way that common elements are shared rather than duplicated. A 16-stage shift register and two linear feedback paths are included for the CRCC and pseudo-random number generators. A control section of the circuit controls the mode of operation of the circuit according to the state of a mode control signal. A signal on a clear line resets the shift register or initializes it with a selected value depending on the state of the mode control signal. The mode control signal also controls the input of data on a data line and the output of generated CRC and pseudo-random access codes on output lines.
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Inventors:
CHIYAARUZU ROORENSU DEIBISU
JIERII REI SANDAASU
JIEEMUSU AREN RENCHI
JIERII REI SANDAASU
JIEEMUSU AREN RENCHI
Application Number:
JP22054987A
Publication Date:
April 08, 1988
Filing Date:
September 04, 1987
Export Citation:
Assignee:
ABBOTT LAB
International Classes:
G06F11/26; G06F7/58; H03K3/84; H03M13/00; H03M13/09; G01R31/28; (IPC1-7): G06F7/58; H03K3/84
Attorney, Agent or Firm:
Takehiko Saito (1 outside)