| 摘要 |
A display control apparatus includes a comparison control unit which performs a cyclic redundancy check over an arbitrary region of image data. The comparison control unit includes a region control unit which selects a region of the image data based on comparison region information for specifying an arbitrary region of the image displayed on the display unit as a cyclic redundancy check target region, an arithmetic processing unit which performs arithmetic processing for the cyclic redundancy check over a region selected by the region control unit, and a comparison circuit which performs error detection by comparing the result of the arithmetic processing by the arithmetic processing unit with its expected value. Error detection by the cyclic redundancy check is performed only on the target region of the cyclic redundancy check in the arbitrary region, which facilitates the cyclic redundancy check.
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