| 摘要 |
PROBLEM TO BE SOLVED: To improve memory access efficiency by burst access without causing a bank conflict and to secure real-time performance during serial scanning. SOLUTION: The image rotation system, which has a receive memory receiving and storing data to be entered and a data buffer temporarily accumulating the data, has means for writing the data in the receive memory, means for reading out the data from the receive memory and writing the data in the data buffer, means for slicing the data from the data buffer and performing image rotation, and means for writing a result after the image rotation into a memory. The system has means for performing burst write access with continuous addresses and switching banks for each line when storing the data in the receive memory, and has means for performing data allocation by performing burst read access switching banks for each line when reading out the data from the receive memory and writing it in the data buffer. COPYRIGHT: (C)2004,JPO
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