| 摘要 |
<p>PROBLEM TO BE SOLVED: To increase reading speed of image data and finely move a display area.SOLUTION: An LCDC 3 generates, from a data transfer request, an address for specifying a reading range of image data in an SDRAM 4 using an address generation circuit 11, and sequentially reads required image data from the SDRAM 4 via a memory controller 5 for each address. The image data is burst transferred via an internal bus 6, and separated at a gap between a layer 0 and a layer 1 of the same pixel stored at the same address by a separation circuit 42. The data of the separated layer 0 and the data of the separated layer 1 are stored respectively in a layer 0 line buffer 43 and a layer 1 line buffer 44.</p> |
