| 摘要 |
A method of writing N/K groups of non-interlaced video data and reading the same, in/from SDRAM used as a frame memory in a PDP type TV receiver, where one frame comprises N x M pixels, each of pixels being sampled with L bits, and then K samples are reordered by L number of weight data and reading the same is described. First, a first bank of the SDRAM is divided into L/2 number of column regions for storing upper L/2 number of weight data according to weights, respectively. Second, a second bank of the SDRAM is divided into L/2 number of column regions for storing lower L/2 number of weight data according to their weight, respectively. Third, the N/K groups of non-interlaced video data corresponding to M vertical line are written into respective column regions in M row of the first and second banks according to the weights, wherein N is the number of horizontal pixels, M is the number of vertical lines, L is the number of subfields, and K is the number of bits of the weight data. Accordingly, in writing the video data based on the non-interlaced scanning method on a frame memory using the SDRAM which is relatively cheap and reading the video data from the frame memory, since a burst write or burst read operation is allowed, the configuration of the write or read address generator can be simplified. |
