| 摘要 |
<p>A data transfer device for continuously transferring data read from the memory of one circuit to another circuit through a data bus. The data transfer device includes a DMA for starting to write data of a memory capable of reading out the data in blocks of bytes from a byte boundary. Such a data transfer device can be advantageously applied to a video game apparatus. The basic construction of the data relay device comprises a plurality of data transmission/reception circuit apparatuses, a plurality of bus interface circuits connected through corresponding buses, and a direct memory access circuit (DMA) for transferring data from one bus interface circuit to another bus interface circuit. The bus interface circuits are constructed to divide and combine the data depending on the bus size and to transfer them to other bus interface circuits.</p> |
