Entertainment apparatus
AssigneeSony Computer Entertainment Inc.
InventorsHideaki Io, Yasuyuki Yamamoto, Yuichi Inomata, Shinichi Fukushima, Shigekazu Hayashi
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Abstract
An entertainment apparatus comprising a peripheral device and a controller for controlling the peripheral device. The peripheral device and the controller are connected each other by an address bus and a data bus. The peripheral device which receives a DMA acknowledge signal from the controller carries out 32-bit DMA transfer using lower 16 bits of the address bus and the data bus, during assertion of the DMA acknowledge signal.
Claims10
An entertainment apparatus comprising a peripheral device and a controller for controlling the peripheral device,
- wherein the peripheral device and the controller are connected by an address bus and a data bus, and
- wherein at least part of the address bus is used as the data bus in a specifc data transfer which is performed while an acknowledge signal of direct memory access (DMA) transfer is asserted.
An entertainment apparatus comprising:
- a first peripheral device supports direct memory access (DMA) transfer having first data width;
- a second peripheral device supports DMA transfer having a second data width wider than the first data width;
- and
- a controller for controlling the first and second peripheral devices,
- wherein the first and second peripheral devices and the controller are connected by an essential set of an address bus and a data bus,
- wherein the data bus has the first data width, and
- wherein the second peripheral device uses at least a part of the address bus as the data bus in DMA transfer.
Dependencies are inferred from the claim text.