| 摘要 |
PURPOSE:To cut down the width of a data bus by collecting individual channels in N groups of individual channel control parts consisting of M pieces of channels respectively and connecting thses control parts to the buffers set within a channel concentrated control part with data buses. CONSTITUTION:The buffers are provided within a channel concentrated control part 1 in response to channels respectively. These buffers are divided into N groups and each group contains the M sets of buffers. Then the M sets of individual channel control parts 2-0-2-(N-1) are provided to those the M sets of buffers. The buffers of each group of the part 1 are connected to the buffers of the control parts 2-0-2-(N-1) via data buses 3-0-3-(N-1) respectively.
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