发明名称 |
Look ahead bus transfer request. |
摘要 |
<p>A technique for use in an I/O channel to increase bus bandwidth during DMA data transfers between main system memory and a communication link is disclosed, including a pair of buffers, a plurality of counters adapted to selectively contain a count of data increments therein, and enhanced DMA control logic for monitoring buffer data content amount, and at a predetermined time during a given transfer initiating a bus arbitration so that it is completed simultaneously with the given transfer, thereby enaoling the next data transfer to immediately commence.</p> |
申请公布号 |
EP0378422(A2) |
申请公布日期 |
1990.07.18 |
申请号 |
EP19900300342 |
申请日期 |
1990.01.11 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BAILEY, ROGER NED;MANSFIELD, ROBERT LOCKWOOD;SPENCER, ALEXANDER KOOS |
分类号 |
G06F13/36;G06F13/28 |
主分类号 |
G06F13/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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