发明授权
- 专利标题： Mechanism for high bandwidth DMA transfers in a PCI environment
- 专利标题（中）： PCI环境中高带宽DMA传输的机制
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申请号： US668200申请日： 1996-06-21
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公开(公告)号： US5884050A公开(公告)日： 1999-03-16
- 发明人: William R. Wheeler , Matthew James Adiletta , Samuel Ho , Debra Bernstein , Gilbert M. Wolrich
- 申请人： William R. Wheeler , Matthew James Adiletta , Samuel Ho , Debra Bernstein , Gilbert M. Wolrich
- 申请人地址： MA Maynard
- 专利权人： Digital Equipment Corporation
- 当前专利权人： Digital Equipment Corporation
- 当前专利权人地址： MA Maynard
- 主分类号： G06F13/28
- IPC分类号： G06F13/28 ; G06F13/00
摘要：
A method and apparatus for maximizing the performance of DMA transfers over a PCI.TM. bus are provided which includes a Per-Channel Retry count, Double Buffer Management, Wait Enable functionality, Back Up register functionality, Gather/Scatter mapping, a method for minimization of PIO writes, Read Semaphore functionality, a method for servicing of DMA transfers during FMU latency periods, Valid bit functionality, high and low water thresholds, and re-usable page tables.
公开/授权文献
- US5161635A Motorized golf caddie 公开/授权日：1992-11-10
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