发明申请
- 专利标题： DMA engine for fetching words in reverse bit order
- 专利标题（中）： DMA引擎用于以相反的位顺序取出字
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申请号： US10736125申请日： 2003-12-15
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公开(公告)号： US20050036614A1公开(公告)日： 2005-02-17
- 发明人: Ramadas Pai , Manoj Vajhallya , Chhavi Kishore , Bhaskar Sherigar , Himakiran Kodihalli , Sandeep Bhatia , Gaurav Aggarwal , Sivagururaman Mahadevan , Vijayanand Aralaguppe
- 申请人： Ramadas Pai , Manoj Vajhallya , Chhavi Kishore , Bhaskar Sherigar , Himakiran Kodihalli , Sandeep Bhatia , Gaurav Aggarwal , Sivagururaman Mahadevan , Vijayanand Aralaguppe
- 主分类号： G06F13/28
- IPC分类号： G06F13/28 ; H04N7/167 ; H04N7/26 ; H04N7/50
摘要：
Presented herein is a direct memory access engine for providing data words in reverse order. The data words are fetched in batches comprising a predetermined number of data words starting from the last data word and proceeding to the first data word. The batches are stored in a local buffer. The contents of the local buffer are transmitted in reverse order. A set of multiplexers reverses the bit positions of the words in the local buffer.
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