发明名称 |
Data transfer control device and electronic equipment |
摘要 |
<p>A data transfer control device and electronic equipment that make it possible to implement high-speed data transfer while observing restriction that prevent the traversing of page boundaries. A data transfer control device that conforms to the IEEE 1394 standard comprises a page table fetch circuit for fetching a page table from another node if a page table exists in a data buffer at the initiator, a page table creation circuit for creating a virtual page table if no page table exists, and an SBP-2 core for automatically dividing transfer data into a series of packets that do not traverse page boundaries based on the thus fetched or created page table and transmitting them. The page table creation circuit creates a page table in which a portion between a start address and a Kth page boundary is an X-type page table element, a portion between the Kth and Lth page boundaries is a Y-type page table element, and a portion between the Lth page boundary and an end address is a Z-type page table element. <IMAGE></p> |
申请公布号 |
EP1093269(A3) |
申请公布日期 |
2002.09.11 |
申请号 |
EP20000121379 |
申请日期 |
2000.10.12 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
SATO, DAISUKE;HORIUCHI, HIROSHI |
分类号 |
G06F13/38;H04L12/28;H04L12/40;H04L29/10;(IPC1-7):H04L29/06 |
主分类号 |
G06F13/38 |
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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