发明名称 |
Apparatus for controlling data transfer between external interfaces through buffer memory using table data having transfer start address transfer count and unit selection parameter |
摘要 |
The present invention transfers data via a buffer memory between first and second external interfaces, on the basis of table data that is set in a table area by a CPU. The table data comprises a transfer start address, a transfer count, and a transfer count unit selection parameter. A transfer count setting section converts the transfer count on the basis of the original transfer count and the transfer count unit selection parameter, then sets the converted transfer count in a transfer count counter. A data transfer section transfers data within a range specified on The basis of the transfer start address and a count result of the transfer count counter.
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申请公布号 |
US5644787(A) |
申请公布日期 |
1997.07.01 |
申请号 |
US19940285051 |
申请日期 |
1994.08.02 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
NAKAMURA, YOSHIHIRO;OGAWA, TAKAO |
分类号 |
G06F3/06;G06F13/28;(IPC1-7):G06F13/00 |
主分类号 |
G06F3/06 |
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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