发明授权
US5644787A Apparatus for controlling data transfer between external interfaces
through buffer memory using table data having transfer start address
transfer count and unit selection parameter
失效
用于通过使用具有传送开始地址传送计数和单元选择参数的表数据通过缓冲存储器控制外部接口之间的数据传输的装置
- 专利标题： Apparatus for controlling data transfer between external interfaces through buffer memory using table data having transfer start address transfer count and unit selection parameter
- 专利标题（中）： 用于通过使用具有传送开始地址传送计数和单元选择参数的表数据通过缓冲存储器控制外部接口之间的数据传输的装置
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申请号： US285051申请日： 1994-08-02
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公开(公告)号： US5644787A公开(公告)日： 1997-07-01
- 发明人: Yoshihiro Nakamura , Takao Ogawa
- 申请人： Yoshihiro Nakamura , Takao Ogawa
- 申请人地址： JPX Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX5-192545 19930803
- 主分类号： G06F3/06
- IPC分类号： G06F3/06 ; G06F13/28 ; G06F13/00
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.
公开/授权文献
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