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Invention Grant
US08069280B2 Direct memory access apparatus for sending data stored in memory separately from an operation of a main processor and direct memory access method using the same 有权
用于发送与主处理器的操作分离存储在存储器中的数据的直接存储器访问装置和使用其的直接存储器存取方法

Direct memory access apparatus for sending data stored in memory separately from an operation of a main processor and direct memory access method using the same
Abstract:
There is provided a direct memory access apparatus and a direct memory access method.The direct memory access apparatus of the present invention comprises: a variable transmission rule map unit for setting a transmission rule with a variable block length and a variable block interval as a unit of memory transmission rule; a direct memory access unit for sending data line of the variable block length and the variable block interval, in case of access to the unit of memory by using the unit of memory transmission rule determined by the variable transmission rule map unit; and an interface unit for retrieving the unit of memory transmission rule, which is necessary for sending the data line of the variable block length and the variable block interval, from the variable transmission rule map unit and sending the unit of memory transmission rule to the direct memory access unit.
Abstract(Chinese):

提供了直接存储器访问装置和直接存储器访问方法。 本发明的直接存储器访问装置包括：可变传输规则映射单元，用于将具有可变块长度的传输规则和可变块间隔设置为存储器传输规则的单元; 在通过使用由可变传输规则映射单元确定的存储器发送规则的单元访问存储器单元的情况下，发送可变块长度和可变块间隔的数据线的直接存储器存取单元; 以及用于从可变传输规则映射单元检索用于发送可变块长度和可变块间隔的数据线所必需的存储器传输规则单元的接口单元，并将存储器传输规则单元发送到直接 存储器存取单元。

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