发明名称 |
Direct memory access control device and method for automatically updating data transmisson size from peripheral |
摘要 |
A DMA controller includes a channel status generator determining whether the state of a channel connected to a peripheral corresponds to the first part of transmission data when receiving a DMA request from the peripheral; an address generator generating addresses of the peripheral and a memory; a control signal generator generating signals representing DMA operation states; and a buffer temporarily storing data from the peripheral and transmitting them to the memory. The address generator generates an address of a register storing a data transmission size of the peripheral when the channel state represents the first part of the data. The control signal generator generates a control signal for receiving a value stored in the register storing the data transmission size.
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申请公布号 |
US2005138236(A1) |
申请公布日期 |
2005.06.23 |
申请号 |
US20040948045 |
申请日期 |
2004.09.22 |
申请人 |
HWANG IN-KI;HWANG DAE-HWAN |
发明人 |
HWANG IN-KI;HWANG DAE-HWAN |
分类号 |
G06F13/28;(IPC1-7):G06F13/28 |
主分类号 |
G06F13/28 |
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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