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US09417952B2 Direct memory access (DMA) unit with error detection 有权
具有错误检测功能的直接存储器访问(DMA)单元

Direct memory access (DMA) unit with error detection
Abstract:
Systems and methods for self-checking a direct memory access system are disclosed. These may include generating a check sum value associated with a first job of the plurality of jobs, the first job comprising a read job; if a first predetermined check value is available, comparing the first check sum value with the first predetermined check value; generating a second check sum value associated with a last job of the plurality of jobs, the last job comprising a write job; if a second predetermined check value is available, comparing the second check sum value with the second predetermined check value; and if the second predetermined check value is not available, comparing the first check sum value with the second check sum value.
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