Direct memory access (DMA) unit with error detection
    2.
    发明授权
    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

    公开(公告)号:US09417952B2

    公开(公告)日:2016-08-16

    申请号:US14574777

    申请日:2014-12-18

    CPC classification number: G06F11/1004 G06F13/28 G06F13/4022

    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.

    Abstract translation: 公开了一种用于自我检查直接存储器存取系统的系统和方法。 这些可以包括生成与多个作业中的第一作业相关联的校验和值,第一作业包括读取作业; 如果第一预定检查值可用,则将第一校验和值与第一预定校验值进行比较; 生成与所述多个作业的最后作业相关联的第二校验和值,所述最后一个作业包括写入作业; 如果第二预定检查值可用,则将第二校验和值与第二预定校验值进行比较; 并且如果第二预定检查值不可用,则将第一校验和值与第二校验和值进行比较。

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