Monitoring device, semiconductor integrated circuit, and monitoring method
    21.
    发明申请
    Monitoring device, semiconductor integrated circuit, and monitoring method 有权
    监控装置,半导体集成电路和监控方法

    公开(公告)号:US20080147902A1

    公开(公告)日:2008-06-19

    申请号:US11905305

    申请日:2007-09-28

    IPC分类号: G06F3/00

    摘要: A transfer-indication storage unit indicates an address and a data length of data to be transferred by a DMA circuit. An expected value table refers to a transfer indication of the transfer-indication storage unit and stores therein expected values of the address and the data length of the data to be transferred. A transfer-monitoring unit retrieves tag data and a data length of data in a bus. Based on the data length and the tag data notified by the transfer-monitoring unit, a table updating unit updates a start address and the data length in the expected value table. A determining unit determines whether the start address, corresponding to the DMA circuit after data transfer, matches with an end address, and further determines whether the data length has become zero.

    摘要翻译: 转移指示存储单元指示要由DMA电路传送的数据的地址和数据长度。 期望值表是指转移指示存储单元的转移指示,并且其中存储要传送的数据的地址的预期值和数据长度。 转移监视单元检索总线中的标签数据和数据的长度。 基于由传送监视单元通知的数据长度和标签数据,表更新单元更新期望值表中的起始地址和数据长度。 确定单元确定与数据传送之后的DMA电路相对应的起始地址是否与结束地址匹配,并进一步确定数据长度是否变为零。

    DMA circuit
    22.
    发明申请
    DMA circuit 有权
    DMA电路

    公开(公告)号:US20080005386A1

    公开(公告)日:2008-01-03

    申请号:US11589997

    申请日:2006-10-31

    IPC分类号: G06F13/28

    CPC分类号: G06F13/28

    摘要: In a send engine of a protocol/DMA control circuit, a descriptor control circuit obtains a descriptor, and notifies the information of the descriptor to each circuit. A dummy/padding generation circuit generates a data pattern according to the instruction of the descriptor. A write control circuit performs data transfer using the generated data pattern as a dummy transfer data according to the instruction of the descriptor. The write control circuit also inserts the generated data pattern into the transfer data as a padding data according to the instruction of the descriptor, and performs data transfer.

    摘要翻译: 在协议/ DMA控制电路的发送引擎中,描述符控制电路获得描述符,并将描述符的信息通知每个电路。 虚拟/填充生成电路根据描述符的指令生成数据模式。 写控制电路根据描述符的指令,使用生成的数据模式作为虚拟传输数据执行数据传送。 写入控制电路还根据描述符的指令将生成的数据模式作为填充数据插入到传送数据中,并进行数据传送。