MessageSender服务负责从传出的队列获取消息，然后将它们传送给适当的外部系统。
The message Sender service is responsible for picking up messages from the outbound queues and delivering them to the appropriate external system.
DMA控制器可以无需CPU介入而在内部存储器、外部存储器和芯片外设之间传送数据，其在DSP系统中有广泛的应用价值。
The DMA controller can transmit data among the interior memorizer, exterior memorizer and chip peripheral without the CPU intervention. It has comprehensive application value in the DSP system.
DMA控制器可以无需CPU介入而在内部存储器、外部存储器和芯片外设之间传送数据，其在DSP系统中有广泛的应用价值。
The DMA controller can transmit data among the interior memorizer, exterior memorizer and chip peripheral without the CPU intervention. It has comprehensive application value in the DSP system.
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