该控制器从外部重写装置接收数据块并将其存储在第一个缓冲区。
The controller receives a data block from an external rewriting device to store it in the first buffer.
ECC控制器将数据发送给用于将数 据传送到主机装置的直接存储器存取（DMA）缓冲器以及用于对数据进行错误 检测和纠错的ECC块。
The ECC controller transmits the data to a direct memory access (DMA) buffer for transfer to the host device, and to an ECC block for error detection and correction of the data.
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