Memory card access circuit and memory card writing method

Abstract

A memory card access circuit and a method for writing a memory card are provided. The memory card access circuit is coupled to a memory and is used to access a memory card. The memory card access circuit includes a direct memory access (DMA)circuit, an interface circuit, and a control circuit. The control circuit is coupled to the DMA circuit and the interface circuit, and is used to perform the following steps: (A) receiving a write command; (B) transmitting the write command to the memory card through the interface circuit; (C) receiving a status message from the memory card; and (D) controlling the DMA circuit to transmit data to be written to the memory card through the interface circuit after determining that the memory card can write data based on the status message.

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