The SD Card Reader reference design allows users to read and write files stored in a SD Card from a PC or another USB host enabled system through the full speed USB module included. The SD Card interface is based on SPI protocol. Mass Storage Device class is used to implement the high level communication between the host application and data memory.
The SD Card reader reference design shows how easy are to interface a SD Card to an 8-bit MCU with a SPI module. This design is an alternative Flexis JM family development board; The user can exchange a MCF51JM128 for a MC9S08JM60 (pin-to-pin compatible). It includes two user LED’s, one button and one expansion header that allows users to access other MCU peripherals like SPI, RGPIO, etc.