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The additional commands that are needed to distinguish which kind of card has been

inserted can be seen in figure 7.

Figure 7: SD Card Initialization Flowchart. Taken from SD Specifications Part 1 Version

2.00 [4, 16].

The flowchart in figure 7 can be programmed into the MCU unit to automatically

distinguish the card type during the initialization of the SD card. After this is

accomplished, normal operation can be followed until power has been taken away from

the SD card.

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Cypress Semiconductor CY8C21534 Specifiche Pagina 16