Method for promoting transmission speed of memory card
A technology of transmission speed and memory card, applied in the field of data memory card, can solve the problems of inflexible operation, lack of availability, limited data transmission rate, etc., and achieve the effect of improving transmission rate, saving power, and simple and feasible operation process.
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[0051] The design concept of the present invention: the present invention expands on the basis of the existing memory card system, and adopts the realization mechanism of expanding contacts on the back of the common memory card to improve the data transmission speed of the memory card.
[0052] The present invention realizes signal transmission by differential signal pairs by adding the same number of pins at the corresponding positions on the back of the ordinary memory card, and registers the CSD register (Card Specific Data) of the ordinary memory card. This register is used to indicate and record the normal state of the memory card. Conditions required for operation) to add a flag to the corresponding position to indicate whether the memory card of the card reader supports high-speed differential transmission mode, and add a corresponding switch between normal transmission mode and high-speed differential transmission in the control flow of the ordinary memory card The comm...
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