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C6748的SPI_Flash例程问题



您好:

在参考SPI FLASH例程时 ,在函数SPIDataFormateConfig(unsigned int dataFormat)中的参数dataFormat有四种值;

SPI_DATA_FORMAT0代表DataFormat Register0;

SPI_DATA_FORMAT1代表DataFormat Register1;

SPI_DATA_FORMAT2代表DataFormat Register2;

SPI_DATA_FORMAT3代表DataFormat Register3;

请问,这四个寄存器和SPI有什么关系?

spi_flash例程中用了寄存器0(SPI_DATA_FORMAT0),如果使用寄存器1、2或者3,有何区别?