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@ -100,61 +100,61 @@
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/* Macros: */
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/** \name SPI Prescaler Configuration Masks */
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//@{
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 2. */
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 2. */
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#define SPI_SPEED_FCPU_DIV_2 SPI_USE_DOUBLESPEED
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 4. */
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 4. */
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#define SPI_SPEED_FCPU_DIV_4 0
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 8. */
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 8. */
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#define SPI_SPEED_FCPU_DIV_8 (SPI_USE_DOUBLESPEED | (1 << SPR0))
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 16. */
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 16. */
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#define SPI_SPEED_FCPU_DIV_16 (1 << SPR0)
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 32. */
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 32. */
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#define SPI_SPEED_FCPU_DIV_32 (SPI_USE_DOUBLESPEED | (1 << SPR1))
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 64. */
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 64. */
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#define SPI_SPEED_FCPU_DIV_64 (SPI_USE_DOUBLESPEED | (1 << SPR1) | (1 << SPR0))
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 128. */
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 128. */
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#define SPI_SPEED_FCPU_DIV_128 ((1 << SPR1) | (1 << SPR0))
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//@}
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/** \name SPI SCK Polarity Configuration Masks */
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//@{
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/** SPI clock polarity mask for \c SPI_Init(). Indicates that the SCK should lead on the rising edge. */
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/** SPI clock polarity mask for \ref SPI_Init(). Indicates that the SCK should lead on the rising edge. */
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#define SPI_SCK_LEAD_RISING (0 << CPOL)
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/** SPI clock polarity mask for \c SPI_Init(). Indicates that the SCK should lead on the falling edge. */
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/** SPI clock polarity mask for \ref SPI_Init(). Indicates that the SCK should lead on the falling edge. */
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#define SPI_SCK_LEAD_FALLING (1 << CPOL)
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//@}
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/** \name SPI Sample Edge Configuration Masks */
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//@{
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/** SPI data sample mode mask for \c SPI_Init(). Indicates that the data should sampled on the leading edge. */
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/** SPI data sample mode mask for \ref SPI_Init(). Indicates that the data should sampled on the leading edge. */
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#define SPI_SAMPLE_LEADING (0 << CPHA)
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/** SPI data sample mode mask for \c SPI_Init(). Indicates that the data should be sampled on the trailing edge. */
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/** SPI data sample mode mask for \ref SPI_Init(). Indicates that the data should be sampled on the trailing edge. */
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#define SPI_SAMPLE_TRAILING (1 << CPHA)
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//@}
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/** \name SPI Data Ordering Configuration Masks */
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//@{
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/** SPI data order mask for \c SPI_Init(). Indicates that data should be shifted out MSB first. */
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/** SPI data order mask for \ref SPI_Init(). Indicates that data should be shifted out MSB first. */
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#define SPI_ORDER_MSB_FIRST (0 << DORD)
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/** SPI data order mask for \c SPI_Init(). Indicates that data should be shifted out LSB first. */
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/** SPI data order mask for \ref SPI_Init(). Indicates that data should be shifted out LSB first. */
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#define SPI_ORDER_LSB_FIRST (1 << DORD)
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//@}
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/** \name SPI Mode Configuration Masks */
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//@{
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/** SPI mode mask for \c SPI_Init(). Indicates that the SPI interface should be initialized into slave mode. */
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/** SPI mode mask for \ref SPI_Init(). Indicates that the SPI interface should be initialized into slave mode. */
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#define SPI_MODE_SLAVE (0 << MSTR)
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/** SPI mode mask for \c SPI_Init(). Indicates that the SPI interface should be initialized into master mode. */
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/** SPI mode mask for \ref SPI_Init(). Indicates that the SPI interface should be initialized into master mode. */
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#define SPI_MODE_MASTER (1 << MSTR)
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//@}
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