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MTB CAT1 Peripheral driver library
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MTB CAT1 Peripheral driver library
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SPI configuration structure.
Data Fields | |
| cy_en_scb_spi_mode_t | spiMode |
| Specifies the mode of operation. | |
| cy_en_scb_spi_sub_mode_t | subMode |
| Specifies the submode of SPI operation. | |
| cy_en_scb_spi_sclk_mode_t | sclkMode |
| Configures the SCLK operation for Motorola sub-mode, ignored for all other submodes. | |
| cy_en_scb_spi_parity_t | parity |
| Configures the SPI parity. More... | |
| bool | dropOnParityError |
| Enables the hardware to drop data in the RX FIFO when a parity error is detected. More... | |
| uint32_t | oversample |
| Oversample factor for SPI. More... | |
| uint32_t | rxDataWidth |
| The width of RX data (valid range 4-32). More... | |
| uint32_t | txDataWidth |
| The width of TX data (valid range 4-32). More... | |
| bool | enableMsbFirst |
| Enables the hardware to shift out the data element MSB first, otherwise, LSB first. | |
| bool | enableFreeRunSclk |
| Enables the master to generate a continuous SCLK regardless of whether there is data to send. | |
| bool | enableInputFilter |
| Enables a digital 3-tap median filter to be applied to the input of the RX FIFO to filter glitches on the line. | |
| bool | enableMisoLateSample |
| Enables the master to sample MISO line one half clock later to allow better timings. | |
| bool | enableTransferSeperation |
| Enables the master to transmit each data element separated by a de-assertion of the slave select line (only applicable for the master mode) | |
| uint32_t | ssPolarity |
| Sets active polarity of each SS line. More... | |
| bool | ssSetupDelay |
| Indicates the SPI SELECT setup delay (between SELECT activation and SPI clock). More... | |
| bool | ssHoldDelay |
| Indicates the SPI SELECT hold delay (between SPI clock and SELECT deactivation). More... | |
| bool | ssInterFrameDelay |
| Indicates the SPI SELECT inter-dataframe delay (between SELECT deactivation and SELECT activation). More... | |
| bool | enableWakeFromSleep |
| When set, the slave will wake the device when the slave select line becomes active. More... | |
| uint32_t | rxFifoTriggerLevel |
| When there are more entries in the RX FIFO then this level the RX trigger output goes high. More... | |
| uint32_t | rxFifoIntEnableMask |
| Bits set in this mask will allow events to cause an interrupt (See SPI RX FIFO Statuses for the set of constant) | |
| uint32_t | txFifoTriggerLevel |
| When there are fewer entries in the TX FIFO then this level the TX trigger output goes high. More... | |
| uint32_t | txFifoIntEnableMask |
| Bits set in this mask allow events to cause an interrupt (See SPI TX FIFO Statuses for the set of constants) | |
| uint32_t | masterSlaveIntEnableMask |
| Bits set in this mask allow events to cause an interrupt (See SPI Master and Slave Statuses for the set of constants) | |
| cy_en_scb_spi_parity_t cy_stc_scb_spi_config_t::parity |
Configures the SPI parity.
| bool cy_stc_scb_spi_config_t::dropOnParityError |
Enables the hardware to drop data in the RX FIFO when a parity error is detected.
| uint32_t cy_stc_scb_spi_config_t::oversample |
Oversample factor for SPI.
| uint32_t cy_stc_scb_spi_config_t::rxDataWidth |
The width of RX data (valid range 4-32).
It must be the same as txDataWidth except in National sub-mode.
| uint32_t cy_stc_scb_spi_config_t::txDataWidth |
The width of TX data (valid range 4-32).
It must be the same as rxDataWidth except in National sub-mode.
| uint32_t cy_stc_scb_spi_config_t::ssPolarity |
Sets active polarity of each SS line.
This is a bit mask: bit 0 corresponds to SS0 and so on to SS3. 1 means active high, a 0 means active low.
| bool cy_stc_scb_spi_config_t::ssSetupDelay |
Indicates the SPI SELECT setup delay (between SELECT activation and SPI clock).
'0': With this setting the same timing is generated as in SCB v1 block. 0.75 SPI clock cycles '1': With this setting an additional delay of 1 SPI clock cycle is generated. 1.75 SPI clock cycles Only applies in SPI MOTOROLA submode, when SCLK_CONTINUOUS=0 and oversampling factor>2.
| bool cy_stc_scb_spi_config_t::ssHoldDelay |
Indicates the SPI SELECT hold delay (between SPI clock and SELECT deactivation).
'0': With this setting the same timing is generated as in CAT1A devices. 0.75 SPI clock cycles '1': With this setting an additional delay of 1 SPI clock cycle is generated. 1.75 SPI clock cycles Only applies in SPI MOTOROLA submode, when SCLK_CONTINUOUS=0 and oversampling factor>2.
| bool cy_stc_scb_spi_config_t::ssInterFrameDelay |
Indicates the SPI SELECT inter-dataframe delay (between SELECT deactivation and SELECT activation).
'0': With this setting the same timing is generated as in CAT1A devices. 1.5 SPI clock cycles '1': With this setting an additional delay of 1 SPI clock cycle is generated. 2.5 SPI clock cycles Only applies in SPI MOTOROLA submode, when SCLK_CONTINUOUS=0 and oversampling factor>2.
| bool cy_stc_scb_spi_config_t::enableWakeFromSleep |
When set, the slave will wake the device when the slave select line becomes active.
Note that not all SCBs support this mode. Consult the device datasheet to determine which SCBs support wake from Deep Sleep.
| uint32_t cy_stc_scb_spi_config_t::rxFifoTriggerLevel |
When there are more entries in the RX FIFO then this level the RX trigger output goes high.
This output can be connected to a DMA channel through a trigger mux. Also, it controls the CY_SCB_SPI_RX_TRIGGER interrupt source.
| uint32_t cy_stc_scb_spi_config_t::txFifoTriggerLevel |
When there are fewer entries in the TX FIFO then this level the TX trigger output goes high.
This output can be connected to a DMA channel through a trigger mux. Also, it controls the CY_SCB_SPI_TX_TRIGGER interrupt source.