Functions | |
cy_en_syspm_status_t | Cy_SCB_SPI_DeepSleepCallback (cy_stc_syspm_callback_params_t *callbackParams, cy_en_syspm_callback_mode_t mode) |
This function handles the transition of the SCB SPI into and out of Deep Sleep mode. More... | |
cy_en_syspm_status_t | Cy_SCB_SPI_HibernateCallback (cy_stc_syspm_callback_params_t *callbackParams, cy_en_syspm_callback_mode_t mode) |
This function handles the transition of the SCB SPI into Hibernate mode. More... | |
cy_en_syspm_status_t Cy_SCB_SPI_DeepSleepCallback | ( | cy_stc_syspm_callback_params_t * | callbackParams, |
cy_en_syspm_callback_mode_t | mode | ||
) |
This function handles the transition of the SCB SPI into and out of Deep Sleep mode.
It prevents the device from entering Deep Sleep mode if the SPI slave or master is actively communicating, or there is any data in the TX or RX FIFOs. The following behavior of the SPI SCB depends on whether the SCB block is wakeup-capable or not:
This function must be called during execution of Cy_SysPm_CpuEnterDeepSleep. To do it, register this function as a callback before calling Cy_SysPm_CpuEnterDeepSleep : specify CY_SYSPM_DEEPSLEEP as the callback type and call Cy_SysPm_RegisterCallback.
callbackParams | The pointer to the callback parameters structure cy_stc_syspm_callback_params_t. |
mode | Callback mode, see cy_en_syspm_callback_mode_t |
cy_en_syspm_status_t Cy_SCB_SPI_HibernateCallback | ( | cy_stc_syspm_callback_params_t * | callbackParams, |
cy_en_syspm_callback_mode_t | mode | ||
) |
This function handles the transition of the SCB SPI into Hibernate mode.
It prevents the device from entering Hibernate mode if the SPI slave or master is actively communicating, or there is any data in the TX or RX FIFOs. If the SPI is ready to enter Hibernate mode, it is disabled. If the device failed to enter Hibernate mode, the SPI is re-enabled. While the SPI is disabled, it stops driving the outputs and ignores the inputs. Any incoming data is ignored. Refer to section Low Power Support for more information about SPI pins when SCB disabled.
This function must be called during execution of Cy_SysPm_SystemEnterHibernate. To do it, register this function as a callback before calling Cy_SysPm_SystemEnterHibernate : specify CY_SYSPM_HIBERNATE as the callback type and call Cy_SysPm_RegisterCallback.
callbackParams | The pointer to the callback parameters structure cy_stc_syspm_callback_params_t. |
mode | Callback mode, see cy_en_syspm_callback_mode_t |