Power Manager#

Introduction#

The Power Manager is a platform-level software module that manages the system's power states. The power state requirements are set by the different software modules (drivers, stacks, application code, etc...). Power Manager also offers a notification mechanism through which any piece of software module can be notified of power state transitions through callbacks.

Initialization

Power Manager must be initialized before any call to the Power Manager API. If sl_system is used, only sl_system_init() must be called, otherwise sl_si91x_power_manager_init() must be called manually.

Add and remove requirements

The driver/application can add and remove power state requirements at runtime. Adding requirement function calls will change the power state. Removing requirement function calls will not have any effect for state transition. sl_si91x_power_manager_add_peripheral_requirement()

sl_si91x_power_manager_remove_peripheral_requirement()

Subscribe to events

It is possible to get notified when the system transitions from a power state to another power state. This can allow to do some operations depending on which level the system goes, such as saving/restoring context. sl_si91x_power_manager_subscribe_ps_transition_event()

sl_si91x_power_manager_unsubscribe_ps_transition_event()

Sleep

When the software has no more operations and only needs to wait for an event, the software must call sl_si91x_power_manager_sleep().

Query callback functions

Is OK to sleep

Between the time sl_si91x_power_manager_sleep() is called and the MCU goes to sleep, an ISR may occur and require the system to resume at that time instead of sleeping. In this case, a callback is called in a critical section to validate that the MCU can go to sleep.

The function sl_si91x_power_manager_is_ok_to_sleep() will be generated automatically by Simplicity Studio's wizard. The function will look at multiple software modules from the SDK to make a decision. The application can contribute to the decision by defining the function app_is_ok_to_sleep(). If any of the software modules (including the application via app_is_ok_to_sleep()) return false, the process of entering in sleep will be aborted.

Sleep on ISR exit

When the system enters sleep, the only way to wake it up is via an interrupt or exception. By default, Power Manager will assume that when an interrupt occurs and the corresponding ISR has been executed, the system must not go back to sleep. However, in the case where all the processing related to this interrupt is performed in the ISR, it is possible to go back to sleep by using this hook.

The function sl_si91x_power_manager_sleep_on_isr_exit() will be generated automatically by Simplicity Studio's wizard. The function will look at multiple software modules from the SDK to make a decision. The application can contribute to the decision by defining the function app_sleep_on_isr_exit(). The generated function will make a decision based on the value returned by the different software modules (including the application via app_sleep_on_isr_exit()):

  • SL_SI91X_POWER_MANAGER_ISR_IGNORE: if the software module did not cause the system wakeup and/or doesn't want to contribute to the decision.

  • SL_SI91X_POWER_MANAGER_ISR_SLEEP: if the software module did cause the system wakeup, but the system should go back to sleep.

  • SL_SI91X_POWER_MANAGER_ISR_WAKEUP: if the software module did cause the system wakeup, and the system should not go back to sleep.

If any software module returned SL_SI91X_POWER_MANAGER_ISR_SLEEP and none returned SL_SI91X_POWER_MANAGER_ISR_WAKEUP, the system will go back to sleep. Any other combination will cause the system not to go back to sleep.

Debugging feature

By installing the Power Manager debug component and setting the configuration define SL_SI91X_POWER_MANAGER_DEBUG to 1, it is possible to record the requirements currently set and their owner. It is possible to print a table at any time that lists all the added requirements and their owner. This table can be printed by calling the function: Make sure to add the following define

#define CURRENT_MODULE_NAME // Module printable name here

to any application code source file that adds and removes requirements.


Configuration#

Power Manager allows configuration of RAM retention, peripheral states, wakeup sources, and clock scaling.


Usage#

Usage Example

#define EM_EVENT_MASK_ALL  (SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS4
                            | SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS4
                            | SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS3
                            | SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS3
                            | SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS2
                            | SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS2
                            | SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_SLEEP)

static void power_manager_app(void)
{
sl_status_t status;
sl_power_manager_ps_transition_event_handle_t handle;
sl_power_manager_ps_transition_event_info_t info = { .event_mask = PS_EVENT_MASK, .on_event = transition_callback };


// Subscribe the state transition callback events, the ored value of flag and function pointer is passed in this API.
status = sl_si91x_power_manager_subscribe_ps_transition_event(&handle, &info);
if (status != SL_STATUS_OK) {
  // If status is not OK, return with the error code.
  return;
 }
// Configuring the RAM retention used for sleep-wakeup.
sl_power_ram_retention_config_t config;
 config.configure_ram_banks = true;
 config.m4ss_ram_banks      = SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_8 | SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_9 | SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_10;
 config.ulpss_ram_banks     = SL_SI91X_POWER_MANAGER_ULPSS_RAM_BANK_2 | SL_SI91X_POWER_MANAGER_ULPSS_RAM_BANK_3;
 // RAM retention modes are configured and passed into this API.
 status = sl_si91x_power_manager_configure_ram_retention(&config);
 if (status != SL_STATUS_OK) {
 // If status is not OK, return with the error code.
  return;
 }

// Change state to PS2
sl_si91x_power_manager_add_ps_requirement(SL_SI91X_POWER_MANAGER_PS2);

// CODE BLOCK //

// Change state to PS4
// Removed PS2 requirement as it is no longer required.
sl_si91x_power_manager_remove_ps_requirement(SL_SI91X_POWER_MANAGER_PS2);
sl_si91x_power_manager_add_ps_requirement(SL_SI91X_POWER_MANAGER_PS2);

// SLEEP_WAKEUP

// Initialize wakeup source
// Replace the wakeup source peripheral macro defined in sl_si91x_power_manager.h file
// It sets the below peripheral as wakeup source
sl_si91x_power_manager_set_wakeup_source(WAKEUP_SOURCE, true);
sl_si91x_power_manager_sleep();
}

Modules#

sl_power_ram_retention_config_t

sl_power_peripheral_t

sl_power_manager_ps_transition_event_info_t

sl_power_manager_ps_transition_event_handle_t

Enumerations#

enum
SL_SI91X_POWER_MANAGER_PS0 = 0
SL_SI91X_POWER_MANAGER_PS1
SL_SI91X_POWER_MANAGER_PS2
SL_SI91X_POWER_MANAGER_PS3
SL_SI91X_POWER_MANAGER_PS4
SL_SI91X_POWER_MANAGER_SLEEP
SL_SI91X_POWER_MANAGER_STANDBY
LAST_ENUM_POWER_STATE
}

Enumeration for the power states.

enum
SL_SI91X_POWER_MANAGER_POWERSAVE
SL_SI91X_POWER_MANAGER_PERFORMANCE
LAST_ENUM_CLOCK_SCALING
}

Enumeration for clock scaling parameters.

enum
SL_SI91X_POWER_MANAGER_ISR_IGNORE = (1UL << 0UL)
SL_SI91X_POWER_MANAGER_ISR_SLEEP = (1UL << 1UL)
SL_SI91X_POWER_MANAGER_ISR_WAKEUP = (1UL << 2UL)
}

On ISR Exit Hook answer.

Typedefs#

typedef uint32_t

Mask of all the event(s) to listen to.

typedef void(*
sl_power_manager_ps_transition_on_event_t)(sl_power_state_t from, sl_power_state_t to)

Typedef for the user-supplied callback function which is called when a power state transition occurs.

Functions#

sl_status_t

To initialize the Power Manager service.

__STATIC_INLINE void

To disable the interrupts.

__STATIC_INLINE void

To enable the interrupts.

__STATIC_INLINE sl_status_t

To add a requirement on power states.

__STATIC_INLINE sl_status_t

To remove requirement on power states.

sl_status_t

To configure the clock scaling.

sl_status_t
sl_si91x_power_manager_add_peripheral_requirement(sl_power_peripheral_t *peripheral)

To add the peripheral requirement.

sl_status_t
sl_si91x_power_manager_remove_peripheral_requirement(sl_power_peripheral_t *peripheral)

To remove the peripheral requirement.

sl_status_t
sl_si91x_power_manager_subscribe_ps_transition_event(sl_power_manager_ps_transition_event_handle_t *event_handle, const sl_power_manager_ps_transition_event_info_t *event_info)

To register a callback to be called on given power state transition(s).

sl_status_t
sl_si91x_power_manager_unsubscribe_ps_transition_event(sl_power_manager_ps_transition_event_handle_t *event_handle, const sl_power_manager_ps_transition_event_info_t *event_info)

To unregister an event callback handle on power state transition.

sl_status_t

To move into sleep mode and wait for the peripheral to be set as a wakeup source to trigger and wake up the M4 SoC.

void

To move into standby state and wait for the interrupt.

sl_status_t
sl_si91x_power_manager_set_wakeup_sources(uint32_t source, boolean_t add)

To configure the wakeup sources.

sl_status_t
sl_si91x_power_manager_configure_ram_retention(sl_power_ram_retention_config_t *config)

To retain the RAM in low power state either by using size or RAM bank as input parameters.

To return the current power state.

uint8_t *

To get the current requirements on all the power states.

void

To de-initialize the Power Manager service.

void

To print a table that describes the current requirements on each power state and their owner.

Macros#

#define

sl power manager event transition for entering PS4 state.

#define

sl power manager event transition for leaving PS4 state.

#define

sl power manager event transition for entering PS3 state.

#define

sl power manager event transition for leaving PS3 state.

#define

sl power manager event transition for entering PS2 state.

#define

sl power manager event transition for leaving PS2 state.

#define

sl power manager event transition for leaving PS1 state.

#define

sl power manager event transition for leaving sleep state.

#define

Event transition for leaving standby state.

#define

Deep Sleep Timer based wakeup source.

#define

Wireless based wakeup source.

#define

GPIO based wakeup source.

#define

Comparator based wakeup source.

#define

Sysrtc based wakeup source.

#define

ULP peripheral based wakeup source.

#define

SDC (Sensor data collector) based wakeup source.

#define

Alarm based wakeup source.

#define

Second based wakeup source.

#define

Milli second based wakeup source.

#define
SL_SI91X_POWER_MANAGER_WDT_WAKEUP WDT_INTR_BASED_WAKEUP

Watchdog interrupt based wakeup source.

#define
SL_SI91X_POWER_MANAGER_M4SS_PG_EFUSE M4SS_PWRGATE_ULP_EFUSE_PERI

M4SS EFUSE Power Gate.

#define

M4SS RPDMA Power Gate.

#define
SL_SI91X_POWER_MANAGER_M4SS_PG_SDIO_SPI M4SS_PWRGATE_ULP_SDIO_SPI

M4SS SDIO SPI Power Gate.

#define
SL_SI91X_POWER_MANAGER_M4SS_PG_QSPI M4SS_PWRGATE_ULP_QSPI_ICACHE

M4SS QSPI and ICACHE Power Gate.

#define

M4SS IID Power Gate.

#define
SL_SI91X_POWER_MANAGER_M4SS_PG_M4_DEBUG M4SS_PWRGATE_ULP_M4_DEBUG_FPU

M4SS M4 Debug Power Gate.

#define

M4SS M4 Core Power Gate.

#define

M4SS External ROM Power Gate.

#define

ULP Miscellaneous Power Gate.

#define

ULP Capacitive Touch Sensor Power Gate.

#define

ULP UART Power Gate.

#define

ULP SSI Power Gate.

#define

ULP I2S Power Gate.

#define

ULP I2C Power Gate.

#define

ULP AUX Power Gate.

#define

ULP IR Power Gate.

#define

ULP UDMA Power Gate.

#define

ULP FIM Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_MCUBFFS SLPSS_PWRGATE_ULP_MCUBFFS

NPSS MCU BFFS (Battery FF's) Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_MCUFSM SLPSS_PWRGATE_ULP_MCUFSM

NPSS MCU FSM Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_MCURTC SLPSS_PWRGATE_ULP_MCURTC

NPSS MCU RTC (Real Time Clock) Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_MCUWDT SLPSS_PWRGATE_ULP_MCUWDT

NPSS MCU WDT (Watchdog Timer) Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_MCUPS SLPSS_PWRGATE_ULP_MCUPS

NPSS MCU Process Sensor Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_MCUTS SLPSS_PWRGATE_ULP_MCUTS

NPSS MCU Temperature Sensor Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_MCUSTORE1 SLPSS_PWRGATE_ULP_MCUSTORE1

NPSS MCU Storage 1 Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_MCUSTORE2 SLPSS_PWRGATE_ULP_MCUSTORE2

NPSS MCU Storage 2 Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_MCUSTORE3 SLPSS_PWRGATE_ULP_MCUSTORE3

NPSS MCU Storage 3 Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_TIMEPERIOD SLPSS_PWRGATE_ULP_TIMEPERIOD

NPSS Time Period Power Gate.

#define
SL_SI91X_POWER_MANAGER_NPSS_PG_NWPAPB_MCU_CTRL SLPSS_PWRGATE_ULP_NWPAPB_MCU_CTRL

NPSS MCU APB Control Power Gate.

#define

4 KB (Bank 1 of first 192k chunk)

#define

4 KB (Bank 2 of first 192k chunk)

#define

4 KB (Bank 3 of first 192k chunk)

#define

4 KB (Bank 4 of first 192k chunk)

#define

4 KB (Bank 5 of first 192k chunk)

#define

32 KB (Bank 6-7 of first 192k chunk)

#define

64 KB (Bank 9-11 of first 192k chunk)

#define

64 KB (Bank 12-15 of first 192k chunk)

#define

64 KB (Bank 1-4 of second 192k chunk)

#define

64 KB (Bank 1-4 of third 192k chunk)

#define
#define
#define
#define

Enumeration Documentation#

sl_power_state_t#

sl_power_state_t

Enumeration for the power states.

Enumerator
SL_SI91X_POWER_MANAGER_PS0

PS0 Power State.

SL_SI91X_POWER_MANAGER_PS1

PS1 Power State.

SL_SI91X_POWER_MANAGER_PS2

PS2 Power State.

SL_SI91X_POWER_MANAGER_PS3

PS3 Power State.

SL_SI91X_POWER_MANAGER_PS4

PS4 Power State.

SL_SI91X_POWER_MANAGER_SLEEP

Sleep.

SL_SI91X_POWER_MANAGER_STANDBY

Standby.

LAST_ENUM_POWER_STATE

Last enum for validation.


Definition at line 176 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_clock_scaling_t#

sl_clock_scaling_t

Enumeration for clock scaling parameters.

Enumerator
SL_SI91X_POWER_MANAGER_POWERSAVE

Minimum supported frequency in a power state.

SL_SI91X_POWER_MANAGER_PERFORMANCE

Maximum supported frequency in a power state.

LAST_ENUM_CLOCK_SCALING

Last enum for validation.


Definition at line 188 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_on_isr_exit_t#

sl_si91x_power_manager_on_isr_exit_t

On ISR Exit Hook answer.

Enumerator
SL_SI91X_POWER_MANAGER_ISR_IGNORE

The module did not trigger an ISR and it doesn't want to contribute to the decision.

SL_SI91X_POWER_MANAGER_ISR_SLEEP

The module was the one that caused the system wakeup and the system SHOULD go back to sleep.

SL_SI91X_POWER_MANAGER_ISR_WAKEUP

The module was the one that caused the system wakeup and the system MUST NOT go back to sleep.


Definition at line 195 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

Typedef Documentation#

sl_power_manager_ps_transition_event_t#

typedef uint32_t sl_power_manager_ps_transition_event_t

Mask of all the event(s) to listen to.


Definition at line 205 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_power_manager_ps_transition_on_event_t#

typedef void(* sl_power_manager_ps_transition_on_event_t) (sl_power_state_t from, sl_power_state_t to) )(sl_power_state_t from, sl_power_state_t to)

Typedef for the user-supplied callback function which is called when a power state transition occurs.

Parameters
N/Afrom

Power state we are leaving.

N/Ato

Power state we are entering.

This typedef defines a callback function that is called when a power state transition occurs.


Definition at line 217 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

Function Documentation#

sl_si91x_power_manager_init#

sl_status_t sl_si91x_power_manager_init (void )

To initialize the Power Manager service.

Parameters
N/A

Configures the PS4 state with a 100 MHz system clock.

Returns

  • Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_ALREADY_INITIALIZED (0x0012) - Power Manager is already initialized.


Definition at line 277 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_core_entercritical#

__STATIC_INLINE void sl_si91x_power_manager_core_entercritical (void )

To disable the interrupts.

Parameters
N/A

Disables all interrupts by setting PRIMASK. Fault exception handlers will still be enabled.


Definition at line 284 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_core_exitcritical#

__STATIC_INLINE void sl_si91x_power_manager_core_exitcritical (void )

To enable the interrupts.

Parameters
N/A

Enables interrupts by clearing PRIMASK.


Definition at line 294 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_add_ps_requirement#

__STATIC_INLINE sl_status_t sl_si91x_power_manager_add_ps_requirement (sl_power_state_t state)

To add a requirement on power states.

Parameters
[in]state

Power state to add requirement: sl_power_state_t

  • SL_POWER_MANAGER_PS4

  • SL_POWER_MANAGER_PS3

  • SL_POWER_MANAGER_PS2

  • SL_POWER_MANAGER_PS1

The default state for the Power Manager is PS4. If any requirements are added, the Power Manager switches to the state if it is a valid transition. Before transitioning from one state to another, make sure to remove requirements of previous states if any were added. If an invalid state requirement is added, it returns SL_STATUS_INVALID_PARAMETER. If the Power Manager service is not initialized, it returns SL_STATUS_NOT_INITIALIZED. To initialize, call sl_si91x_power_manager_init. To get the requirements on all power states, call sl_si91x_power_manager_get_requirement_table. To know the current power state, use sl_si91x_power_manager_get_current_state.

Returns

  • Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_NOT_INITIALIZED (0x0011) - Power Manager is not initialized.

    • SL_STATUS_INVALID_PARAMETER (0x0021) - Invalid parameter is passed.


Definition at line 326 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_remove_ps_requirement#

__STATIC_INLINE sl_status_t sl_si91x_power_manager_remove_ps_requirement (sl_power_state_t state)

To remove requirement on power states.

Parameters
[in]state

Power state to remove requirement: sl_power_state_t

  • SL_POWER_MANAGER_PS4

  • SL_POWER_MANAGER_PS3

  • SL_POWER_MANAGER_PS2

  • SL_POWER_MANAGER_PS1

Default state for Power Manager is PS4. Removing requirement will not impact on power state transitions. If the current state is PS4 and no other requirements are added, and PS4 requirement is removed then it returns SL_STATUS_INVALID_PARAMETER. If the Power Manager service is not initialized then it returns SL_STATUS_NOT_INITIALIZED, to initialize call sl_si91x_power_manager_init. To get the requirements on all power states, call sl_si91x_power_manager_get_requirement_table. To know the current power state, use sl_si91x_power_manager_get_current_state.

Returns

  • sl_status_t Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_NOT_INITIALIZED (0x0011) - The Power Manager is not initialized.

    • SL_STATUS_INVALID_PARAMETER (0x0021) - Invalid parameter is passed.


Definition at line 372 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_set_clock_scaling#

sl_status_t sl_si91x_power_manager_set_clock_scaling (sl_clock_scaling_t mode)

To configure the clock scaling.

Parameters
[in]mode

Clock scaling mode (of type sl_clock_scaling_t).

PS4 and PS3 states are supported only. Possible values for clock scaling are:

  • POWERSAVE and PERFORMANCE

  • PS4 Performance: 180 MHz clock

  • PS4 Power-save: 100 MHz clock

  • PS3 Performance: 80 MHz clock

  • PS3 Power-save: 32 MHz clock

  • For PS2 state, 20 MHz clock is default.

If the Power Manager service is not initialized, it returns SL_STATUS_NOT_INITIALIZED. To initialize, call sl_si91x_power_manager_init.

Returns

  • Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_NOT_INITIALIZED (0x0011) - Power Manager is not initialized.

    • SL_STATUS_INVALID_PARAMETER (0x0021) - Invalid parameter is passed.

    • SL_STATUS_INVALID_CONFIGURATION (0x0023) - Invalid configuration of mode.


Definition at line 415 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_add_peripheral_requirement#

sl_status_t sl_si91x_power_manager_add_peripheral_requirement (sl_power_peripheral_t * peripheral)

To add the peripheral requirement.

Parameters
[in]peripheral

Structure for different peripherals sl_power_peripheral_t.

Powers on the peripherals specified in the structure. Valid peripherals are passed in the structure sl_power_peripheral_t. The structure members can have the following values:

  • m4ss_peripheral -> Accepts masked value of M4SS peripherals.

  • ulpss_peripheral -> Accepts masked value of ULPSS peripherals.

  • npss_peripheral -> Accepts masked value of NPSS peripherals.

The values of enums can be combined using the 'OR' operator and then passed to the variable.

Returns

  • Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_INVALID_STATE (0x0002) - Not a valid transition.

    • SL_STATUS_NOT_INITIALIZED (0x0011) - Power Manager is not initialized.

    • SL_STATUS_INVALID_PARAMETER (0x0021) - Invalid parameter is passed.


Definition at line 440 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_remove_peripheral_requirement#

sl_status_t sl_si91x_power_manager_remove_peripheral_requirement (sl_power_peripheral_t * peripheral)

To remove the peripheral requirement.

Parameters
[in]peripheral

Structure for different peripherals sl_power_peripheral_t.

Powers off the peripherals specified in the structure. Valid peripherals are passed in the structure sl_power_peripheral_t. The structure members can have the following values:

  • m4ss_peripheral -> Accepts masked value of M4SS peripherals.

  • ulpss_peripheral -> Accepts masked value of ULPSS peripherals.

  • npss_peripheral -> Accepts masked value of NPSS peripherals.

The values of enums can be combined using the 'OR' operator and then passed to the variable.

Returns

  • Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_NOT_INITIALIZED (0x0011) - Power Manager is not initialized.

    • SL_STATUS_INVALID_PARAMETER (0x0021) - Invalid parameter is passed.


Definition at line 464 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_subscribe_ps_transition_event#

sl_status_t sl_si91x_power_manager_subscribe_ps_transition_event (sl_power_manager_ps_transition_event_handle_t * event_handle, const sl_power_manager_ps_transition_event_info_t * event_info)

To register a callback to be called on given power state transition(s).

Parameters
[in]event_handle

Event handle (no initialization needed).

[in]event_info

Event info structure that contains the event mask and the callback that must be called.

If the Power Manager service is not initialized, it returns SL_STATUS_NOT_INITIALIZED. To initialize, call sl_si91x_power_manager_init.

Returns

  • Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_NOT_INITIALIZED (0x0011) - Power Manager is not initialized.

    • SL_STATUS_NULL_POINTER (0x0022) - Null pointer is passed.

Note

  • Adding and removing power state transition requirement(s) from a callback on a transition event is not supported.

  • The parameters passed must be persistent, meaning that they need to survive until the callback fires.

  • An ASSERT is thrown if the handle is not found.

Usage example:

#define PS_EVENT_MASK          (  SL_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS4 \
                                | SL_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS4  \
                                | SL_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS3 \
                                | SL_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS3  \
                                | SL_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS2 \
                                | SL_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS2  \
                                | SL_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS0 \
                                | SL_POWER_MANAGER_EVENT_TRANSITION_LEAVING_SLEEP)

sl_power_manager_ps_transition_event_handle_t handle;
sl_power_manager_ps_transition_event_info_t info = { .event_mask = PS_EVENT_MASK,
                                                     .on_event   = transition_callback };

void transition_callback(sl_power_state_t from, sl_power_state_t to)
{
  [...]
}

void main(void)
{
  sl_status_t status;

  status = sl_si91x_power_manager_init();
  // Validate the status

  status = sl_si91x_power_manager_subscribe_ps_transition_event(&handle, &info);
  // Validate the status
}

Definition at line 522 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_unsubscribe_ps_transition_event#

sl_status_t sl_si91x_power_manager_unsubscribe_ps_transition_event (sl_power_manager_ps_transition_event_handle_t * event_handle, const sl_power_manager_ps_transition_event_info_t * event_info)

To unregister an event callback handle on power state transition.

Parameters
[in]event_handle

Event handle which must be unregistered (must have been registered previously).

[in]event_info

Event info structure that contains the event mask and the callback that must be called.

If the Power Manager service is not initialized, it returns SL_STATUS_NOT_INITIALIZED. To initialize, call sl_si91x_power_manager_init.

Returns

  • Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_NOT_INITIALIZED (0x0011) - Power Manager is not initialized.

    • SL_STATUS_NULL_POINTER (0x0022) - Null pointer is passed.

Note

  • An ASSERT is thrown if the handle is not found.


Definition at line 550 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_sleep#

sl_status_t sl_si91x_power_manager_sleep (void )

To move into sleep mode and wait for the peripheral to be set as a wakeup source to trigger and wake up the M4 SoC.

Parameters
N/A

It supports PS4, PS3, and PS2 only; it cannot enter sleep mode from any other active states. If any error occurs, it returns the error code and does not transition to sleep mode.

Note

  • This function expects and calls a callback with the following signature: boolean_t sl_si91x_power_manager_is_ok_to_sleep(void). This function can be used to cancel a sleep action and handle the possible race condition where an ISR that would cause a wakeup is triggered right after the decision to call sl_si91x_power_manager_sleep() has been made.

This function also expects and calls a callback with the following signature: boolean_t sl_si91x_power_manager_isr_wakeup(void) after wakeup from sleep. The possible return values are:

  • SL_SI91X_POWER_MANAGER_ISR_IGNORE

  • SL_SI91X_POWER_MANAGER_ISR_SLEEP

  • SL_SI91X_POWER_MANAGER_ISR_WAKEUP

Note

  • It can end up in an infinite sleep-wakeup loop if continuously SL_SI91X_POWER_MANAGER_ISR_SLEEP return value is passed.

  • Pre-conditions:

    • sl_si91x_power_manager_init

    • sl_si91x_power_manager_configure_ram_retention

    • sl_si91x_power_manager_set_wakeup_sources

Returns

  • Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_NOT_INITIALIZED (0x0011) - Power Manager is not initialized.

    • SL_STATUS_INVALID_PARAMETER (0x0021) - Invalid parameter is passed.

    • SL_STATUS_INVALID_STATE (0x0002) - Not a valid transition.


Definition at line 591 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_standby#

void sl_si91x_power_manager_standby (void )

To move into standby state and wait for the interrupt.

Parameters
N/A

Standby transition is possible from PS4, PS3, and PS2 states only. Transition from sleep, PS1, or PS0 is not supported.


Definition at line 603 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_set_wakeup_sources#

sl_status_t sl_si91x_power_manager_set_wakeup_sources (uint32_t source, boolean_t add)

To configure the wakeup sources.

Parameters
[in]source

(uint32_t) Wakeup sources.

[in]add

(boolean_t) True enables and false disables the wakeup source.

One or many wakeup sources can be configured using a logical 'OR' operation. The initialization of the peripheral configured as a wakeup source needs to be performed by the user. The Power Manager only sets it as a wakeup source.

Returns

  • Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_NOT_INITIALIZED (0x0011) - Power Manager is not initialized.

    • SL_STATUS_INVALID_PARAMETER (0x0021) - Invalid parameter is passed.


Definition at line 629 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_configure_ram_retention#

sl_status_t sl_si91x_power_manager_configure_ram_retention (sl_power_ram_retention_config_t * config)

To retain the RAM in low power state either by using size or RAM bank as input parameters.

Parameters
[in]config

Structure for the parameters of RAM retention sl_power_ram_retention_config_t.

Structure member possible values: sl_power_ram_retention_config_t

  • configure_ram_banks -> Boolean to switch between RAM Bank retentions. Either by size or by RAM bank number.

    • Enable -> Use RAM Bank Number.

    • Disable -> Use Size.

  • m4ss_ram_size_kb -> Retains M4SS RAM banks according to the size.

    • Less than 320 KB (Enter 100 for 100 KB).

  • ulpss_ram_size_kb -> Retains ULPSS RAM banks according to the size.

    • Less than 8 KB (Enter 5 for 5 KB).

  • ram_bank_number -> Retains the M4SS and ULPSS RAM Bank using bank number.

Returns

  • Status code indicating the result:

    • SL_STATUS_OK (0x0000) - Success.

    • SL_STATUS_NOT_INITIALIZED (0x0011) - Power Manager is not initialized.

    • SL_STATUS_NULL_POINTER (0x0022) - Null pointer is passed.


Definition at line 662 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_get_current_state#

sl_power_state_t sl_si91x_power_manager_get_current_state (void )

To return the current power state.

Parameters
N/A

Possible return values:

  • 2: SL_POWER_MANAGER_PS2, ///< PS2 Power State

  • 3: SL_POWER_MANAGER_PS3, ///< PS3 Power State

  • 4: SL_POWER_MANAGER_PS4, ///< PS4 Power State

Returns

  • sl_power_state_t enum value indicating the current power state.


Definition at line 675 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_get_requirement_table#

uint8_t * sl_si91x_power_manager_get_requirement_table (void )

To get the current requirements on all the power states.

Parameters
N/A

It returns 5 values starting from PS0 to PS4.

Returns

  • Pointer to a uint8_t type array which contains 5 elements.

Usage example:

void main()
{
  uint8_t *requirement_table;
  sl_si91x_power_manager_init();
  requirement_table = sl_si91x_power_manager_get_requirement_table();
  DEBUGOUT("PS4: %d, PS3: %d, PS2: %d, PS1: %d, PS0: %d", 
           requirement_table[4], 
           requirement_table[3], 
           requirement_table[2], 
           requirement_table[1], 
           requirement_table[0]); 
}

Definition at line 704 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_deinit#

void sl_si91x_power_manager_deinit (void )

To de-initialize the Power Manager service.

Parameters
N/A

It clears all the power requirements and callback event subscriptions. If the Power Manager service is not initialized, it returns SL_STATUS_NOT_INITIALIZED. To initialize, call sl_si91x_power_manager_init.


Definition at line 717 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

sl_si91x_power_manager_debug_print_ps_requirements#

void sl_si91x_power_manager_debug_print_ps_requirements (void )

To print a table that describes the current requirements on each power state and their owner.

Parameters
N/A

Definition at line 54 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager_debug.h

Macro Definition Documentation#

SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS4#

#define SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS4
Value:
  (1 << 0)

sl power manager event transition for entering PS4 state.


Definition at line 66 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS4#

#define SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS4
Value:
  (1 << 1)

sl power manager event transition for leaving PS4 state.


Definition at line 68 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS3#

#define SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS3
Value:
  (1 << 2)

sl power manager event transition for entering PS3 state.


Definition at line 70 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS3#

#define SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS3
Value:
  (1 << 3)

sl power manager event transition for leaving PS3 state.


Definition at line 72 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS2#

#define SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_ENTERING_PS2
Value:
  (1 << 4)

sl power manager event transition for entering PS2 state.


Definition at line 74 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS2#

#define SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS2
Value:
  (1 << 5)

sl power manager event transition for leaving PS2 state.


Definition at line 76 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS1#

#define SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_PS1
Value:
  (1 << 6)

sl power manager event transition for leaving PS1 state.


Definition at line 78 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_SLEEP#

#define SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_SLEEP
Value:
  (1 << 7)

sl power manager event transition for leaving sleep state.


Definition at line 80 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_STANDBY#

#define SL_SI91X_POWER_MANAGER_EVENT_TRANSITION_LEAVING_STANDBY
Value:
  (1 << 8)

Event transition for leaving standby state.


Definition at line 82 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_DST_WAKEUP#

#define SL_SI91X_POWER_MANAGER_DST_WAKEUP
Value:
DST_BASED_WAKEUP

Deep Sleep Timer based wakeup source.


Definition at line 86 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_WIRELESS_WAKEUP#

#define SL_SI91X_POWER_MANAGER_WIRELESS_WAKEUP
Value:
WIRELESS_BASED_WAKEUP

Wireless based wakeup source.


Definition at line 87 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_GPIO_WAKEUP#

#define SL_SI91X_POWER_MANAGER_GPIO_WAKEUP
Value:
GPIO_BASED_WAKEUP

GPIO based wakeup source.


Definition at line 88 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_COMPARATOR_WAKEUP#

#define SL_SI91X_POWER_MANAGER_COMPARATOR_WAKEUP
Value:
COMPR_BASED_WAKEUP

Comparator based wakeup source.


Definition at line 89 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_SYSRTC_WAKEUP#

#define SL_SI91X_POWER_MANAGER_SYSRTC_WAKEUP
Value:
SYSRTC_BASED_WAKEUP

Sysrtc based wakeup source.


Definition at line 90 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_WAKEUP#

#define SL_SI91X_POWER_MANAGER_ULPSS_WAKEUP
Value:
ULPSS_BASED_WAKEUP

ULP peripheral based wakeup source.


Definition at line 91 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_SDCSS_WAKEUP#

#define SL_SI91X_POWER_MANAGER_SDCSS_WAKEUP
Value:
SDCSS_BASED_WAKEUP

SDC (Sensor data collector) based wakeup source.


Definition at line 92 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ALARM_WAKEUP#

#define SL_SI91X_POWER_MANAGER_ALARM_WAKEUP
Value:
ALARM_BASED_WAKEUP

Alarm based wakeup source.


Definition at line 93 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_SEC_WAKEUP#

#define SL_SI91X_POWER_MANAGER_SEC_WAKEUP
Value:
SEC_BASED_WAKEUP

Second based wakeup source.


Definition at line 94 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_MSEC_WAKEUP#

#define SL_SI91X_POWER_MANAGER_MSEC_WAKEUP
Value:
MSEC_BASED_WAKEUP

Milli second based wakeup source.


Definition at line 95 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_WDT_WAKEUP#

#define SL_SI91X_POWER_MANAGER_WDT_WAKEUP
Value:
WDT_INTR_BASED_WAKEUP

Watchdog interrupt based wakeup source.


Definition at line 96 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_PG_EFUSE#

#define SL_SI91X_POWER_MANAGER_M4SS_PG_EFUSE
Value:
M4SS_PWRGATE_ULP_EFUSE_PERI

M4SS EFUSE Power Gate.


Definition at line 99 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_PG_RPDMA#

#define SL_SI91X_POWER_MANAGER_M4SS_PG_RPDMA
Value:
M4SS_PWRGATE_ULP_RPDMA

M4SS RPDMA Power Gate.


Definition at line 100 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_PG_SDIO_SPI#

#define SL_SI91X_POWER_MANAGER_M4SS_PG_SDIO_SPI
Value:
M4SS_PWRGATE_ULP_SDIO_SPI

M4SS SDIO SPI Power Gate.


Definition at line 101 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_PG_QSPI#

#define SL_SI91X_POWER_MANAGER_M4SS_PG_QSPI
Value:
M4SS_PWRGATE_ULP_QSPI_ICACHE

M4SS QSPI and ICACHE Power Gate.


Definition at line 102 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_PG_IID#

#define SL_SI91X_POWER_MANAGER_M4SS_PG_IID
Value:
M4SS_PWRGATE_ULP_IID

M4SS IID Power Gate.


Definition at line 103 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_PG_M4_DEBUG#

#define SL_SI91X_POWER_MANAGER_M4SS_PG_M4_DEBUG
Value:
M4SS_PWRGATE_ULP_M4_DEBUG_FPU

M4SS M4 Debug Power Gate.


Definition at line 104 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_PG_M4_CORE#

#define SL_SI91X_POWER_MANAGER_M4SS_PG_M4_CORE
Value:
M4SS_PWRGATE_ULP_M4_CORE

M4SS M4 Core Power Gate.


Definition at line 105 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_PG_EXTERNAL_ROM#

#define SL_SI91X_POWER_MANAGER_M4SS_PG_EXTERNAL_ROM
Value:
M4SS_PWRGATE_ULP_EXT_ROM

M4SS External ROM Power Gate.


Definition at line 106 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_PG_MISC#

#define SL_SI91X_POWER_MANAGER_ULPSS_PG_MISC
Value:
ULPSS_PWRGATE_ULP_MISC

ULP Miscellaneous Power Gate.


Definition at line 109 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_PG_CAP#

#define SL_SI91X_POWER_MANAGER_ULPSS_PG_CAP
Value:
ULPSS_PWRGATE_ULP_CAP

ULP Capacitive Touch Sensor Power Gate.


Definition at line 110 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_PG_UART#

#define SL_SI91X_POWER_MANAGER_ULPSS_PG_UART
Value:
ULPSS_PWRGATE_ULP_UART

ULP UART Power Gate.


Definition at line 111 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_PG_SSI#

#define SL_SI91X_POWER_MANAGER_ULPSS_PG_SSI
Value:
ULPSS_PWRGATE_ULP_SSI

ULP SSI Power Gate.


Definition at line 112 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_PG_I2S#

#define SL_SI91X_POWER_MANAGER_ULPSS_PG_I2S
Value:
ULPSS_PWRGATE_ULP_I2S

ULP I2S Power Gate.


Definition at line 113 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_PG_I2C#

#define SL_SI91X_POWER_MANAGER_ULPSS_PG_I2C
Value:
ULPSS_PWRGATE_ULP_I2C

ULP I2C Power Gate.


Definition at line 114 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_PG_AUX#

#define SL_SI91X_POWER_MANAGER_ULPSS_PG_AUX
Value:
ULPSS_PWRGATE_ULP_AUX

ULP AUX Power Gate.


Definition at line 115 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_PG_IR#

#define SL_SI91X_POWER_MANAGER_ULPSS_PG_IR
Value:
ULPSS_PWRGATE_ULP_IR

ULP IR Power Gate.


Definition at line 116 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_PG_UDMA#

#define SL_SI91X_POWER_MANAGER_ULPSS_PG_UDMA
Value:
ULPSS_PWRGATE_ULP_UDMA

ULP UDMA Power Gate.


Definition at line 117 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_PG_FIM#

#define SL_SI91X_POWER_MANAGER_ULPSS_PG_FIM
Value:
ULPSS_PWRGATE_ULP_FIM

ULP FIM Power Gate.


Definition at line 118 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_MCUBFFS#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_MCUBFFS
Value:
SLPSS_PWRGATE_ULP_MCUBFFS

NPSS MCU BFFS (Battery FF's) Power Gate.


Definition at line 121 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_MCUFSM#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_MCUFSM
Value:
SLPSS_PWRGATE_ULP_MCUFSM

NPSS MCU FSM Power Gate.


Definition at line 122 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_MCURTC#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_MCURTC
Value:
SLPSS_PWRGATE_ULP_MCURTC

NPSS MCU RTC (Real Time Clock) Power Gate.


Definition at line 123 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_MCUWDT#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_MCUWDT
Value:
SLPSS_PWRGATE_ULP_MCUWDT

NPSS MCU WDT (Watchdog Timer) Power Gate.


Definition at line 124 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_MCUPS#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_MCUPS
Value:
SLPSS_PWRGATE_ULP_MCUPS

NPSS MCU Process Sensor Power Gate.


Definition at line 125 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_MCUTS#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_MCUTS
Value:
SLPSS_PWRGATE_ULP_MCUTS

NPSS MCU Temperature Sensor Power Gate.


Definition at line 126 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_MCUSTORE1#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_MCUSTORE1
Value:
SLPSS_PWRGATE_ULP_MCUSTORE1

NPSS MCU Storage 1 Power Gate.


Definition at line 127 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_MCUSTORE2#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_MCUSTORE2
Value:
SLPSS_PWRGATE_ULP_MCUSTORE2

NPSS MCU Storage 2 Power Gate.


Definition at line 128 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_MCUSTORE3#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_MCUSTORE3
Value:
SLPSS_PWRGATE_ULP_MCUSTORE3

NPSS MCU Storage 3 Power Gate.


Definition at line 129 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_TIMEPERIOD#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_TIMEPERIOD
Value:
SLPSS_PWRGATE_ULP_TIMEPERIOD

NPSS Time Period Power Gate.


Definition at line 130 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_NPSS_PG_NWPAPB_MCU_CTRL#

#define SL_SI91X_POWER_MANAGER_NPSS_PG_NWPAPB_MCU_CTRL
Value:
  SLPSS_PWRGATE_ULP_NWPAPB_MCU_CTRL

NPSS MCU APB Control Power Gate.


Definition at line 131 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_1#

#define SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_1
Value:
RAM_BANK_0

4 KB (Bank 1 of first 192k chunk)


Definition at line 135 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_2#

#define SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_2
Value:
RAM_BANK_1

4 KB (Bank 2 of first 192k chunk)


Definition at line 136 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_3#

#define SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_3
Value:
RAM_BANK_2

4 KB (Bank 3 of first 192k chunk)


Definition at line 137 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_4#

#define SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_4
Value:
RAM_BANK_3

4 KB (Bank 4 of first 192k chunk)


Definition at line 138 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_5#

#define SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_5
Value:
RAM_BANK_4

4 KB (Bank 5 of first 192k chunk)


Definition at line 139 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_6#

#define SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_6
Value:
RAM_BANK_5

32 KB (Bank 6-7 of first 192k chunk)


Definition at line 140 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_7#

#define SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_7
Value:
RAM_BANK_6

64 KB (Bank 9-11 of first 192k chunk)


Definition at line 141 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_8#

#define SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_8
Value:
RAM_BANK_7

64 KB (Bank 12-15 of first 192k chunk)


Definition at line 142 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_9#

#define SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_9
Value:
RAM_BANK_8

64 KB (Bank 1-4 of second 192k chunk)


Definition at line 143 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_10#

#define SL_SI91X_POWER_MANAGER_M4SS_RAM_BANK_10
Value:
RAM_BANK_9

64 KB (Bank 1-4 of third 192k chunk)


Definition at line 144 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_RAM_BANK_1#

#define SL_SI91X_POWER_MANAGER_ULPSS_RAM_BANK_1
Value:
ULPSS_2K_BANK_0

2 KB


Definition at line 145 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_RAM_BANK_2#

#define SL_SI91X_POWER_MANAGER_ULPSS_RAM_BANK_2
Value:
ULPSS_2K_BANK_1

2 KB


Definition at line 146 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_RAM_BANK_3#

#define SL_SI91X_POWER_MANAGER_ULPSS_RAM_BANK_3
Value:
ULPSS_2K_BANK_2

2 KB


Definition at line 147 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h

SL_SI91X_POWER_MANAGER_ULPSS_RAM_BANK_4#

#define SL_SI91X_POWER_MANAGER_ULPSS_RAM_BANK_4
Value:
ULPSS_2K_BANK_3

2 KB


Definition at line 148 of file components/device/silabs/si91x/mcu/drivers/service/power_manager/inc/sl_si91x_power_manager.h