Supply Controller (SUPC)

Driver for the SUPC (Supply Controller).

This driver provides access to the main features of the Supply Controller.

Functions
void	supc_disable_brownout_detector (Supc *p_supc)
	Disable the core brownout detector. More...
void	supc_disable_brownout_reset (Supc *p_supc)
	Disable the assertion of core reset signal when a brownout detection occurs. More...
void	supc_disable_monitor_interrupt (Supc *p_supc)
	Disable the assertion of SUPC interrupt signal when a supply monitor detection occurs. More...
void	supc_disable_monitor_reset (Supc *p_supc)
	Disable the assertion of core reset signal when a supply monitor detection occurs. More...
void	supc_disable_voltage_regulator (Supc *p_supc)
	Disable the internal voltage regulator to supply VDDCORE with an external supply. More...
void	supc_enable_backup_mode (Supc *p_supc)
	Switch off the voltage regulator to put the device in backup mode. More...
void	supc_enable_brownout_detector (Supc *p_supc)
	Enable the core brownout detector. More...
void	supc_enable_brownout_reset (Supc *p_supc)
	Enable the assertion of core reset signal when a brownout detection occurs. More...
void	supc_enable_monitor_interrupt (Supc *p_supc)
	Enable the assertion of SUPC interrupt signal when a supply monitor detection occurs. More...
void	supc_enable_monitor_reset (Supc *p_supc)
	Enable the assertion of the core reset signal when a supply monitor detection occurs. More...
void	supc_enable_voltage_regulator (Supc *p_supc)
	Enable the internal voltage regulator. More...
uint32_t	supc_get_status (Supc *p_supc)
	Get supply controller status. More...
void	supc_set_monitor_sampling_period (Supc *p_supc, uint32_t ul_period)
	Set Supply monitor sampling period. More...
void	supc_set_monitor_threshold (Supc *p_supc, uint32_t ul_threshold)
	Set Supply monitor threshold. More...
void	supc_set_wakeup_inputs (Supc *p_supc, uint32_t ul_inputs, uint32_t ul_transition)
	Set system controller wake up inputs. More...
void	supc_set_wakeup_mode (Supc *p_supc, uint32_t ul_mode)
	Set system controller wake up mode. More...
void	supc_switch_sclk_to_32kxtal (Supc *p_supc, uint32_t ul_bypass)
	Switch slow clock source selection to external 32k (Xtal or Bypass) oscillator. More...

void supc_disable_brownout_detector

(

Supc *

p_supc

)

Disable the core brownout detector.

Parameters

p_supc

Pointer to a SUPC instance.

References SUPC_MR_KEY_PASSWD.

void supc_disable_brownout_reset

(

Supc *

p_supc

)

Disable the assertion of core reset signal when a brownout detection occurs.

Parameters

p_supc

Pointer to a SUPC instance.

References SUPC_MR_KEY_PASSWD.

void supc_disable_monitor_interrupt

(

Supc *

p_supc

)

Disable the assertion of SUPC interrupt signal when a supply monitor detection occurs.

Parameters

p_supc

Pointer to a SUPC instance.

void supc_disable_monitor_reset

(

Supc *

p_supc

)

Disable the assertion of core reset signal when a supply monitor detection occurs.

Parameters

p_supc

Pointer to a SUPC instance.

void supc_disable_voltage_regulator

(

Supc *

p_supc

)

Disable the internal voltage regulator to supply VDDCORE with an external supply.

Parameters

p_supc

Pointer to a SUPC instance.

References SUPC_MR_KEY_PASSWD.

void supc_enable_backup_mode

(

Supc *

p_supc

)

Switch off the voltage regulator to put the device in backup mode.

Parameters

p_supc

Pointer to a SUPC instance.

References SUPC_CR_KEY_PASSWD, and UNUSED.

Referenced by run_gpbr_test().

void supc_enable_brownout_detector

(

Supc *

p_supc

)

Enable the core brownout detector.

Parameters

p_supc

Pointer to a SUPC instance.

References SUPC_MR_KEY_PASSWD.

void supc_enable_brownout_reset

(

Supc *

p_supc

)

Enable the assertion of core reset signal when a brownout detection occurs.

Parameters

p_supc

Pointer to a SUPC instance.

References SUPC_MR_KEY_PASSWD.

void supc_enable_monitor_interrupt

(

Supc *

p_supc

)

Enable the assertion of SUPC interrupt signal when a supply monitor detection occurs.

Parameters

p_supc

Pointer to a SUPC instance.

void supc_enable_monitor_reset

(

Supc *

p_supc

)

Enable the assertion of the core reset signal when a supply monitor detection occurs.

Parameters

p_supc

Pointer to a SUPC instance.

void supc_enable_voltage_regulator

(

Supc *

p_supc

)

Enable the internal voltage regulator.

Parameters

p_supc

Pointer to a SUPC instance.

References SUPC_MR_KEY_PASSWD.

uint32_t supc_get_status

(

Supc *

p_supc

)

Get supply controller status.

Parameters

p_supc

Pointer to a SUPC instance.

Returns

The status of supply controller.

void supc_set_monitor_sampling_period	(	Supc *	p_supc,
		uint32_t	ul_period
	)

Set Supply monitor sampling period.

Parameters

p_supc	Pointer to a SUPC instance.
ul_period	Supply monitor sampling period.

void supc_set_monitor_threshold	(	Supc *	p_supc,
		uint32_t	ul_threshold
	)

Set Supply monitor threshold.

Parameters

p_supc	Pointer to a SUPC instance.
ul_threshold	Supply monitor threshold (between 1.9V and 3.4V).

void supc_set_wakeup_inputs	(	Supc *	p_supc,
		uint32_t	ul_inputs,
		uint32_t	ul_transition
	)

Set system controller wake up inputs.

Parameters

p_supc	Pointer to a SUPC instance.
ul_inputs	Bitmask of wake-up inputs that can force wake up of the core power supply.
ul_transition	Bitmask of level transition of the wake-up inputs. 1 means a high-to-low level transition forces the wake up of core power supply. 0 means a low-to-high level transition forces the wake up of core power supply.

void supc_set_wakeup_mode	(	Supc *	p_supc,
		uint32_t	ul_mode
	)

Set system controller wake up mode.

Parameters

p_supc	Pointer to a SUPC instance.
ul_mode	Bitmask of wake up mode (please refer to datasheet for more details).

Referenced by main(), and run_gpbr_test().

void supc_switch_sclk_to_32kxtal	(	Supc *	p_supc,
		uint32_t	ul_bypass
	)

Switch slow clock source selection to external 32k (Xtal or Bypass) oscillator.

This function disables the PLLs.

Note

Switching sclk back to 32krc is only possible by shutting down the VDDIO power supply.

Parameters

ul_bypass

0 for Xtal, 1 for bypass.

References SUPC_CR_KEY_PASSWD, and SUPC_MR_KEY_PASSWD.