pmc.c File Reference

#include "chip.h"
#include <assert.h>

Macros
#define	MASK_STATUS0   0xFFFFFFFC
#define	MASK_STATUS1   0xFFFFFFFF

Functions
void	PMC_EnablePeripheral (uint32_t dwId)
	Enables the clock of a peripheral. The peripheral ID is used to identify which peripheral is targeted.
void	PMC_DisablePeripheral (uint32_t dwId)
	Disables the clock of a peripheral. The peripheral ID is used to identify which peripheral is targeted.
void	PMC_EnableAllPeripherals (void)
	Enable all the periph clock via PMC.
void	PMC_DisableAllPeripherals (void)
	Disable all the periph clock via PMC.
uint32_t	PMC_IsPeriphEnabled (uint32_t dwId)
	Get Periph Status for the given peripheral ID.
void	PMC_EnableExtOsc (void)
	Enable external oscillator as main clock input.
void	PMC_DisableExtOsc (void)
	Disable external 12MHz oscillator.
void	PMC_SelectExtOsc (void)
	Select external OSC.
void	PMC_SelectExtBypassOsc (void)
	Select external OSC.
void	PMC_EnableIntRC4_8_12MHz (uint32_t freqSelect)
	Enable internal 4/8/12MHz fast RC as main clock input.
void	PMC_DisableIntRC4_8_12MHz (void)
	Disable internal 4/8/12MHz fast RC.
void	PMC_SetPllaClock (uint32_t mul, uint32_t div)
	Configure PLLA clock by giving MUL and DIV. Disable PLLA when 'mul' set to 0.
void	PMC_SetMckSelection (uint32_t clockSource, uint32_t prescaler)
	Selection of Master Clock.
void	PMC_DisableAllClocks (void)
	Disable all clocks.
void	PMC_ConfigureMckWithPlla (uint32_t mul, uint32_t div, uint32_t prescaler)
	Configure PLLA as clock input for MCK.
void	PMC_EnableXT32KFME (void)
	Configure PLLA as clock input for MCK.
void	PMC_ConfigurePCK0 (uint32_t MasterClk, uint32_t prescaler)
	Configure PLLA as clock input for MCK.
void	PMC_ConfigurePCK1 (uint32_t MasterClk, uint32_t prescaler)
	Configure PLLA as clock input for MCK.
void	PMC_ConfigurePCK2 (uint32_t MasterClk, uint32_t prescaler)
	Configure PLLA as clock input for MCK.

Detailed Description

Purpose

Interface for configuring and using Power Management Controller (PMC) peripherals.

Implementation of Power Management Controller (PMC).

Function Documentation

PMC_ConfigureMckWithPlla()

void PMC_ConfigureMckWithPlla	(	uint32_t	mul,
		uint32_t	div,
		uint32_t	prescaler
	)

Configure PLLA as clock input for MCK.

Parameters

mul	PLL multiplier factor (not shifted, don't minus 1).
div	PLL divider factor (not shifted).
prescaler	Master Clock prescaler (shifted as in register).

PMC_ConfigurePCK0()

void PMC_ConfigurePCK0	(	uint32_t	MasterClk,
		uint32_t	prescaler
	)

Configure PLLA as clock input for MCK.

Parameters

mul	PLL multiplier factor (not shifted, don't minus 1).
div	PLL divider factor (not shifted).
prescaler	Master Clock prescaler (shifted as in register).

PMC_ConfigurePCK1()

void PMC_ConfigurePCK1	(	uint32_t	MasterClk,
		uint32_t	prescaler
	)

Configure PLLA as clock input for MCK.

Parameters

mul	PLL multiplier factor (not shifted, don't minus 1).
div	PLL divider factor (not shifted).
prescaler	Master Clock prescaler (shifted as in register).

PMC_ConfigurePCK2()

void PMC_ConfigurePCK2	(	uint32_t	MasterClk,
		uint32_t	prescaler
	)

Configure PLLA as clock input for MCK.

Parameters

mul	PLL multiplier factor (not shifted, don't minus 1).
div	PLL divider factor (not shifted).
prescaler	Master Clock prescaler (shifted as in register).

PMC_DisablePeripheral()

void PMC_DisablePeripheral

(

uint32_t

dwId

)

Disables the clock of a peripheral. The peripheral ID is used to identify which peripheral is targeted.

Note

The ID must NOT be shifted (i.e. 1 << ID_xxx).

Parameters

id	Peripheral ID (ID_xxx).

PMC_EnableIntRC4_8_12MHz()

void PMC_EnableIntRC4_8_12MHz

(

uint32_t

freqSelect

)

Enable internal 4/8/12MHz fast RC as main clock input.

Parameters

freqSelect

fast RC frequency (FAST_RC_4MHZ, FAST_RC_8MHZ, FAST_RC_12MHZ).

PMC_EnablePeripheral()

void PMC_EnablePeripheral

(

uint32_t

dwId

)

Enables the clock of a peripheral. The peripheral ID is used to identify which peripheral is targeted.

Note

The ID must NOT be shifted (i.e. 1 << ID_xxx).

Parameters

id	Peripheral ID (ID_xxx).

PMC_EnableXT32KFME()

void PMC_EnableXT32KFME

(

void

)

Configure PLLA as clock input for MCK.

Parameters

mul	PLL multiplier factor (not shifted, don't minus 1).
div	PLL divider factor (not shifted).
prescaler	Master Clock prescaler (shifted as in register).

PMC_IsPeriphEnabled()

uint32_t PMC_IsPeriphEnabled

(

uint32_t

dwId

)

Get Periph Status for the given peripheral ID.

Parameters

id	Peripheral ID (ID_xxx).

PMC_SetMckSelection()

void PMC_SetMckSelection	(	uint32_t	clockSource,
		uint32_t	prescaler
	)

Selection of Master Clock.

Parameters

clockSource	Master Clock source.
prescaler	Master Clock prescaler.

Note

The PMC_MCKR register must not be programmed in a single write operation (see. Product Data Sheet).

PMC_SetPllaClock()

void PMC_SetPllaClock	(	uint32_t	mul,
		uint32_t	div
	)

Configure PLLA clock by giving MUL and DIV. Disable PLLA when 'mul' set to 0.

Parameters

mul	PLL multiplier factor.
div	PLL divider factor.