xmega/pll.h File Reference

Chip-specific PLL management functions.

Copyright (c) 2010-2018 Microchip Technology Inc. and its subsidiaries.

#include <compiler.h>

Data Structures
struct	pll_config
	Hardware-specific representation of PLL configuration. More...

Macros
Chip-specific PLL characteristics
#define	NR_PLLS   1
	Number of on-chip PLLs. More...
#define	PLL_MIN_HZ   10000000UL
	Minimum frequency that the PLL can generate. More...
#define	PLL_MAX_HZ   200000000UL
	Maximum frequency that the PLL can generate. More...
#define	PLL_NR_OPTIONS   0
	Number of PLL option bits. More...

Enumerations
enum	pll_source {   PLL_SRC_RC2MHZ = OSC_PLLSRC_RC2M_gc,   PLL_SRC_RC32MHZ = OSC_PLLSRC_RC32M_gc,   PLL_SRC_XOSC = OSC_PLLSRC_XOSC_gc }
	PLL clock source. More...

Functions
static uint32_t	pll_get_default_rate_priv (enum pll_source src, unsigned int mul, unsigned int div)
	Return clock rate for specified PLL settings. More...
Interaction with the PLL hardware
static void	pll_enable (const struct pll_config *cfg, unsigned int pll_id)
	Activate the configuration cfg and enable PLL pll_id. More...
static void	pll_disable (unsigned int pll_id)
	Disable the PLL identified by pll_id. More...
static bool	pll_is_locked (unsigned int pll_id)
	Determine whether the PLL is locked or not. More...
static void	pll_enable_source (enum pll_source src)
	Enable the source of the pll. More...
static void	pll_enable_config_defaults (unsigned int pll_id)
	Enable the pll with the default configuration. More...

PLL configuration
#define	pll_get_default_rate(pll_id)
	Get the default rate in Hz of pll_id. More...
#define	pll_config_defaults(cfg, pll_id)
	Initialize PLL configuration using default parameters. More...
static void	pll_config_init (struct pll_config *cfg, enum pll_source src, unsigned int div, unsigned int mul)
	Initialize PLL configuration from standard parameters. More...
static void	pll_config_read (struct pll_config *cfg, unsigned int pll_id)
	Read the currently active configuration of pll_id. More...
static void	pll_config_write (const struct pll_config *cfg, unsigned int pll_id)
	Activate the configuration cfg on pll_id. More...