include/regs/xmega_osc.h File Reference

Xmega Oscillator register definitions. More...

#include <chip/memory-map.h>
#include <io.h>

Go to the source code of this file.

Defines
Register Offsets
#define	XMEGA_OSC_CTRL   0x00
	Oscillator Control.
#define	XMEGA_OSC_STATUS   0x01
	Oscillator Status.
#define	XMEGA_OSC_XOSCCTRL   0x02
	XOSC Control.
#define	XMEGA_OSC_XOSCFAIL   0x03
	XOSC Failure Detection.
#define	XMEGA_OSC_RC32KCAL   0x04
	32 kHz Oscillator Calibration
#define	XMEGA_OSC_PLLCTRL   0x05
	PLL Control.
#define	XMEGA_OSC_DFLLCTRL   0x06
	DFLL Control.
Bitfields in CTRL
#define	XMEGA_OSC_RC2MEN_BIT   0
	2 MHz RCOSC Enable
#define	XMEGA_OSC_RC32MEN_BIT   1
	32 MHz RCOSC Enable
#define	XMEGA_OSC_RC32KEN_BIT   2
	32 kHz RCOSC Enable
#define	XMEGA_OSC_XOSCEN_BIT   3
	External Oscillator Enable.
#define	XMEGA_OSC_PLLEN_BIT   4
	PLL Enable.
Bitfields in STATUS
#define	XMEGA_OSC_RC2MRDY_BI   0
	2 MHz RCOSC Enable
#define	XMEGA_OSC_RC32MRDY_BIT   1
	32 MHz RCOSC Enable
#define	XMEGA_OSC_RC32KRDY_BIT   2
	32 kHz RCOSC Enable
#define	XMEGA_OSC_XOSCRDY_BIT   3
	External Oscillator Enable.
#define	XMEGA_OSC_PLLRDY_BIT   4
	PLL Enable.
Bitfields in XOSCCTRL
#define	XMEGA_OSC_XOSCSEL_START   0
	Crystal Oscillator Type.
#define	XMEGA_OSC_XOSCSEL_SIZE   4
	Crystal Oscillator Type.
#define	XMEGA_OSC_X32KLPM_BIT   5
	XTAL 32 kHz Low Power Mode.
#define	XMEGA_OSC_FRQRANGE_START   6
	XTAL Frequency Range.
#define	XMEGA_OSC_FRQRANGE_SIZE   2
	XTAL Frequency Range.
Bitfields in XOSCFAIL
#define	XMEGA_OSC_XOSCFDEN_BIT   0
	Failure Detection Enable.
#define	XMEGA_OSC_XOSCFDIF_BIT   1
	Failure Detection Interrupt Flag.
Bitfields in PLLCTRL
#define	XMEGA_OSC_PLLFAC_START   0
	Multiplication Factor.
#define	XMEGA_OSC_PLLFAC_SIZE   5
	Multiplication Factor.
#define	XMEGA_OSC_PLLSRC_START   6
	Clock Source.
#define	XMEGA_OSC_PLLSRC_SIZE   2
	Clock Source.
Bit manipulation macros
#define	OSC_BIT(name)   (1U << XMEGA_OSC_##name##_BIT)
	Create a mask with bit name set.
#define	OSC_BF(name, value)   ((value) << XMEGA_OSC_##name##_START)
	Create a mask with bitfield name set to value.
#define	OSC_BFMASK(name)
	Create a mask of the bitfield name.
#define	OSC_BFEXT(name, regval)
	Extract the value of bitfield name from regval.
#define	OSC_BFINS(name, value, regval)
	Return regval with bitfield name set to value.
Register access macros
#define	osc_read_reg(reg)   _osc_read_reg(reg)
	Read the value of OSC register reg.
#define	_osc_read_reg(reg)   mmio_read8((void *)(OSC_BASE + XMEGA_OSC_##reg))
#define	osc_write_reg(reg, value)   _osc_write_reg(reg, value)
	Write value to OSC register reg.
#define	_osc_write_reg(reg, value)   mmio_write8((void *)(OSC_BASE + XMEGA_OSC_##reg), (value))
#define	osc_write_ccp_reg(reg, value)   _osc_write_ccp_reg(reg, value)
	Write value to CCP-protected OSC register reg.
#define	_osc_write_ccp_reg(reg, value)   mmio_ccp_write8((void *)(OSC_BASE + XMEGA_OSC_##reg), (value))

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Detailed Description

Xmega Oscillator register definitions.

Copyright (C) 2009 Atmel Corporation. All rights reserved.

Definition in file xmega_osc.h.