macro.h File Reference

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Detailed Description

MMU example application.

This file gives an example of using the MMU to manage the memory on AVR32 MCUs.

• Compiler: IAR EWAAVR32 and GNU GCC for AVR32
• Supported devices: All AVR32 devices with MMU.
• AppNote: AVR32113 Configuration and Use of the Memory Management Unit

Author:

Atmel Corporation: http://www.atmel.com
Support email: avr32@atmel.com

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Definition in file macro.h.

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Defines
#define	AVR32_CLEAR_SR_BIT(sregister, bitname)
	Define which clears a bit in system registers.
#define	AVR32_READ_SR_REG(sregister, return_value)   return_value = __builtin_mfsr(sregister)
	Define to read a given system registers.
#define	AVR32_SET_SR_BIT(sregister, bitname)
	define which sets a bit in system registers
#define	AVR32_SET_SR_REG(sregister, regval)   __builtin_mtsr(sregister, regval)
	define sets an entire system register
#define	AVR32_TOGGLE_SR_BIT(sregister, bitname)
	Define which toggles a bit in system registers.

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Define Documentation

#define AVR32_CLEAR_SR_BIT	(	sregister,
		bitname		)

Value:

volatile long avr32_sr_clear_value; \
    avr32_sr_clear_value = __builtin_mfsr(sregister); \
    avr32_sr_clear_value &= ~bitname; \
    __builtin_mtsr(sregister, avr32_sr_clear_value)

Define which clears a bit in system registers.

Parameters:

	sregister	address of the system register to modify
	bitname	offset to the bit which is to be cleared

Definition at line 113 of file macro.h.

Referenced by mmu_invalidate_entry().

#define AVR32_READ_SR_REG	(	sregister,
		return_value		)	return_value = __builtin_mfsr(sregister)

Define to read a given system registers.

Parameters:

	sregister	address of the system register to modify
	return_value	the variable to return the register value to

Definition at line 158 of file macro.h.

Referenced by mmu_add_entry(), mmu_find_index_to_entry(), mmu_init(), mmu_invalidate_entry(), mmu_lock_entries(), mmu_read_bear_and_tlbehi(), mmu_read_entry(), and mmu_reset().

#define AVR32_SET_SR_BIT	(	sregister,
		bitname		)

Value:

volatile long avr32_sr_set_value; \
    avr32_sr_set_value = __builtin_mfsr(sregister); \
    avr32_sr_set_value |= bitname; \
    __builtin_mtsr(sregister, avr32_sr_set_value)

define which sets a bit in system registers

Parameters:

	sregister	address of the system register to modify
	bitname	offset to the bit which is to be set

Definition at line 71 of file macro.h.

#define AVR32_SET_SR_REG	(	sregister,
		regval		)	__builtin_mtsr(sregister, regval)

define sets an entire system register

Parameters:

	sregister	address of the system register to modify
	regval	the register value to set in
	sregister

Definition at line 92 of file macro.h.

Referenced by mmu_add_entry(), mmu_find_index_to_entry(), mmu_init(), mmu_invalidate_entry(), mmu_lock_entries(), mmu_read_entry(), and mmu_reset().

#define AVR32_TOGGLE_SR_BIT	(	sregister,
		bitname		)

Value:

volatile long avr32_sr_toggle_value; \
    avr32_sr_toggle_value = __builtin_mfsr(sregister); \
    avr32_sr_toggle_value ^= bitname; \
    __builtin_mtsr(sregister, avr32_sr_toggle_value)

Define which toggles a bit in system registers.

Parameters:

	sregister	address of the system register to modify
	bitname	offset to the bit which is to be toggled

Definition at line 137 of file macro.h.

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