Core register bit field macros

Macros for use with bit field definitions (xxx_Pos, xxx_Msk). More...

Collaboration diagram for Core register bit field macros:

Topics
	Core Definitions
	Definitions for base addresses, unions, and structures.
#define	_VAL2FLD(field, value)
	Mask and shift a bit field value for use in a register bit range.
#define	_FLD2VAL(field, value)
	Mask and shift a register value to extract a bit filed value.

Detailed Description

Macros for use with bit field definitions (xxx_Pos, xxx_Msk).

Macro Definition Documentation

_FLD2VAL

#define _FLD2VAL	(		field,
			value )

#include <port/ucontroller/nxp/lpc17xx/bootloader/inc/core_cm3.h>

Value:

(((uint32_t)(value) & field ## _Msk) >> field ## _Pos)

Mask and shift a register value to extract a bit filed value.

Parameters

[in]	field	Name of the register bit field.
[in]	value	Value of register. This parameter is interpreted as an uint32_t type.

Returns

Masked and shifted bit field value.

_VAL2FLD

#define _VAL2FLD	(		field,
			value )

#include <port/ucontroller/nxp/lpc17xx/bootloader/inc/core_cm3.h>

Value:

(((uint32_t)(value) << field ## _Pos) & field ## _Msk)

Mask and shift a bit field value for use in a register bit range.

Parameters

[in]	field	Name of the register bit field.
[in]	value	Value of the bit field. This parameter is interpreted as an uint32_t type.

Returns

Masked and shifted value.