Core register bit field macros

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

宏定义
#define	_VAL2FLD(field, value)   (((uint32_t)(value) << field ## _Pos) & field ## _Msk)
	Mask and shift a bit field value for use in a register bit range. 更多...
#define	_FLD2VAL(field, value)   (((uint32_t)(value) & field ## _Msk) >> field ## _Pos)
	Mask and shift a register value to extract a bit filed value. 更多...

详细描述

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

宏定义说明

_FLD2VAL

#define _FLD2VAL	(		field,
			value
	)		(((uint32_t)(value) & field ## _Msk) >> field ## _Pos)

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

参数

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

返回

Masked and shifted bit field value.

_VAL2FLD

#define _VAL2FLD	(		field,
			value
	)		(((uint32_t)(value) << field ## _Pos) & field ## _Msk)

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

参数

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

返回

Masked and shifted value.