/**
 * @brief Bit-field structure of the state of the packet reception
 */
typedef struct{
    uint32_t Length         :16;        /*!< The number of bytes in the packet including header and CRC. */
    uint32_t PF_ERR         :1;         /*!< A sign package PAUSE. */
    uint32_t CF_ERR         :1;         /*!< A sign Management Pack (filtering by MAC and special tags in the field length - 13.14 - octets). */
    uint32_t LF_ERR         :1;         /*!< A sign excess packet length 1518 octets. */
    uint32_t SF_ERR         :1;         /*!< A sign of lack of packet length 64 octets. */
    uint32_t LEN_ERR        :1;         /*!< A sign mismatch between the actual length and the length specified in the length field - 13.14 octets. */
    uint32_t DN_ERR         :1;         /*!< A sign bit of the packet is not a multiple of 8. */
    uint32_t CRC_ERR        :1;         /*!< A sign mismatch packet CRC. */
    uint32_t SMB_ERR        :1;         /*!< A sign of the presence in the packet error nibbles. */
    uint32_t MCA            :1;         /*!< A sign group package (MAC matches HASH). */
    uint32_t BCA            :1;         /*!< A sign of the broadcast packet (MAC = FF:FF:FF:FF:FF:FF). */
    uint32_t UCA            :1;         /*!< A sign individual package (MAC corresponds to the set). */
}ETH_StatusPacketReceptionBitFileds;

Bit-field structure ...

typedef struct{
    uint32_t Length;        /*!< The number of bytes in the packet including header and CRC. */
    uint32_t PF_ERR;         /*!< A sign package PAUSE. */
    //...
}ETH_StatusPacketReceptionBitFileds;

identifieropt attribute-specifier-seqopt: constant-expression