SEMC_Init函数中几个参数的意思作用是什么

yanchunqing2009

SEMC_Init(SEMC,&semc_configure); -------->
  /* Configure Queue 0/1 for AXI bus. */
    if (configure->queueWeight.queueaWeight)
    {
        base->BMCR0 = (uint32_t)(configure->queueWeight.queueaWeight);
    }
    if (configure->queueWeight.queuebWeight)
    {
        base->BMCR1 = (uint32_t)(configure->queueWeight.queuebWeight);
    }


寄存器BMCR0/BMCR1中几个字段的作用是什么(红色字体)？谢谢
/*! @brief SEMC AXI queue a weight setting. */
typedef struct _semc_queuea_weight
{
    uint32_t qos : 4;              /*!< weight of qos for queue 0 . */
    uint32_t aging : 4;            /*!< weight of aging for queue 0.*/
    uint32_t slaveHitSwith : 8;    /*!< weight of read/write switch for queue 0.*/
    uint32_t slaveHitNoswitch : 8; /*!< weight of read/write no switch for queue 0  .*/
} semc_queuea_weight_t;

/*! @brief SEMC AXI queue b weight setting. */
typedef struct _semc_queueb_weight
{
    uint32_t qos : 4;           /*!< weight of qos for queue 1. */
    uint32_t aging : 4;         /*!< weight of aging for queue 1.*/
    uint32_t slaveHitSwith : 8; /*!< weight of read/write switch for queue 1.*/
    uint32_t weightPagehit : 8; /*!< weight of page hit for queue 1 only .*/
    uint32_t bankRotation : 8;  /*!< weight of bank rotation for queue 1 only .*/
} semc_queueb_weight_t;

yanchunqing2009

正点原子团队们 请帮忙回复下  上面的作用是什么？谢谢~~~