/* param base MU peripheral base address. param regIndex RX register index. return The received message.  */
uint32_t MU_ReceiveMsg(MU_Type *base, uint32_t regIndex)
/* param base MU peripheral base address. param regIndex RX register index. return The received message.  */
uint32_t MU_ReceiveMsg(MU_Type *base, uint32_t regIndex)
{
    assert(regIndex < MU_TR_COUNT);
    while (0U == (base->SR & (((uint32_t)kMU_Rx0FullFlag) >> regIndex)))
    {
        ;
    }
    return base->RR[regIndex];
}