/* enable or disable USI UART RX DMA .  */
void USI_UARTRXDMACmd(USI_TypeDef *USIx, u32 NewState)
/* enable or disable USI UART RX DMA .  */
void USI_UARTRXDMACmd(USI_TypeDef *USIx, u32 NewState)
{
	assert_param(IS_ALL_USI_PERIPH(USIx));
	if(NewState != DISABLE ){
		USIx->DMA_ENABLE |= USI_RX_DMA_ENABLE;
	} else {
		USIx->DMA_ENABLE &= (~ USI_RX_DMA_ENABLE);
	}
}