Eth_Dmadesctypedef - ST STM32F2 User Manual

UM1940
uint32_t ETH_DMAInitTypeDef::ForwardErrorFrames
Selects or not the forward to the DMA of erroneous frames. This parameter can be a
value of
uint32_t ETH_DMAInitTypeDef::ForwardUndersizedGoodFrames
Enables or disables the Rx FIFO to forward Undersized frames (frames with no Error
and length less than 64 bytes) including pad-bytes and CRC) This parameter can be a
value of
uint32_t ETH_DMAInitTypeDef::ReceiveThresholdControl
Selects the threshold level of the Receive FIFO. This parameter can be a value of
ETH_Receive_Threshold_Control
uint32_t ETH_DMAInitTypeDef::SecondFrameOperate
Selects or not the Operate on second frame mode, which allows the DMA to process a
second frame of Transmit data even before obtaining the status for the first frame.
This parameter can be a value of
uint32_t ETH_DMAInitTypeDef::AddressAlignedBeats
Enables or disables the Address Aligned Beats. This parameter can be a value of
ETH_Address_Aligned_Beats
uint32_t ETH_DMAInitTypeDef::FixedBurst
Enables or disables the AHB Master interface fixed burst transfers. This parameter
can be a value of
uint32_t ETH_DMAInitTypeDef::RxDMABurstLength
Indicates the maximum number of beats to be transferred in one Rx DMA transaction.
This parameter can be a value of
uint32_t ETH_DMAInitTypeDef::TxDMABurstLength
Indicates the maximum number of beats to be transferred in one Tx DMA transaction.
This parameter can be a value of
uint32_t ETH_DMAInitTypeDef::EnhancedDescriptorFormat
Enables the enhanced descriptor format. This parameter can be a value of
ETH_DMA_Enhanced_descriptor_format
uint32_t ETH_DMAInitTypeDef::DescriptorSkipLength
Specifies the number of word to skip between two unchained descriptors (Ring mode)
This parameter must be a number between Min_Data = 0 and Max_Data = 32
uint32_t ETH_DMAInitTypeDef::DMAArbitration
Selects the DMA Tx/Rx arbitration. This parameter can be a value of
ETH_DMA_Arbitration
17.1.4

ETH_DMADescTypeDef

Data Fields
__IO uint32_t Status
uint32_t ControlBufferSize
uint32_t Buffer1Addr
uint32_t Buffer2NextDescAddr
uint32_t ExtendedStatus
uint32_t Reserved1
uint32_t TimeStampLow
uint32_t TimeStampHigh
Field Documentation
__IO uint32_t ETH_DMADescTypeDef::Status
Status
uint32_t ETH_DMADescTypeDef::ControlBufferSize
Control and Buffer1, Buffer2 lengths
ETH_Forward_Error_Frames
ETH_Forward_Undersized_Good_Frames
ETH_Fixed_Burst
DocID028236 Rev 2
ETH_Second_Frame_Operate
ETH_Rx_DMA_Burst_Length
ETH_Tx_DMA_Burst_Length
HAL ETH Generic Driver
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