Data Structures
Collaboration diagram for Data Structures:
|
Data Structures | |
| struct | IfxDma_Dma |
| DMA base address data structure (Module handle) More... | |
| struct | IfxDma_Dma_Channel |
| Channel handle. More... | |
| struct | IfxDma_Dma_ChannelConfig |
| Configuration data structure of the channel. More... | |
| struct | IfxDma_Dma_Config |
| Configuration data structure of the Module. More... | |
Detailed Description
Data Structure Documentation
| struct IfxDma_Dma |
DMA base address data structure (Module handle)
Definition at line 443 of file IfxDma_Dma.h.
| Data Fields | ||
|---|---|---|
| Ifx_DMA * | dma | Specifies the pointer to the DMA registers. |
| struct IfxDma_Dma_Channel |
Channel handle.
Definition at line 454 of file IfxDma_Dma.h.
| Data Fields | ||
|---|---|---|
| Ifx_DMA_CH * | channel | Specifies the pointer to DMA channel registers. |
| IfxDma_ChannelId | channelId | Specifies the DMA channel. |
| Ifx_DMA * | dma | Specifies the pointer to the DMA registers. |
| struct IfxDma_Dma_ChannelConfig |
Configuration data structure of the channel.
Definition at line 463 of file IfxDma_Dma.h.
Collaboration diagram for IfxDma_Dma_ChannelConfig:
| Data Fields | ||
|---|---|---|
| IfxDma_ChannelMove | blockMode | Number of moves in a transfer. |
| IfxDma_ChannelBusPriority | busPriority | Bus priority selection. |
| IfxDma_ChannelId | channelId | Specifies the channel being used. |
| IfxDma_ChannelInterruptControl | channelInterruptControl | The channel transfer interrupt can either be triggered depending on the interruptRaiseThreshold, or each time the transaction count is decremented. |
| boolean | channelInterruptEnabled | The channel transfer interrupt should be triggered. See also channelInterruptControl. |
| Ifx_Priority | channelInterruptPriority | Priority of the channel interrupt trigger. |
| IfxSrc_Tos | channelInterruptTypeOfService | Interrupt service provider. |
| uint32 | destinationAddress | Destination address for the DMA channel. |
| IfxDma_ChannelIncrementCircular | destinationAddressCircularRange | Determines which part of the destination address remains unchanged and therby not updated after each move. |
| IfxDma_ChannelIncrementDirection | destinationAddressIncrementDirection | Decides whether the destination address offset after each move should be added or decremented from the exisiting address. |
| IfxDma_ChannelIncrementStep | destinationAddressIncrementStep | Describes the address offset with which the destination address should be modified after each move. |
| boolean | destinationCircularBufferEnabled | Enables/Disables the destination circular buffering. |
| boolean | hardwareRequestEnabled | Enabling channel transaction via hardware request. |
| uint8 | interruptRaiseThreshold | The value of the transferCount at which the interrupt should be raised. |
| IfxDma_Dma * | module | Specifies pointer to the IfxDma_Dma module handle. |
| IfxDma_ChannelMoveSize | moveSize | Read/write data size. |
| IfxDma_ChannelOperationMode | operationMode | keep enable/disable the hardware channel request after a transaction |
| IfxDma_ChannelPattern | pattern | Pattern selection operation modes. |
| uint32 | readDataCrc | Checksum for read data of the channel. |
| IfxDma_ChannelRequestMode | requestMode | A service request initiates a single transfer, or the complete transaction. |
| IfxDma_ChannelRequestSource | requestSource | Request of channel transfer through hardware or daisy chain. channel transfer complete interrupt of previous channel will trigger the next channel request. |
| uint32 | shadowAddress | Initial content of shadow address for the DMA channel. |
| IfxDma_ChannelShadow | shadowControl | selects the shadow transfer mode |
| uint32 | sourceAddress | Source address for the DMA channel. |
| IfxDma_ChannelIncrementCircular | sourceAddressCircularRange | Determines which part of the source address remains unchanged and therby not updated after each move. |
| IfxDma_ChannelIncrementDirection | sourceAddressIncrementDirection | Decides whether the source address offset after each move should be added or decremented from the exisiting address. |
| IfxDma_ChannelIncrementStep | sourceAddressIncrementStep | Describes the address offset with which the source address should be modified after each move. |
| boolean | sourceCircularBufferEnabled | Enables/Disables the source circular buffering. |
| uint32 | sourceDestinationAddressCrc | Checksum for source and destination address of channel. |
| boolean | timestampEnabled | Enables/Disables the appendage of the time stamp after end of the last DMA move in a transaction. |
| boolean | transactionRequestLostInterruptEnabled | Enables/Disables the channel transaction request lost interrupt. |
| uint16 | transferCount | Number of transfers in a transaction. |
| boolean | wrapDestinationInterruptEnabled | An interrupt should be triggered whenever destination address is wrapped. |
| boolean | wrapSourceInterruptEnabled | An interrupt should be triggered whenever source address is wrapped. |
| struct IfxDma_Dma_Config |
Configuration data structure of the Module.
Definition at line 503 of file IfxDma_Dma.h.
| Data Fields | ||
|---|---|---|
| Ifx_DMA * | dma | Specifies the pointer to the DMA registers. |
