DMA_CfgDescr_TypeDef Struct ReferenceEMLIB > DMA

Configuration structure for primary or alternate descriptor (not used for scatter-gather DMA cycles).

Definition at line 202 of file em_dma.h .

#include < em_dma.h >

Data Fields

DMA_ArbiterConfig_TypeDef arbRate
DMA_DataInc_TypeDef dstInc
uint8_t hprot
DMA_DataSize_TypeDef size
DMA_DataInc_TypeDef srcInc

Field Documentation

DMA_ArbiterConfig_TypeDef DMA_CfgDescr_TypeDef::arbRate

Arbitration rate, i.e., number of DMA transfers done before re-arbitration takes place.

Definition at line 216 of file em_dma.h .

Referenced by DMA_CfgDescr() .

DMA_DataInc_TypeDef DMA_CfgDescr_TypeDef::dstInc

Destination increment size for each DMA transfer.

Definition at line 204 of file em_dma.h .

Referenced by DMA_CfgDescr() .

uint8_t DMA_CfgDescr_TypeDef::hprot

HPROT signal state, refer to reference manual, DMA chapter for further details. Normally set to 0 if protection is not an issue. The following bits are available:

  • bit 0 - HPROT[1] control for source read accesses, privileged/non-privileged access.
  • bit 3 - HPROT[1] control for destination write accesses, privileged/non-privileged access.

Definition at line 227 of file em_dma.h .

Referenced by DMA_CfgDescr() .

DMA_DataSize_TypeDef DMA_CfgDescr_TypeDef::size

DMA transfer unit size.

Definition at line 210 of file em_dma.h .

Referenced by DMA_CfgDescr() .

DMA_DataInc_TypeDef DMA_CfgDescr_TypeDef::srcInc

Source increment size for each DMA transfer.

Definition at line 207 of file em_dma.h .

Referenced by DMA_CfgDescr() .


The documentation for this struct was generated from the following file:
  • C:/cygwin/home/caamunds/work/super/platform/emlib/inc/ em_dma.h