DMA_CfgDescr_TypeDef Struct Reference
[DMA]

#include <em_dma.h>

Collaboration diagram for DMA_CfgDescr_TypeDef:
Collaboration graph
[legend]

Data Fields

DMA_DataInc_TypeDef dstInc
DMA_DataInc_TypeDef srcInc
DMA_DataSize_TypeDef size
DMA_ArbiterConfig_TypeDef arbRate
uint8_t hprot

Detailed Description

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

Definition at line 218 of file em_dma.h.


Field Documentation

Arbitration rate, ie number of DMA transfers done before rearbitration takes place.

Definition at line 233 of file em_dma.h.

Referenced by DMA_CfgDescr().

Destination increment size for each DMA transfer

Definition at line 221 of file em_dma.h.

Referenced by DMA_CfgDescr().

HPROT signal state, please 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 244 of file em_dma.h.

Referenced by DMA_CfgDescr().

DMA transfer unit size.

Definition at line 227 of file em_dma.h.

Referenced by DMA_CfgDescr().

Source increment size for each DMA transfer

Definition at line 224 of file em_dma.h.

Referenced by DMA_CfgDescr().


The documentation for this struct was generated from the following file: