Description

AXIDMAC descriptor structure type.

It is a user-declared structure allocated in RAM. The AXIDMAC HW requires a pointer to this structure to work with it.

For advanced users: the descriptor can be allocated even in flash, however the user have to predefine all the structure items with constants manually, because the descriptor "Set" API functions (including Cy_AXIDMAC_Descriptor_Init()) don't work with read-only descriptors.

Data Fields
uint32_t	ctl
	Descriptor control.

uint32_t	src
	Descriptor source holds the base address of source location.

uint32_t	dst
	Descriptor destination holds the base address of destination location.

uint32_t	mSize
	Descriptor memory copy size. More...

uint32_t	xSize
	Descriptor X loop size. More...

int32_t	xIncr
	Descriptor X loop increment. More...

uint32_t	ySize
	Descriptor Y loop size. More...

int32_t	yIncr
	Descriptor Y loop increment. More...

uint32_t	nextPtr
	Descriptor next pointer.

Field Documentation

◆ mSize

uint32_t cy_stc_axidmac_descriptor_t::mSize

Descriptor memory copy size.

Valid range is 0...16777216

◆ xSize

uint32_t cy_stc_axidmac_descriptor_t::xSize

Descriptor X loop size.

Valid range is 0...65535

◆ xIncr

int32_t cy_stc_axidmac_descriptor_t::xIncr

Descriptor X loop increment.

Valid range is -32768...32767

◆ ySize

uint32_t cy_stc_axidmac_descriptor_t::ySize

Descriptor Y loop size.

Valid range is 0...65535

◆ yIncr

int32_t cy_stc_axidmac_descriptor_t::yIncr

Descriptor Y loop increment.