cy_stc_dmac_descriptor_t Struct Reference

Description

DMAC descriptor structure type.

It is a user-declared structure allocated in RAM. The DMAC 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_DMAC_Descriptor_Init()) don't work with read-only descriptors.

Data Fields
uint32_t	ctl
	0x00000000 Descriptor control
uint32_t	src
	0x00000004 Descriptor source
uint32_t	dst
	0x00000008 Descriptor destination
uint32_t	xSize
	0x0000000C Descriptor X loop size
uint32_t	xIncr
	0x00000010 Descriptor X loop increment
uint32_t	ySize
	0x00000014 Descriptor Y loop size
uint32_t	yIncr
	0x00000010 Descriptor Y loop increment
uint32_t	nextPtr
	0x00000014 Descriptor next pointer