host_dma_desc_sts Union Reference

This union represents the bit fields in the DMA Descriptor status quadlet for host mode. More...

#include <dwc_otg_regs.h>

Data Fields
uint32_t	d32
	raw register data
struct {
unsigned   n_bytes:17
	Number of bytes.
unsigned   qtd_offset:6
	QTD offset to jump when Short Packet received - only for IN EPs.
unsigned   a_qtd:1
	Set to request the core to jump to alternate QTD if Short Packet received - only for IN EPs.
unsigned   sup:1
	Setup Packet bit.
unsigned   ioc:1
	Interrupt On Complete.
unsigned   eol:1
	End of List.
unsigned   reserved27:1
unsigned   sts:2
	Rx/Tx Status.
unsigned   reserved30:1
unsigned   a:1
	Active Bit.
}	b
	quadlet bits
struct {
unsigned   n_bytes:12
	Number of bytes.
unsigned   reserved12_24:13
unsigned   ioc:1
	Interrupt On Complete.
unsigned   reserved26_27:2
unsigned   sts:2
	Rx/Tx Status.
unsigned   reserved30:1
unsigned   a:1
	Active Bit.
}	b_isoc

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Detailed Description

This union represents the bit fields in the DMA Descriptor status quadlet for host mode.

Read the quadlet into the d32 member then set/clear the bits using the bit elements.

Definition at line 2325 of file dwc_otg_regs.h.

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Field Documentation

unsigned host_dma_desc_sts::sup

Setup Packet bit. When set indicates that buffer contains setup packet. Definition at line 2345 of file dwc_otg_regs.h.

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

• dwc_otg_regs.h

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