dev_dma_desc_sts Union Reference

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

#include <dwc_otg_regs.h>

Data Fields
uint32_t	d32
	raw register data
struct {
unsigned   bytes:16
	Received number of bytes.
unsigned   reserved16_22:7
unsigned   mtrf:1
	Multiple Transfer - only for OUT EPs.
unsigned   sr:1
	Setup Packet received - only for OUT EPs.
unsigned   ioc:1
	Interrupt On Complete.
unsigned   sp:1
	Short Packet.
unsigned   l:1
	Last.
unsigned   sts:2
	Receive Status.
unsigned   bs:2
	Buffer Status.
}	b
	quadlet bits
struct {
unsigned   rxbytes:11
	Received number of bytes.
unsigned   reserved11:1
unsigned   framenum:11
	Frame Number.
unsigned   pid:2
	Received ISO Data PID.
unsigned   ioc:1
	Interrupt On Complete.
unsigned   sp:1
	Short Packet.
unsigned   l:1
	Last.
unsigned   rxsts:2
	Receive Status.
unsigned   bs:2
	Buffer Status.
}	b_iso_out
	iso out quadlet bits
struct {
unsigned   txbytes:12
	Transmited number of bytes.
unsigned   framenum:11
	Frame Number.
unsigned   pid:2
	Transmited ISO Data PID.
unsigned   ioc:1
	Interrupt On Complete.
unsigned   sp:1
	Short Packet.
unsigned   l:1
	Last.
unsigned   txsts:2
	Transmit Status.
unsigned   bs:2
	Buffer Status.
}	b_iso_in
	iso in quadlet bits

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Detailed Description

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

Read the quadlet into the d32 member then set/clear the bits using the bit, b_iso_out and b_iso_in elements.

Definition at line 1466 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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