hctsiz_data Union Reference

This union represents the bit fields in the Host Channel Transfer Size Register. More...

#include <dwc_otg_regs.h>

Data Fields
uint32_t	d32
	raw register data
struct {
unsigned   xfersize:19
	Total transfer size in bytes.
unsigned   pktcnt:10
	Data packets to transfer.
unsigned   pid:2
	Packet ID for next data packet 0: DATA0 1: DATA2 2: DATA1 3: MDATA (non-Control), SETUP (Control).
unsigned   dopng:1
	Do PING protocol when 1.
}	b
	register bits
struct {
unsigned   schinfo:8
	Scheduling information.
unsigned   ntd:8
	Number of transfer descriptors.
unsigned   reserved16_28:13
	Data packets to transfer.
unsigned   pid:2
	Packet ID for next data packet 0: DATA0 1: DATA2 2: DATA1 3: MDATA (non-Control).
unsigned   dopng:1
	Do PING protocol when 1.
}	b_ddma
	register bits

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Detailed Description

This union represents the bit fields in the Host Channel Transfer Size Register.

Read the register into the d32 member then set/clear the bits using the bit elements. Write the d32 member to the hcchar register.

Definition at line 2244 of file dwc_otg_regs.h.

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Field Documentation

unsigned hctsiz_data::ntd

Number of transfer descriptors. Max value: 64 in general, 256 only for HS isochronous endpoint. Definition at line 2284 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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