hcchar_data Union Reference

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

#include <dwc_otg_regs.h>

Data Fields
uint32_t	d32
	raw register data
struct {
unsigned   mps:11
	Maximum packet size in bytes.
unsigned   epnum:4
	Endpoint number.
unsigned   epdir:1
	0: OUT, 1: IN
unsigned   reserved:1
unsigned   lspddev:1
	0: Full/high speed device, 1: Low speed device
unsigned   eptype:2
	0: Control, 1: Isoc, 2: Bulk, 3: Intr
unsigned   multicnt:2
	Packets per frame for periodic transfers.
unsigned   devaddr:7
	Device address.
unsigned   oddfrm:1
	Frame to transmit periodic transaction.
unsigned   chdis:1
	Channel disable.
unsigned   chen:1
	Channel enable.
}	b
	register bits

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Detailed Description

This union represents the bit fields in the Host Channel Characteristics 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 2092 of file dwc_otg_regs.h.

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Field Documentation

unsigned hcchar_data::multicnt

Packets per frame for periodic transfers. 0 is reserved. Definition at line 2116 of file dwc_otg_regs.h.

unsigned hcchar_data::oddfrm

Frame to transmit periodic transaction. 0: even, 1: odd Definition at line 2125 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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