dcd_qhd_t Struct Reference

Public Attributes
uint32_t	__pad0__: 15
	Number of packets executed per transaction descriptor 00 - Execute N transactions as demonstrated by the USB variable length protocol where N is computed using Max_packet_length and the Total_bytes field in the dTD. 01 - Execute one transaction 10 - Execute two transactions 11 - Execute three transactions Remark: Non-isochronous endpoints must set MULT = 00. Remark: Isochronous endpoints must set MULT = 01, 10, or 11 as needed. More...
uint32_t	int_on_setup: 1
	Interrupt on setup This bit is used on control type endpoints to indicate if USBINT is set in response to a setup being received. More...
uint32_t	max_packet_size: 11
	Endpoint's wMaxPacketSize. More...
uint32_t	__pad1__: 2
uint32_t	zero_length_termination: 1
	This bit is used for non-isochronous endpoints to indicate when a zero-length packet is received to terminate transfers in case the total transfer length is “multiple”. 0 - Enable zero-length packet to terminate transfers equal to a multiple of Max_packet_length (default). 1 - Disable zero-length packet on transfers that are equal in length to a multiple Max_packet_length. More...
uint32_t	iso_mult: 2
volatile uint32_t	qtd_addr
volatile dcd_qtd_t	qtd_overlay
volatile tusb_control_request_t	setup_request
tu_fifo_t *	ff
uint8_t	reserved [12]

Detailed Description

Definition at line 135 of file dcd_ci_hs.c.

Member Data Documentation

__pad0__

uint32_t dcd_qhd_t::__pad0__

Number of packets executed per transaction descriptor 00 - Execute N transactions as demonstrated by the USB variable length protocol where N is computed using Max_packet_length and the Total_bytes field in the dTD. 01 - Execute one transaction 10 - Execute two transactions 11 - Execute three transactions Remark: Non-isochronous endpoints must set MULT = 00. Remark: Isochronous endpoints must set MULT = 01, 10, or 11 as needed.

Definition at line 138 of file dcd_ci_hs.c.

__pad1__

uint32_t dcd_qhd_t::__pad1__

Definition at line 141 of file dcd_ci_hs.c.

ff

tu_fifo_t* dcd_qhd_t::ff

Definition at line 158 of file dcd_ci_hs.c.

int_on_setup

uint32_t dcd_qhd_t::int_on_setup

Interrupt on setup This bit is used on control type endpoints to indicate if USBINT is set in response to a setup being received.

Definition at line 139 of file dcd_ci_hs.c.

iso_mult

uint32_t dcd_qhd_t::iso_mult

Definition at line 143 of file dcd_ci_hs.c.

max_packet_size

uint32_t dcd_qhd_t::max_packet_size

Endpoint's wMaxPacketSize.

Definition at line 140 of file dcd_ci_hs.c.

qtd_addr

volatile uint32_t dcd_qhd_t::qtd_addr

Definition at line 146 of file dcd_ci_hs.c.

qtd_overlay

volatile dcd_qtd_t dcd_qhd_t::qtd_overlay

Definition at line 149 of file dcd_ci_hs.c.

reserved

uint8_t dcd_qhd_t::reserved[12]

Definition at line 159 of file dcd_ci_hs.c.

setup_request

volatile tusb_control_request_t dcd_qhd_t::setup_request

Definition at line 152 of file dcd_ci_hs.c.

zero_length_termination

uint32_t dcd_qhd_t::zero_length_termination

This bit is used for non-isochronous endpoints to indicate when a zero-length packet is received to terminate transfers in case the total transfer length is “multiple”. 0 - Enable zero-length packet to terminate transfers equal to a multiple of Max_packet_length (default). 1 - Disable zero-length packet on transfers that are equal in length to a multiple Max_packet_length.

Definition at line 142 of file dcd_ci_hs.c.

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

• dcd_ci_hs.c