UM0463 datasheet(12/30 Pages) STMICROELECTRONICS

12 / 30 page

The USB state machine of the control endpoint

UM0463

12/30

CLEAR_FEATURE

A, C

Clear the device

remote wake-up

feature.

C02

Clear STALL condition

of endpoint EP. EP

does not refer to

endpoint 0.

SET_FEATURE

A, C

Set the device remote

wake-up feature.

C02

Set STALL condition of

endpoint EP. EP does

not refer to endpoint 0.

SET_ADDRESS

D, A

Set the device address,

N is the valid device

address.

GET_DESCRIPTOR

All

Non-0

Get the device

descriptor.

All

Non-0

Get the configuration

descriptor; N is the

valid configuration

index.

All

LangID

Non-0

Get the string

descriptor; N is the

valid string index. This

request is valid only

when the string

descriptor is

supported.

GET_CONFIGURATION

A, C

Get the device

configuration.

SET_CONFIGURATION

A, C

Set the device

configuration; N is the

valid configuration

number.

GET_INTERFACE

C81

Get alternate setting of

the interface N; N is the

valid interface number.

SET_INTERFACE

C01

Set alternate setting M

of the interface N; N is

the valid interface

number and M is the

valid alternate setting

of the interface N.

Table 7.

Standard requests (continued)

State

bmRequest

Type

Low

byte of

wValue

High

byte of

wValue

Low

byte of

wIndex

High

byte of

wIndex

wLength

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