ISP1521 datasheet(33/53 Pages) PHILIPS

33 / 53 page

Philips Semiconductors

ISP1521

Hi-Speed USB hub controller

Product data

Rev. 03 — 24 November 2004

33 of 53

9397 750 13702

12.4 Various get descriptors

bmRequestType — 10000000B

bmRequest — GET_DESCRIPTOR = 6

suspend change

no change

resume complete

overcurrent indicator change

no change in the overcurrent indicator

change in the overcurrent indicator

reset change

no change

reset complete

5 to 15

reserved

Table 32:

Get port status change response (wPortChange)…continued

Bit

Function

Value

Description

Table 33:

Get descriptor request

Request name

wValue

wIndex

Data

Descriptor index

Descriptor type

Zero/Language ID

Get device

descriptor

device descriptor

Get conﬁguration

descriptor

conﬁguration interface and

endpoint descriptors

Get language ID

string descriptor

language ID support string

Get manufacturer

string descriptor

manufacturer string in LANGID n

Get product string

descriptor

product string in LANGID n

Get serial number

string descriptor

serial number string in LANGID n

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