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ISP1521 Datasheet(PDF) 29 Page - NXP Semiconductors

Part # ISP1521
Description  Hi-Speed Universal Serial Bus hub controller
PDF  53 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

ISP1521 Datasheet(HTML) 29 Page - NXP Semiconductors

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Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
Product data
Rev. 03 — 24 November 2004
29 of 53
9397 750 13702
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
[1]
Device address: 0 to 127.
[2]
Returned value in bytes.
[3]
MSB specifies endpoint direction: 0 = OUT, 1 = IN. The ISP1521 accepts either value.
12.2 Hub class requests
Table 24 shows the hub class requests.
Feature
Clear Device Feature
(Remote_ Wakeup)
0000 0000
01
01, 00
00, 00
00, 00
none
Clear Endpoint (1)
Feature (Halt/Stall)
0000 0010
01
00, 00
81, 00
00, 00
none
Set Device Feature
(Remote_ Wakeup)
0000 0000
03
01, 00
00, 00
00, 00
none
Set Endpoint (1)
Feature (Halt/Stall)
0000 0010
03
00, 00
81, 00
00, 00
none
Status
Get Device Status
1000 0000
00
00, 00
00, 00
02, 00
device status
Get Interface Status
1000 0001
00
00, 00
00, 00
02, 00
zero
Get Endpoint (0) Status
1000 0010
00
00, 00
00/80, 00[3]
02, 00
endpoint 0 status
Get Endpoint (1) Status
1000 0010
00
00, 00
81, 00
02, 00
endpoint 1 status
Table 23:
Standard USB requests…continued
Request
bmRequestType
byte 0
(bits 7 to 0)
bRequest
byte 1
(hex)
wValue
bytes 2, 3
(hex)
wIndex
bytes 4, 5
(hex)
wLength
bytes 6, 7
(hex)
Data response
Table 24:
Hub class requests
Request
bmRequestType
byte 0
(bits 7 to 0)
bRequest
byte 1
(hex)
wValue
bytes 2, 3
(hex)
wIndex
bytes 4, 5
(hex)
wLength
bytes 6, 7
(hex)
Data
Descriptor
Get Hub Descriptor
1010 0000
06
descriptor type
and index
00, 00
length[2]
descriptor
Feature
Clear Hub Feature
(C_LOCAL_POWER)
0010 0000
01
00, 00
00, 00
00, 00
none
Clear Port Feature
0010 0011
01
feature[3], 00
port[4], 00
00, 00
none
Set Port Feature
0010 0011
03
feature[3], 00
port[4], 00
00, 00
none
Status
Get Hub Status
1010 0000
00
00, 00
00, 00
04, 00
hub status and
change status
Get Port Status
1010 0011
00
00, 00
port[4], 00
04, 00
port status and
change status
TT
ClearTTBuffer
0010 0011
08
Dev_Addr,
EP_nr
01, 00
00, 00
none
ResetTT
0010 0000
09
00, 00
01, 00
00, 00
none



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