isp1521 NXP Semiconductors, isp1521 Datasheet - Page 28

• Manufacturer Part Number: isp1521
• Description: Hi-speed Universal Serial Bus Hub Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 23.
[1]
[2]
[3]
Table 24.
ISP1521_4
Product data sheet
Request
Feature
Clear Device Feature
(Remote_ Wakeup)
Clear Endpoint (1)
Feature (Halt/Stall)
Set Device Feature
(Remote_ Wakeup)
Set Endpoint (1)
Feature (Halt/Stall)
Status
Get Device Status
Get Interface Status
Get Endpoint (0) Status
Get Endpoint (1) Status
Request
Descriptor
Get Hub Descriptor
Feature
Clear Hub Feature
(C_LOCAL_POWER)
Clear Port Feature
Set Port Feature
Status
Get Hub Status
Get Port Status
TT
ClearTTBuffer
ResetTT
GetTTState
Device address: 0 to 127.
Returned value in bytes.
MSB specifies endpoint direction: 0 = OUT, 1 = IN. The ISP1521 accepts either value.
Standard USB requests
Hub class requests
11.2 Hub class requests
Table 24
bmRequestType
byte 0
(bits 7 to 0)
0000 0000
0000 0010
0000 0000
0000 0010
1000 0000
1000 0001
1000 0010
1000 0010
bmRequestType
byte 0
(bits 7 to 0)
1010 0000
0010 0000
0010 0011
0010 0011
1010 0000
1010 0011
0010 0011
0010 0000
1010 0011
shows hub class requests.
…continued
bRequest
byte 1
(hex)
01
01
03
03
00
00
00
00
bRequest
byte 1
(hex)
06
01
01
03
00
00
08
09
10
Rev. 04 — 30 March 2006
wValue
bytes 2, 3
(hex)
01, 00
00, 00
01, 00
00, 00
00, 00
00, 00
00, 00
00, 00
wValue
bytes 2, 3
(hex)
descriptor type
and index
00, 00
feature
feature
00, 00
00, 00
Dev_Addr,
EP_nr
00, 00
TT-flags
[2]
[2]
, 00
, 00
wIndex
bytes 4, 5
(hex)
00, 00
81, 00
00, 00
81, 00
00, 00
00, 00
00/80, 00
81, 00
wIndex
bytes 4, 5
(hex)
00, 00
00, 00
port
port
00, 00
port
01, 00
01, 00
01, 00
[3]
[3]
[3]
[3]
, 00
, 00
, 00
wLength
bytes 6, 7
(hex)
00, 00
00, 00
00, 00
00, 00
02, 00
02, 00
02, 00
02, 00
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Hi-Speed USB hub controller
wLength
bytes 6, 7
(hex)
length
00, 00
00, 00
00, 00
04, 00
04, 00
00, 00
00, 00
-
[4]
[1]
Data response
none
none
none
none
device status
zero
endpoint 0 status
endpoint 1 status
Data
descriptor
none
none
none
hub status and
change status
port status and
change status
none
none
TT state
ISP1521
28 of 55