Philips Universal Serial Bus ISP1122 Specification Sheet page 14

Philips Semiconductors
Table 8: Hub specific requests
Request name
Status
Get Hub Status
Get Port Status
Unsupported
Get Bus Status
Clear Hub Feature
(C_OVER_CURRENT)
Set Hub Descriptor
Set Hub Feature
(C_LOCAL_POWER)
Set Hub Feature
(C_OVER_CURRENT)
USB Specification Rev. 1.0 uses 00H, USB Specification Rev. 1.1 specifies 29H.
[1]
[2] Returned value in bytes.
[3] Feature selector value, see
[4] Downstream port identifier: 1 to N with N = number of enabled ports (2 to 5).
9397 750 07002
Product specification
...continued
bmRequestType bRequest
byte 0 [7:0] byte 1
(Bin) (Hex)
1010 0000 00
1010 0011 00
1010 0011 02
X010 0000 01
0010 0000 07
X010 0000 03
X010 0000 03
Table 9.
Table 9: Port feature selectors
Feature selector name
PORT_CONNECTION
PORT_ENABLE
PORT_SUSPEND
PORT_OVERCURRENT
PORT_RESET
PORT_POWER
PORT_LOW_SPEED
C_PORT_CONNECTION
C_PORT_ENABLE
C_PORT_SUSPEND
C_PORT_OVERCURRENT
C_PORT_RESET
Rev. 03 — 29 March 2000
wValue wIndex
byte 2, 3 byte 4, 5
(Hex) (Hex)
00, 00 00, 00
[4]
00, 00 port , 00
[4]
00, 00 port , 00
01, 00 00, 00
XX, XX 00, 00
00, 00 00, 00
01, 00 00, 00
Value (Hex) Set feature
00 not used
01 not used
02 suspends a port
03 not used
04 resets and enables a
port
08 powers on a port
09 not used
10 not used
11 not used
12 not used
13 not used
14 not used
ISP1122
USB stand-alone hub
wLength Data
byte 6, 7
(Hex)
04, 00 hub status and
status change
field
04, 00 port status
01, 00 STALL
00, 00 STALL
3E, 00 STALL
00, 00 STALL
00, 00 STALL
Clear feature
not used
disables a port
resumes a port
not used
not used
powers off a port
not used
clears port connection
change bit
clears port enable
change bit
clears port suspend
change bit
clears port overcurrent
change bit
clears port reset
change bit
© Philips Electronics N.V. 2000. All rights reserved.
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