gl850 ETC-unknow, gl850 Datasheet - Page 37

• Manufacturer Part Number: gl850
• Description: Usb 2.0 4-port Hub Controller
• Manufacturer: ETC-unknow

5.4.3 Hub Class Descriptor
©2000-2003 Genesys Logic Inc.—All rights reserved.
Hub Class Descriptor is replied to the host for the GET_DESCRIPTOR (HUB) command. There’s no
difference in the content for full speed and high speed.
Offset
0
1
2
4
5
6
7
8
bLength
bDescriptorType
bNbrPorts
wHubCharacteristics
bPwrOn2PwrGood
bHubContrCurrent
bDeviceRemoveable
bPortPwrCtrlMask
Field
Table 5.26 - Hub Class Descriptor
Value
FFh
09h
29h
04h
89h
80h
32h
64h
00h
9 bytes for this descriptor
Hub descriptor type
Number of ports
Individual mode
Gang mode
Time from power on to
power good (2 ms)
Maximum current (mA)
All devices are removable
For compatible to USB1.0
Description
GL850 USB 2.0 4-Port HUB Controller
Configuration
I/O
Y
-
-
-
-
-
-
-
Configuration
EEPROM
-
-
-
-
-
-
-
-
Page 37