gl850g Genesys Logic, gl850g Datasheet - Page 20

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gl850g

Manufacturer Part Number
gl850g
Description
Gl850g Usb 2.0 Low-power Hub Controller
Manufacturer
Genesys Logic
Datasheet

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©2000-2008 Genesys Logic Inc. - All rights reserved.
GL850G can operate under bus power and conform to the power consumption limitation completely
(suspend current < 2.5 mA, normal operation current < 100 mA). By setting PSELF, GL850G can be
configured as a bus-power or a self-power hub.
5.2.3 SELF/BUS Power Setting
"0": Individual Mode
"1": GANG Mode
GANG_CTL
RESET#
SUSPNDO
GANG_CTL
Inside GL850G
Input mode, strapping
to decide individual or
gang mode
Figure 5.5 – Timing of PGANG/SUSPEND strapping
Figure 5.6 – Individual/GANG Mode Setting
PGANG
On PCB
50 ms
GL850G USB 2.0 Low-Power HUB Controller
DVDD(3.3V)
100K ohm
100K ohm
Output mode, Indicating
GL850G Is In normal
mode or suspend mode
DVDD(3.3V)
Suspend LED
Indicator
Suspend LED
Indicator
GANG Mode
Individual
Mode
Page 20

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