GL850A USB 2.0 Low-Power HUB Controller
1: Power Self
0: Power Bus
PSELF
Inside GL850A
On PCB
Figure 5.7 – SELF/BUS Power Setting
5.2.4 LED Connections
GL850A controls the LED lighting according to the flow defined in section 11.5.3 of Universal Serial Bus
Specification Revision2.0. Both manual mode and Automatic mode are supported in GL850A. When
GL850A is globally suspended, GL850A will turn off the LED to save power.
AMBER/GREEN
LED
DGND
Inside GL850A
On PCB
Figure 5.8 – LED Connection
5.2.5 EEPROM Setting
GL850A replies to host commands by the default settings in the internal ROM. GL850A also offers the
ability to reply to the host according to the settings in the external EEPROM(93C46). The following table
shows the configuration of 93C46.
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