GL852G View Datasheet(PDF) - Genesys Logic

Part Name

Description

Manufacturer

GL852G

USB 2.0 MTT Hub Controller

Genesys Logic 

GL852G Datasheet

5.2.8 Non-removable Port Configuration (Only Available for LQFP48/LQFN46 Package)

For compound application or embedded system, downstream ports that always connected inside the system

can be set as non-removable based on the state of corresponding status LED, pin GREEN 1~4. If the pin is

pull high in the initial stage (POR reset), the corresponding port will be set as non-removable. (Feature

Limitation: Green 1 & Green 2 pull-high concurrently will enable GL852G vendor proprietary function that

may affect system compatibility. System integrator should evade configuring both port #1 and #2 as

non-removable by this strapping feature)

5.2.9 Reference Clock Configuration (Only Available for LQFP48/LQFN46 Package)

GL852G can support optional 27/48MHz clock source, which is selectable through GPIO configurations.

For some on-board design that 27/48MHz clock source is available, such as motherboard or Monitor built-in

applications, system integrator can leverage this feature to further reduce BOM cost by removing external

crystal.

Table 5.3 - Ref. Clock Configuration

SEL48

0

1

1

SEL27

1

0

1

Clock Source

48MHz OSC-in

27MHz OSC-in

12MHz X’tal/OSC-in

©2012 Genesys Logic, Inc. - All rights reserved.

Page 27

Share Link: