USB84604 datasheet(5/61 Pages) MICROCHIP

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 2014-2016 Microchip Technology Inc.

DS60001295C-page 5

USB84604

The Hub Feature Controller adds advanced functionality to the USB84604 by enabling the host to send commands

directly to it via the upstream USB connection. The Hub Feature Controller includes a USB peripheral/slave controller

that receives commands which are contained in the USB data packet. The following functions can be controlled via com-

mands through the Hub Feature Controller:

•I2C over USB Bridging: The host can send commands through USB to any device connected to the hub through

the SMBus.

• UART over USB Bridging: The host can send commands through USB to any device connected to the hub

through the UART. For more details about UART functions refer to the SDK.

• SPI over USB Bridging: The host accesses to an attached SPI device as a pass-through operation.

• GPIO Control: The GPIOs on the hub can be dynamically configured and controlled by the host. For more details

about GPIO functions refer to the SDK.

• OTP Programming: Permanent customer configurations can be loaded to the One Time Programmable memory.

• FlexConnect support: FlexConnect allows the hub to dynamically change the physical ports that act as upstream

and downstream ports. For more details refer to the FlexConnect Applications [ 9].

• Access to configuration registers

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