USB4715 datasheet(26/47 Pages) MICROCHIP

26 / 47 page

USB4715

DS00002514B-page 26

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2022 Microchip Technology Inc. and its subsidiaries

Feature Controller device.

•

Direct Pin Control: Any available GPIO pin on the hub can be assigned the role of a FlexConnect control pin.

For detailed information on utilizing the USB4715 FlexConnect feature, refer to the application note “AN2341 - USB4715

FlexConnect Operation”, which can be found on the Microchip USB4715 product page at www.microchip.com/

USB4715.

8.3

USB to GPIO Bridging

The USB to GPIO bridging feature of the USB4715 provides system designers expanded system control and potential

BOM reduction. General Purpose Input/Outputs (GPIOs) may be used for any general 3.3V level digital control and input

functions.

Commands may be sent from the USB Host to the internal Hub Feature Controller device in the Microchip hub to per-

form the following functions:

• Set the direction of the GPIO (input or output)

• Enable a pull-up resistor

• Enable a pull-down resistor

• Read the state

• Set the state

For detailed information on utilizing the USB4715 USB to GPIO bridging feature, refer to the application note “AN2437

- USB to GPIO Bridging with Microchip USB4715 and USB49xx Hubs”, which can be found on the Microchip USB4715

product page at www.microchip.com/USB4715.

8.4

USB to SMBus/I2C Bridging

The USB to SMBus/I2C bridging feature of the USB4715 provides system designers expanded system control and

potential BOM reduction. The use of a separate USB to SMBus/I2C device is no longer required and a downstream USB

port is not lost, as occurs when a standalone USB to SMBus/I2C device is implemented.

Commands may be sent from the USB Host to the internal Hub Feature Controller device in the Microchip hub to per-

form the following functions:

• Configure SMBus/I2C Pass-Through Interface

• SMBus/I2C Write

• SMBus/I2C Read

For detailed information on utilizing the USB4715 USB to SMBus/I2C bridging feature, refer to the application note

“AN2438 - USB to I2C Bridging with Microchip USB4715 and USB49xx Hubs”, which can be found on the Microchip

USB4715 product page at www.microchip.com/USB4715.

8.5

USB to SPI Bridging

The USB to SPI bridging feature of the USB4715 provides system designers expanded system control and potential

BOM reduction. The use of a separate USB to SPI device is no longer required and a downstream USB port is not lost,

as occurs when a standalone USB to SPI device is implemented.

Commands may be sent from the USB Host to the internal Hub Feature Controller device in the Microchip hub to per-

form the following functions:

• Enable SPI Pass-Through Interface

• SPI Write/Read

• Disable SPI Pass-Through Interface

For detailed information on utilizing the USB4715 USB to SPI bridging feature, refer to the application note “AN2430 -

USB to SPI Bridging with Microchip USB4715 and USB49xx Hubs”, which can be found on the Microchip USB4715

product page at www.microchip.com/USB4715.

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