USB5734 datasheet(32/61 Pages) MICROCHIP

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USB5734

DS00001854D-page 32

 2015-2016 Microchip Technology Inc.

6.0

DEVICE CONFIGURATION

The device supports a large number of features (some mutually exclusive), and must be configured in order to correctly

function when attached to a USB host controller. The hub can be configured either internally or externally depending on

the implemented interface.

Microchip provides a comprehensive software programming tool, Pro-Touch, for configuring the USB5734 functions,

registers and OTP memory. All configuration is to be performed via the Pro-Touch programming tool. For additional infor-

mation on the Pro-Touch programming tool, refer to the Software Libraries within the Microchip USB5734 product page

at www.microchip.com/USB5734.

6.1

Customer Accessible Functions

The following USB or SMBus accessible functions are available to the customer via the Pro-Touch Programming Tool.

6.1.1

USB ACCESSIBLE FUNCTIONS

6.1.1.1

I2C Bridging Access over USB

Access to I2C devices is performed as a pass-through operation from the USB Host. The device firmware has no knowl-

edge of the operation of the attached I2C device. For more information, refer to the Microchip USB5734 product page

and SDK at www.microchip.com/USB5734.

6.1.1.2

SPI Access over USB

Access to an attached SPI device is performed as a pass-through operation from the USB Host. The device firmware

has no knowledge of the operation of the attached SPI device. For more information, refer to the Microchip USB5734

product page and SDK at www.microchip.com/USB5734.

6.1.1.3

UART Access over USB

Access to UART devices is performed as a pass-through operation from the USB Host. The device firmware has no

knowledge of the operation of the attached UART device. For more information, refer to the Microchip USB5734 product

page and SDK at www.microchip.com/USB5734.

6.1.1.4

OTP Access over USB

The OTP ROM in the device is accessible via the USB bus. All OTP parameters can be modified to the USB Host. The

OTP operates in Single Ended mode. For more information, refer to the Microchip USB5734 product page and SDK at

www.microchip.com/USB5734.

6.1.1.5

Battery Charging Access over USB

The Battery charging behavior of the device can be dynamically changed by the USB Host when something other than

the preprogrammed or OTP programmed behavior is desired. For more information, refer to the Microchip USB5734

product page and SDK at www.microchip.com/USB5734.

Note:

Device configuration straps and programmable pins are detailed in Section 3.4, "Configuration Straps and

Programmable Functions," on page 17.

Refer to Section 7.0, "Device Interfaces" for detailed information on each device interface.

Note:

For additional programming details, refer to the Pro-Touch programming tool.

Note:

Refer to Section 7.3, "I2C Bridge Interface," on page 34 for additional information on the I2C interface.

Note:

Refer to Section 7.1, "SPI Master Interface," on page 34 for additional information on the SPI.

Note:

Refer to Section 7.4, "Two Pin Serial Port (UART) Interface," on page 35 for additional information on the

UART interface.

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