VBUS

Rp (56k ± 5%)

CC

CC

TUSB320

Legacy Host Adapter

Rd (5.1k ± 10%)

900 k

± 1%

VBUS_DET

To System VBUS detection

Copyright © 2016, Texas Instruments Incorporated

9

TUSB320, TUSB320I

www.ti.com

SLLSEN9C – MAY 2015 – REVISED SEPTEMBER 2016

Product Folder Links: TUSB320 TUSB320I

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Copyright © 2015–2016, Texas Instruments Incorporated

Overview (continued)

7.1.1.2 USB Type-C Cables

Below is a list of Type-C cables types supported by the TUSB320 device:

•

USB full-featured Type-C cable

•

USB2.0 Type-C cable with USB2.0 plug

•

Captive cable with either a USB full-featured plug or USB2.0 plug

7.1.1.3 Legacy Cables and Adapters

The TUSB320 device supports legacy cable adapters as defined by the Type-C Specification. The cable adapter

must correspond to the mode configuration of the TUSB320 device.

Figure 3. Legacy Adapter Implementation Circuit

7.1.1.4 Direct Connect Devices

The TUSB320 device supports the attaching and detaching of a direct-connect device.

7.1.1.5 Audio Adapters

Additionally, the TUSB320 device supports audio adapters for audio accessory mode, including:

•

Passive Audio Adapter

•

Charge Through Audio Adapter

7.2 Feature Description

7.2.1 Port Role Configuration

The TUSB320 device can be configured as a downstream facing port (DFP), upstream facing port (UFP), or

resistance, low to GND or left as floated on the PCB to achieve the desired mode. This flexibility allows the

TUSB320 device to be used in a variety of applications. The TUSB320 device samples the PORT pin after reset

and maintains the desired mode until the TUSB320 device is reset again. Table 1 lists the supported features in

each mode: