Texas Instruments manual TUSB3210 Setup, Interfaces and USB Port, Power Supplies, Led

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Running Title—Attribute Reference

2.1 TUSB3210 Setup

The TUSB3210 EVM supports many USB applications. The jumpers allow the flexibility to configure the EVM in various modes for evaluation purposes. Note that some modes require additional components not included with the EVM kit. The EVM comes in a default configuration that requires no additional components on the EVM. A full description of the TUSB3210 device is specified in the data manual (SLLS466). The PC must be running a USB-capable operating system.

If necessary, configure the EVM based on the desired settings specified later in this section. Use a standard USB cable to connect the TUSB3210 EVM to a downstream port on the PC or to a USB HUB tier.

2.2 Interfaces and USB Port

The EVM uses a standard type-B connector for the upstream port. An I2C serial interface is provided to access an I2C EEPROM. A UART port is embedded in the microcontroller and is connected to the RS-232 port on the EVM. The RS-232 port connection can be broken using the jumpers. See jumper settings for more details. All GPIO signals are available on the 50-pin connector JP1 for use by the specific application.

2.3 Power Supplies

The TUSB3210 EVM requires a single positive 5-V power supply for operation. Two options are available for supplying power to the EVM:

-Self-powered mode: a switching 5-V dc power supply plugged into (J1)

-Bus-powered mode: 5-V power is supplied by the USB cable.

Note that the supply needs to have a rating of at least 0.5 A. The EVM may fail to operate properly with less power. An onboard low-dropout regulator is used to generate a 3.3-V supply from the 5-V external supply. The red LED (D4) is on when the platform is powered. See also the Jumpers and Switches section.

2.4 Light Emitting Diodes (LEDs)

Table 2−1. LED Description

LED

LED Description

 

 

D4

Red LED on indicates that the EVM is powered on and not suspended.

 

Red LED off indicates that the EVM is powered off or suspended.

 

 

2-2

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Contents User’s Guide Important Notice Products ApplicationsEVM Important Notice EVM Warnings and Restrictions Read This First About This ManualTrademarks Contents TablesViii Hardware and Software Required TopicEquipment Hardware Overview−2. TUSB3210 Evaluation Board −4. TUSB3210 Printed-Circuit Board REV 1.1-Top Side −5. TUSB3210 Printed-Circuit Board REV 1.2-Top Side Bill of Materials Quantity Reference PartSchematic Diagram Page Gpio Connector EVM OperationEeprom Interfaces and USB Port TUSB3210 SetupPower Supplies Light Emitting Diodes LEDsJumpers and Switches Gpio ConnectorJumper/Switch Jumper/Switch Description −1. Gpio Connector NPN NPN