SNLU346 May   2024 TUSB2E221

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Getting Started
    2. 2.2 EVM Configuration
      1. 2.2.1 Power Modes
        1. 2.2.1.1 Self-Powered Configuration
        2. 2.2.1.2 Bus-powered Configuration
        3. 2.2.1.3 External Power
      2. 2.2.2 Functional Modes
        1. 2.2.2.1 I2C-Enabled Repeater Mode
        2. 2.2.2.2 GPIO Repeater Mode
        3. 2.2.2.3 UART Mode
      3. 2.2.3 I/O and Interrupts
  8. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 Board Layout
    3. 3.3 Bill of Materials
  9. 4Additional Information
    1. 4.1 Trademarks

2.1 Getting Started

Evaluation of the TUSB2E221EVM requires a 5V power source, a USB connection, and an eUSB2 connection. This section assumes that the TUSB2E221EVM jumpers are in placed in the default state as described in Table 3-1.

Table 2-1 TUSB2E221EVM Default Jumper Configuration
Designator Default Position Description
J1 1-2 VBUS to J5 micro-USB Port A connector
J3 1-2 5V Rail and DC Jack to VBUS
J4 N/A I2C interface
J6 N/A VBUS to J10 micro-USB Port B connector
J7 2-3 EQ1 low
J12 2-3 EQ0 low
J14 1-2 5V input to 3.3V LDO
J15 1-2 1.8V supply rail to 1.8V IO rail
J16 1-2 1.8V LDO output to 1.8V supply rail
J17 1-2 3.3V supply rail to 1.8V LDO
J18 N/A EQ2 floating
J19 1-2 I2C SDA pullup resistor
J20 1-2 I2C SCL pullup resistor
SW1 2-1 (Left) Set in 2-1 position (left)
SW3 2-3 (Top) Set in 2-3 position (top)

The following test procedure describes how to integrate the EVM into a eUSB system and begin evaluation. Before getting started, make sure that power is not supplied to the system and proper ESD protective measures are in place.

  1. Connect to eUSB Port 0- The TUSB2E221EVM has two eUSB ports to connect to an eUSB host or device via SMP cable. The eUSB host or device is responsible for configuring TUSB2E221 through the eUSB interface as described in Section 1.3.
  2. Connect to USB Port A - The two micro-AB USB ports on the EVM connect to a USB host or device. If the TUSB2E221 was configured as a device repeater in step 1, then attach a USB host to USB Port A. If configured as a host, then attach a USB device.
  3. Provide 5V power to the EVM - There are multiple ways to provide 5V to the EVM. For more information on the various power modes refer to section Section 2.2.1.
  4. Power on the system, or issue a reset - After power-on, the eUSB host or device automatically configures the repeater and establish a connection through the eUSB and USB interfaces. The TUSB2E221EVM also incorporates an external reset push button in addition to a regular power reset circuit.