SNLU354 November   2024

 

  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. 4.2 Related Documentation

2.1 Getting Started

Evaluation of the TUSB2E221QFNEVM requires a 5V power source, a USB connection, and an eUSB2 connection. This section assumes that the TUSB2E221QFNEVM jumpers are in placed in the default state as described in Table 2-1.

Table 2-1 TUSB2E221QFNEVM Default Jumper Configuration
DesignatorDefault PositionDescription
J31-2VBUS to J4 USB Port A connector
J21-25V Rail and DC Jack to VBUS
J19N/AI2C interface
J101-2VBUS to J4 USB Port B connector
J52-3EQ1 low
J112-3EQ0 low
J131-21.8V supply rail to 1.8V IO rail
J161-21.8V LDO output to 1.8V supply rail
J151-23.3V supply rail to 1.8V LDO
J12Not installedEQ2 floating
J171-2I2C SDA pullup resistor
J181-2I2C SCL pullup resistor
SW12-3Set in 2-3 position

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 TUSB2E221QFNEVM 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 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 TUSB2E221QFNEVM also incorporates an external reset push button in addition to a regular power reset circuit.