The following procedure must be followed before using any oscilloscope compliance software to construct a USB

High-speed Eye Mask:

8.2.2.1.1 For a Host Side Application

1. Configure the TUSB211A to the desired EQ setting.

2. Power on (or toggle the RSTN pin if already powered on) the TUSB211A.

3. Using SMA cables, connect the oscilloscope and the USB-IF host-side test fixture to the TUSB211A.

4. Enable the host to transmit USB TEST_PACKET.

5. Execute the oscilloscope USB compliance software.

6. Repeat the above steps to re-test TUSB211A with a different EQ setting (must reset to change).

8.2.2.1.2 For a Device Side Application

1. Configure the TUSB211A to the desired EQ setting.

2. Power on (or toggle the RSTN pin if already powered on) the TUSB211A.

3. Connect a USB host, the USB-IF device-side test fixture, and USB device to the TUSB211A. Ensure that the

USB-IF device test fixture is configured to the ‘INIT’ position.

4. Allow the host to enumerate the device.

5. Enable the device to transmit USB TEST_PACKET.

6. Using SMA cables, connect the oscilloscope to the USB-IF device-side test fixture and ensure that the

device-side test fixture is configured to the ‘TEST’ position.

7. Execute the oscilloscope USB compliance software.

8. Repeat the above steps to re-test TUSB211A with a different EQ setting (must reset to change).

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TUSB211A

SLLSFW2 – SEPTEMBER 2023

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Product Folder Links: TUSB211A