SLLSFO9A May   2024  – September 2024 TUSB564-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements
    7. 5.7 Switching Characteristics
    8. 5.8 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 USB 3.2
      2. 7.3.2 DisplayPort
      3. 7.3.3 4-Level Inputs
      4. 7.3.4 Receiver Linear Equalization
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Configuration in GPIO Mode
      2. 7.4.2 Device Configuration In I2C Mode
      3. 7.4.3 DisplayPort Mode
      4. 7.4.4 Linear EQ Configuration
      5. 7.4.5 USB3 Modes
      6. 7.4.6 Operation Timing – Power Up
    5. 7.5 Programming
      1. 7.5.1 TUSB564-Q1 I2C Target Behavior
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 ESD Protection
        2. 8.2.2.2 Support for DisplayPort UFP_D Pin Assignment E
      3. 8.2.3 Application Curve
    3. 8.3 System Examples
      1. 8.3.1 USB 3.1 Only
      2. 8.3.2 USB 3.1 and 2 Lanes of DisplayPort
      3. 8.3.3 DisplayPort Only
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Register Maps
    1. 9.1 General Register (address = 0x0A) [reset = 00000001]
    2. 9.2 DisplayPort Control/Status Registers (address = 0x10) [reset = 00000000]
    3. 9.3 DisplayPort Control/Status Registers (address = 0x11) [reset = 00000000]
    4. 9.4 DisplayPort Control/Status Registers (address = 0x12) [reset = 00000000]
    5. 9.5 DisplayPort Control/Status Registers (address = 0x13) [reset = 00000000]
    6. 9.6 USB3.1 Control/Status Registers (address = 0x20) [reset = 00000000]
    7. 9.7 USB3.1 Control/Status Registers (address = 0x21) [reset = 00000000]
    8. 9.8 USB3.1 Control/Status Registers (address = 0x22) [reset = 00000000]
  11. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

7.4.5 USB3 Modes

The TUSB564-Q1 monitors the physical layer conditions like receiver termination, electrical idle, LFPS, and SuperSpeed signaling rate to determine the state of the USB3.1 interface. Depending on the state of the USB 3.2 interface, the TUSB564-Q1 can be in one of four primary modes of operation when USB 3.2 is enabled (CTL0 = H or CTLSEL0 = 1b1): Disconnect, U2/U3, U1, and U0.

The Disconnect mode is the state in which TUSB564-Q1 has not detected far-end termination on upstream facing port (UFP) or downstream facing port (DFP). The disconnect mode is the lowest power mode of each of the four modes. The TUSB564-Q1 remains in this mode until far-end receiver termination has been detected on both UFP and DFP. The TUSB564-Q1 immediately exits this mode and enters U0 after far-end termination is detected.

When in U0 mode, the TUSB564-Q1 redrives all traffic received on UFP and DFP. U0 is the highest power mode of all USB3.1 modes. The TUSB564-Q1 remains in U0 mode until electrical idle occurs on both UFP and DFP. Upon detecting electrical idle, the TUSB564-Q1 immediately transitions to U1.

The U1 mode is the intermediate mode between U0 mode and U2/U3 mode. In U1 mode, the TUSB564-Q1 UFP and DFP receiver termination remains enabled. The UFP and DFP transmitter DC common mode is maintained. The power consumption in U1 is similar to power consumption of U0.

Next to the disconnect mode, the U2/U3 mode is next lowest power state. While in this mode, the TUSB564-Q1 periodically performs far-end receiver detection. Anytime the far-end receiver termination is not detected on either UFP or DFP, the TUSB564-Q1 leaves the U2/U3 mode and transitions to the Disconnect mode. The device also monitors for a valid LFPS. Upon detection of a valid LFPS, the TUSB564-Q1 immediately transitions to the U0 mode. In U2/U3 mode, the TUSB564-Q1 receiver terminations remain enabled but the TX DC common mode voltage is not maintained.