SLLSEW2E August   2016  – January 2023 TUSB1046-DCI

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Power Supply Characteristics
    6. 6.6  DC Electrical Characteristics
    7. 6.7  AC Electrical Characteristics
    8. 6.8  Timing Requirements
    9. 6.9  Switching Characteristics
    10. 6.10 Typical Characteristics
      1.      Parameter Measurement Information
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 USB 3.1
      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 USB3.1 Modes
      6. 7.4.6 Operation Timing – Power Up
    5. 7.5 Programming
    6. 7.6 Register Maps
      1. 7.6.1 General Register (address = 0x0A) [reset = 00000001]
      2. 7.6.2 DisplayPort Control/Status Registers (address = 0x10) [reset = 00000000]
      3. 7.6.3 DisplayPort Control/Status Registers (address = 0x11) [reset = 00000000]
      4. 7.6.4 DisplayPort Control/Status Registers (address = 0x12) [reset = 00000000]
      5. 7.6.5 DisplayPort Control/Status Registers (address = 0x13) [reset = 00000000]
      6. 7.6.6 USB3.1 Control/Status Registers (address = 0x20) [reset = 00000000]
      7. 7.6.7 USB3.1 Control/Status Registers (address = 0x21) [reset = 00000000]
      8. 7.6.8 USB3.1 Control/Status Registers (address = 0x22) [reset = 00000100]
  8. 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
      3. 8.2.3 Application Curves
    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
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
      1.      Mechanical, Packaging, and Orderable Information

7.4.2 Device Configuration In I2C Mode

The TUSB1046-DCI is in I2C mode when I2C_EN is not equal to “0”. The same configurations defined in GPIO mode are also available in I2C mode. The TUSB1046-DCI USB3.1 and DisplayPort configuration is controlled based on Table 7-5. The AUXp or AUXn to SBU1 or SBU2 mapping control is based on Table 7-6.

Table 7-5 I2C Configuration Control
REGISTERSTUSB1046-DCI CONFIGURATIONVESA DisplayPort ALT MODE
DFP_D CONFIGURATION
CTLSEL1CTLSEL0FLIPSEL
000Power Down—
001Power Down—
010One Port USB 3.1 - No Flip—
011One Port USB 3.1 – With Flip—
1004 Lane DP - No FlipC and E
1014 Lane DP – With FlipC and E
110One Port USB 3.1 + 2 Lane DP- No FlipD and F
111One Port USB 3.1 + 2 Lane DP– With FlipD and F
Table 7-6 I2C AUXp or AUXn to SBU1 or SBU2 Mapping
REGISTERSMAPPING
AUX_SBU_OVR1AUX_SBU_OVR0CTLSEL1FLIPSEL
0010AUXp → SBU1
AUXn → SBU2
0011AUXp → SBU2
AUXn → SBU1
000XOpen
01XXAUXp → SBU1
AUXn → SBU2
10XXAUXp → SBU2
AUXn → SBU1
11XXOpen