SLLSF47D February   2018  – April 2024 TUSB1044

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 Switching Characteristics
    7. 5.7 Timing Requirements
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 USB 3.1
      2. 6.3.2 DisplayPort
      3. 6.3.3 4-Level Inputs
      4. 6.3.4 Receiver Linear Equalization
    4. 6.4 Device Functional Modes
      1. 6.4.1 Device Configuration in GPIO mode
      2. 6.4.2 Device Configuration in I2C Mode
      3. 6.4.3 DisplayPort Mode
      4. 6.4.4 Custom Alternate Mode
      5. 6.4.5 Linear EQ Configuration
      6. 6.4.6 Adjustable VOD Linear Range and DC Gain
      7. 6.4.7 USB3.1 Modes
    5. 6.5 Programming
      1. 6.5.1 Use The Following Procedure to Write to TUSB1044 I2C Registers:
      2. 6.5.2 Use The Following Procedure to Read the TUSB1044 I2C Registers:
      3. 6.5.3 Use The Following Procedure for Setting a Starting Sub-Address for I2C Reads:
    6. 6.6 Register Maps
      1. 6.6.1 TUSB1044 Registers
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curve
    3. 7.3 System Examples
      1. 7.3.1 USB 3.1 only (USB/DP Alternate Mode)
      2. 7.3.2 USB3.1 and 2 lanes of DisplayPort
      3. 7.3.3 DisplayPort Only
      4. 7.3.4 USB 3.1 only (USB/Custom Alternate Mode)
      5. 7.3.5 USB3.1 and 1 Lane of Custom Alt Mode
      6. 7.3.6 USB3.1 and 2 Lane of Custom Alt Mode
      7. 7.3.7 USB3.1 and 4 Lane of Custom Alt Mode
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

6.4.2 Device Configuration in I2C Mode

The TUSB1044 is in I2C mode when I2C_EN is equal to “1”. The same configurations defined in GPIO mode are also available in I2C mode. The TUSB1044 USB3.1, DisplayPort, and custom Alternate Mode configuration is controlled based on Table 6-5. The AUXP/N to SBU1/2 mapping control is based on Table 6-5.

Table 6-5 I2C Configuration Control
RegistersTUSB1044 ConfigurationVESA DisplayPort Alt Mode
DFP_D Configuration
DIRSEL1DIRSEL0CTLSEL1CTLSEL0FLIPSEL
USB + DisplayPort Alternate Mode (Source Side)
LLLLLPower Down–
LLLLHPower Down–
LLLHLOne Port USB 3.1 - No Flip–
LLLHHOne Port USB 3.1 – With Flip–
LLHLL4 Lane DP - No FlipC and E
LLHLH4 Lane DP – With FlipC and E
LLHHLOne Port USB 3.1 + 2 Lane DP- No FlipD and F
LLHHHOne Port USB 3.1 + 2 Lane DP– With FlipD and F
USB + DisplayPort Alternate Mode (Sink Side)
LHLLLPower Down–
LHLLHPower Down–
LHLHLOne Port USB 3.1 - No Flip–
LHLHHOne Port USB 3.1 – With Flip–
LHHLL4 Lane DP - No FlipC and E
LHHLH4 Lane DP – With FlipC and E
LHHHLOne Port USB 3.1 + 2 Lane DP- No FlipD and F
LHHHHOne Port USB 3.1 + 2 Lane DP– With FlipD and F
USB + Custom Alternate Mode (Source Side)
HLLLLPower Down–
HLLLHPower Down–
HLLHLOne Port USB 3.1 - No Flip–
HLLHHOne Port USB 3.1 – With Flip–
HLHLL4 Channel Custom Alt Mode - No Flip–
HLHLH4 Channel Custom Alt Mode– With Flip–
HLHHLOne Port USB 3.1 + 2 Channel Custom Alt Mode- No Flip–
HLHHHOne Port USB 3.1 + 2 Channel Custom Alt Mode – With Flip–
USB + Custom Alternate Mode (Sink Side)
HHLLLPower Down–
HHLLHPower Down–
HHLHLOne Port USB 3.1 - No Flip–
HHLHHOne Port USB 3.1 – With Flip–
HHHLL4 Channel Custom Alt Mode - No Flip–
HHHLH4 Channel Custom Alt Mode– With Flip–
HHHHLOne Port USB 3.1 + 2 Channel Custom Alt Mode- No Flip–
HHHHHOne Port USB 3.1 + 2 Channel Custom Alt Mode – With Flip–
Table 6-6 I2C AUXP/N to SBU1/2 Mapping
Registers
AUX_SBU_OVRCTLSEL1FLIPSELMapping
00HLAUXp -> SBU1
AUXn -> SBU2
00HHAUXp -> SBU2
AUXn -> SBU1
00LXOpen
01XXAUXp -> SBU1
AUXn -> SBU2
10XXAUXp -> SBU2
AUXn -> SBU1
11XXOpen