SLLSEI0D July   2015  – January 2022 TUSB4020BI

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings (1)
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 3.3-V I/O Electrical Characteristics
    6. 7.6 Hub Input Supply Current
    7. 7.7 Power-Up Timing Requirements
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Battery Charging Features
      2. 8.3.2 USB Power Management
      3. 8.3.3 Clock Generation
      4. 8.3.4 Power-Up and Reset
    4. 8.4 Device Functional Modes
      1. 8.4.1 External Configuration Interface
    5. 8.5 Programming
      1. 8.5.1 One-Time Programmable (OTP) Configuration
      2. 8.5.2 I2C EEPROM Operation
      3. 8.5.3 SMBus Slave Operation
    6. 8.6 Register Maps
      1. 8.6.1 Configuration Registers
        1. 8.6.1.1  ROM Signature Register (offset = 0h) [reset = 0h]
        2. 8.6.1.2  Vendor ID LSB Register (offset = 1h) [reset = 51h]
        3. 8.6.1.3  Vendor ID MSB Register (offset = 2h) [reset = 4h]
        4. 8.6.1.4  Product ID LSB Register (offset = 3h) [reset = 25h]
        5. 8.6.1.5  Product ID MSB Register (offset = 4h) [reset = 80h]
        6. 8.6.1.6  Device Configuration Register (offset = 5h) [reset = 1Xh]
        7. 8.6.1.7  Battery Charging Support Register (offset = 6h) [reset = 0Xh]
        8. 8.6.1.8  Device Removable Configuration Register (offset = 7h) [reset = 0Xh]
        9. 8.6.1.9  Port Used Configuration Register (offset = 8h) [reset = 0h]
        10. 8.6.1.10 PHY Custom Configuration Register (offset = 9h) [reset = 0h]
        11. 8.6.1.11 Device Configuration Register 2 (offset = Ah)
        12. 8.6.1.12 UUID Registers (offset = 10h to 1Fh)
        13. 8.6.1.13 Language ID LSB Register (offset = 20h)
        14. 8.6.1.14 Language ID MSB Register (offset = 21h)
        15. 8.6.1.15 Serial Number String Length Register (offset = 22h)
        16. 8.6.1.16 Manufacturer String Length Register (offset = 23h)
        17. 8.6.1.17 Product String Length Register (offset = 24h)
        18. 8.6.1.18 Serial Number Registers (offset = 30h to 4Fh)
        19. 8.6.1.19 Manufacturer String Registers (offset = 50h to 8Fh)
        20. 8.6.1.20 Product String Registers (offset = 90h to CFh)
        21. 8.6.1.21 Additional Feature Configuration Register (offset = F0h)
        22. 8.6.1.22 Charging Port Control Register (offset = F2h)
        23. 8.6.1.23 Device Status and Command Register (offset = F8h)
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Crystal Requirements
      2. 9.1.2 Input Clock Requirements
    2. 9.2 Typical Applications
      1. 9.2.1 Upstream Port Implementation
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Downstream Port 1 Implementation
      3. 9.2.3 Downstream Port 2 Implementation
      4. 9.2.4 VBUS Power Switch Implementation
      5. 9.2.5 Clock, Reset, and Miscellaneous
      6. 9.2.6 Power Implementation
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply
    2. 10.2 Downstream Port Power
    3. 10.3 Ground
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Placement
      2. 11.1.2 Package Specific
      3. 11.1.3 Differential Pairs
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.6.1 Configuration Registers

The internal configuration registers are accessed on byte boundaries. The configuration register values are loaded with defaults but can be overwritten when the TUSB4020BI is in I2C or SMBus mode.

Table 8-3 TUSB4020BI Register Map
BYTE ADDRESSCONTENTSEEPROM CONFIGURABLE
00hROM Signature RegisterNo
01hVendor ID LSBYes
02hVendor ID MSBYes
03hProduct ID LSBYes
04hProduct ID MSBYes
05hDevice Configuration RegisterYes
06hBattery Charging Support RegisterYes
07hDevice Removable Configuration RegisterYes
08hPort Used Configuration RegisterYes
09hReservedYes, program to 00h
0AhDevice Configuration Register 2Yes
0Bh to 0FhReserved
10h to 1FhUUID Byte [15:0]No
20h to 21hLangID Byte [1:0]Yes, if customStrings is set
22hSerial Number String LengthYes, if customSerNum is set
23hManufacturer String LengthYes, if customStrings is set
24hProduct String LengthYes, if customStrings is set
25h to 2FhReservedYes
30h to 4FhSerial Number String Byte [31:0]Yes, if customSerNum is set
50h to 8FhManufacturer String Byte [63:0]Yes, if customStrings is set
90h to CFhProduct String Byte [63:0]Yes, if customStrings is set
D0 to DFhReservedNo
F0hAdditional Feature Configuration RegisterYes
F1hReservedYes
F2hCharging Port Control RegisterYes
F3 to F7hReservedNo
F8hDevice Status and Command RegisterNo
F9 to FFhReservedNo