SLLU391 November   2024 TDP142-Q1

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Device Information
  8. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Jumper Information
      1. 2.2.1 Configuration Jumper Levels
      2. 2.2.2 Default and Adjustable Jumper Settings
    3. 2.3 Best Practices
  9. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials (BOM)
  10. 4Additional Information
    1. 4.1 Trademarks
    2. 4.2 Related Documentation

2.2.2 Default and Adjustable Jumper Settings

The TDP142 settings are configurable through the test configuration headers provided on the board. The following table summarizes the configuration settings. See the TDP142-Q1 data sheet for the details on the device operation in different settings.

Table 2-2 Device Configuration
REFERENCE NUMBERSIGNAL NAMEDEFAULT CONFIGURATIONDESCRIPTION
JMP37

I2C_EN

Low (5-6): GPIO mode

Configures device to operate in I2C mode or GPIO mode

For I2C mode at 1.8V connect the jumper (3-4)

For I2C mode at 3.3V connect the jumper (1-2)

JMP38

DPEQ0/ A1

R (3-4): Set EQ to level 5 of 15

Sets the EQ of the DisplayPort™ lanes/ sets the I2C address

See the Linear EQ Configuration section in the data sheet for more information

See the Programming section in the data sheet for I2C address control settings

R(3-4)

High (1-2)

Low (5-6)

F(float)

JMP39

DPEQ1

R (3-4): Set EQ to level 5 of 15

Sets the EQ of the DisplayPort™ lanes

See the Linear EQ Configuration section in the data sheet for more information

R(3-4)

High (1-2)

Low (5-6)

F(float)

JMP40

DPEN

High (1-3): Enable DisplayPort™ functionality

When I2C_EN is Low this pin will enable and disable DisplayPort™ functionality

When I2C_EN is High, this pin functions as the HPD receiver from the DisplayPort™ sink. In this mode connect the jumper (3-4)

J3

A0

F (float): No connection required

When in GPIO mode leave this pin disconnected

When in I2C mode, this pin is used to set the TDP142Q1 I2C address.

See the Programming section in the data sheet for I2C address control settings

High (1-2)

Low (2-3)

F(float)

J12

DPPWR

DPSRC (2-3): Provide 3.3V to the DisplayPort™ source through DisplayPort™ power in.

Provides 3.3V to the DisplayPort™ source or DisplayPort™ sink.

To provided 3.3V to DsiplayPort™ sink connect jumper (1-2)

J11

3.3V

3.3V (1-2)

Test point for 3.3V, and ability to provide 3.3V externally

J1

SCL

SCL(2-3): Tie SCL low

This is the serial clock input for I2C communication

J7

SDA

SDA (2-3): Tie SDA low

This is the serial data input for I2C communication

J8

2x5 I2C header

F (float)

This header is not functional as the SCL and SDA lanes are swapped. Use J7 and J1 to program this device.