SCAU059A January   2024  – March 2024 TDP2004

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Hardware Configuration
      1. 2.1.1 Power
      2. 2.1.2 Configuration Jumpers
      3. 2.1.3 Rx EQ Configuration
      4. 2.1.4 Local I2C Access
    2. 2.2 Quick Start Guide
  7. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials (BOM)
  8. 4Additional Information
    1.     Trademarks
  9. 5Revision History

2.1.4 Local I2C Access

Access to the local I2C signals of TDP2004 is provided through the J8 connector. The TDP2004 supports 3.3V LVCMOS levels. Note the importance that the I2C signaling levels meet the TDP2004 LVCMOS levels when I2C interface is accessed through the connector.

A standalone external I2C host can be connected through J8 for debug and control purposes. An example of an external I2C Host controller is the Total Phase Aardvark I2C/SPI Host Adapter (Total Phase Part#: TP240141). Sample scripts for this I2C host controller are provided by request.

The target I2C address for the TDP2004 can be modified by the EVM jumpers J22 and J23. Please refer to the TDP2004 EQx/ADDRx pin settings and the corresponding I2C address. Refer to TDP2004 data sheet for the I2C target address options.

Table 2-4 Aardvark I2C (J8) Pinout
J5 pin # Description J5 pin # Description
1 SCL_CTL 2 GND
3 SDA_CTL 4 NC
5 NC 6 NC
7 NC 8 NC
9 NC 10 GND