SLLU349 August   2022

 

  1.   Abstract
  2.   Trademarks
  3. 1Read This First
    1. 1.1 Information About Cautions and Warnings
    2. 1.2 FCC Warning
  4. 2What is in the Box
    1. 2.1 List of Hardware Items for Operation
    2. 2.2 List of Software Items for Operation
  5. 3Summary of Hardware Design
    1. 3.1 Ribbon-Cable Connector J2 and Pinout
    2. 3.2 Configuration of Pullup Resistors for Pins 8, 9, and 10
    3. 3.3 LED Indication of USB Attached
    4. 3.4 Step-by-Step Instructions for Operation and Troubleshooting
  6. 4PMBUS and SMBUS Communications
    1. 4.1 Basic SMBUS Transaction Types Supported
    2. 4.2 Special Signals Used for PMBUS and SMBUS Communications
    3. 4.3 Packet Error Checking (PEC) Implementation
    4. 4.4 Communication Clock Speed and Clock Stretching

2.1 List of Hardware Items for Operation

In order to operate this USB interface adapter, the following items are required:

  • USB Interface Adapter (see Figure 2-1)
  • Standard type-A to type-mini-B (5-pin) USB cable
  • 10-pin ribbon cable with connectors on both ends

Figure 2-1 USB Interface Adapter
Note:

For the USB interface adapter to communicate with multiple I2C targets, build a special 10-pin ribbon cable with multiple connector or connectors, so that all the I2C targeted devices can be daisy-chained together on the same ribbon cable.