SNLU353 October   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Specification
    3. 1.3 Device Information
  7. 2Evaluation Tutorial
    1. 2.1 How to Set Up the EVM
    2. 2.2 EVM Evaluation
  8. 3Hardware
    1. 3.1 Separate Power Rail
    2. 3.2 Status LEDs
    3. 3.3 MDC/MDIO Headers
    4. 3.4 MDC/MDIO Level Shifters
    5. 3.5 Manual Reset
  9. 4Software
    1. 4.1 GUI Installation
  10. 5Hardware Design Files
    1. 5.1 Schematics
  11. 6Additional Information
    1. 6.1 Trademarks

3.5 Manual Reset

The ASPEED Ethernet EVM also contains a manual reset button which causes a hard-reset of all PHYs when pressed. This is achieved by driving the active-low pins of each PHY to LOW. The reset circuitry also has an automatic reset that is triggered when VCC (OVDD_3V3) falls below 2.93V.

DP83867 DP83869 Manual Reset Push Button Figure 3-6 Manual Reset Push Button