SNLA338A January   2020  – August 2022 DP83826E

 

  1.   KSZ8081MNX/RNB to DP83826 System Rollover
  2.   Trademarks
  3. 1Purpose
  4. 2Required Changes
    1. 2.1 Strap Resistor Value
    2. 2.2 External Capacitor on Pin 2
    3. 2.3 Duplex Strap on Pin 16 (DP83826 Basic Mode)
    4. 2.4 Selecting 10M with Auto-Negotiation Enabled (DP83826 Basic Mode)
    5. 2.5 Configuring LED_1 for Tx and Rx Activity for EtherCAT Slave (DP83826 Basic Mode)
    6. 2.6 Thermal Pad Adjustments in Layout
    7. 2.7 Physical Layer ID Register
  5. 3Potential Changes
    1. 3.1 MDIO Pull-Up Resistor on Pin 11
    2. 3.2 MDIO Register Writes
    3. 3.3 Capacitors on Center Tap of Magnetics
  6. 4Informational Changes
  7. 5Pinout Mapping
    1. 5.1 Pin Mapping
  8. 6DP83826 Strap Configurations
    1. 6.1 Bootstrap Configurations
  9. 7Revision History

4 Informational Changes

This section describes feature differences between the DP83826 and KSZ8081.

Table 4-1 DP83826 vs. KSZ8081MNX/RNB Feature Set Comparison
Features KSZ8081MNX/RNB DP83826
VDDIO 1.8V, 2.5V, 3.3V 1.8V, 3.3V
NAND Tree Support Supported Not Supported
PHY Broadcast Address Supported Not Supported
MII Back-2-Back Mode Supported Supported in ENHANCED Mode for Repeater Functionality
Slow Oscillator Mode Supported Supported - known as Deep Power Down Mode