SNLA438 September   2023 DP83822H , DP83822HF , DP83822I , DP83822IF , DP83826E , DP83826I , DP83867CS , DP83867E , DP83867IS , DP83869HM

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2PROFINET Specification Requirements
  6. 3Ethernet PHY Setup
    1. 3.1 DP83822
      1. 3.1.1 DP83822 Hardware Bootstrap Configurations
      2. 3.1.2 DP83822 Register Configuration
    2. 3.2 DP83826
      1. 3.2.1 DP83826 Hardware Bootstrap Configuration
      2. 3.2.2 DP83826 Register Configuration
    3. 3.3 DP83867
      1. 3.3.1 DP83867 Hardware Bootstrap Configurations
      2. 3.3.2 DP83867 Register Configuration
    4. 3.4 DP83869
      1. 3.4.1 DP83869 Hardware Bootstrap Configurations
      2. 3.4.2 DP83869 Register Configuration
  7. 4Summary
  8. 5References

2 PROFINET Specification Requirements

An Ethernet PHY which supports PROFINET® requirements must be compliant to the IEEE802.3 standard and must fulfill all the required functionality.

The standard functionality are listed in Table 2-1.

Table 2-1 PROFINET Requirements
Feature Description
MAC Interface MII (mandatory)
RGMII/RMII (optional)
Speed 100Base-TX (mandatory)
1000Base-T (optional)
100Base-FX (optional)
1000Base-X (optional)
MDI/MDIX Auto-Negotiation
Manual Setting
Serial Management Interface (MDIO) as defined by IEEE 802.3 Clause 45 Power Down Mode with MDIO interface running is required
LED indication support Manual control (by software) is required
Note:
  • For PROFINET® Isochronous real-time applications, auto-negotiation might need to be disabled and speed, MDI/X, and Full Duplex operation to be configured manually.
  • Items marked as optional are application specific.