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EVM User's Guide: AUDIO-AM275-EVM AUDIO-AM62D-EVM
DP83867-EVM-AM User Guide
Description
DP83867-EVM-AM is an Industrial Ethernet PHY
add-on board to be used with Arm-based, high-
performance microcontroller evaluation modules. This
add-on board is an excellent choice for initial Ethernet
evaluation and prototyping using EVMs. DP83867-
EVM-AM is equipped with a TI DP83867IR low
latency 10/100/1000-Mbps PHY with RGMII interface
and a standard RJ45 Ethernet networking connector.
DP83867-EVM-AM is supported on EVMs that have
an Ethernet expansion connector such as the
AM275-EVM.
SPRUJG5 – JANUARY 2025
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Features
The Arm-based Processors EVM Industrial Ethernet
PHY Add-on Board has the following features:
•
DP83867IR
Industrial Ethernet PHY with RGMII interface
•
Standard RJ45 Ethernet networking connector
•
Shielded DF40GB 48-pin connector for interfacing
with Arm-based Processors series evaluation
modules
AUDIO-
Copyright © 2025 Texas Instruments Incorporated
low latency 10/100/1000-Mbps
DP83867-EVM-AM User Guide
Description
1
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Summary of Contents for Texas Instruments DP83867-EVM-AM
- Page 1 Shielded DF40GB 48-pin connector for interfacing latency 10/100/1000-Mbps PHY with RGMII interface with Arm-based Processors series evaluation and a standard RJ45 Ethernet networking connector. modules DP83867-EVM-AM is supported on EVMs that have an Ethernet expansion connector such as the AUDIO- AM275-EVM. SPRUJG5 – JANUARY 2025...
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Page 2: Kit Contents
Not included: • Note DP83867-EVM-AM can be available as a virtual bundle with select EVMs. Visit the EVM product page (DP83867-EVM-AM) for more information. 1.3 Device Information The DP83867 is a fully featured Physical Layer transceiver with integrated PMD sub-layers to support 10BASETe, 100BASE-TX and 1000BASE-T Ethernet protocols. - Page 3 2 Hardware 2.1 Component Identification DP83867IR Industrial Ethernet PHY RJ45 Ethernet Connector 512Kb EEPROM Figure 2-1. DP83867-EVM-AM Top Side DF40GB 48-pin shielded connector Figure 2-2. DP83867-EVM-AM Bottom Side SPRUJG5 – JANUARY 2025 DP83867-EVM-AM User Guide Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
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Page 4: Power Requirements
The EVM Industrial Ethernet PHY Add-on Board is powered from a 3.3V input from the DF40GB 48-pin connector that interfaces the DP83867-EVM-AM with the main EVM. The following sections describe the power distribution network topology that supply the EVM Industrial Ethernet PHY Add-on Board, supporting components, and reference voltages. - Page 5 RX_DV/RX_CTRL INT/PWDN RGMII_INT_N RGMII_RESET_N RESET RGMII_ETH_CLK RGMII_MDIO MDIO RGMII_MDC 512 Kb I2C_SCL EEPROM I2C_SDA Figure 2-4. AMx Industrial Ethernet PHY Add-on Board Block Diagram SPRUJG5 – JANUARY 2025 DP83867-EVM-AM User Guide Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
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Page 6: Header Information
Hardware www.ti.com 2.4 Header Information The DP83867-EVM-AM is equipped with a Hirose DF40GB 2x24-pin connector (J1) to connect to AMx EVMs. Listed below are the features of this connector relevant to this EVM: • 2x24 pins • Shielded type to support high-speed signals and prevent noise •... -
Page 7: Test Points
Hardware 2.5 Test Points DP83867-EVM-AM is equipped with multiple test points for hardware debug and bench testing. Table 2-2 shows the test points on the board and their associated signal net. Table 2-2. DP83867-EVM-AM Test Points Test Point Signal... - Page 8 The MDIO and Interrupt signals from the main EVM SoC to the PHY require 2.2KΩ pull up resistors to the I/O supply voltage for proper operation. These resistors are not assembled by default on the DP83867-EVM-AM, but there are footprints if the main EVM does not have these signals pulled up. The interrupt signal is driven by a GPIO signal that is mapped from the main EVM SoC.
- Page 9 Note The DP83867-EVM-AM is designed for a VDDIO voltage of 3.3V. If these board is connected to a 1.8V VDDIO system then the strapping resistors will need to be updated. For complete details on the strapping resistor modes, refer to the 4-Level Strap Resistor Ratios table within the DP83867IR Data Sheet.
- Page 10 Table 2-4. ICSSM PRU1 RJ45 Connector LED indication Color Indication Green Ethernet PHY power established Right LED Yellow 10BT speed link is up Green Ethernet activity indicator Left LED Yellow GPIO0 DP83867-EVM-AM User Guide SPRUJG5 – JANUARY 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
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Page 11: Integration Guide
Hardware 2.6.1.4 Multi-Connector Addressing For AMx EVMs with more than one Ethernet add-on board connector, each DP83867-EVM-AM requires a different EEPROM I2C address and PHY address. The EEPROM A0 and A2 nets, set by pull resistors on the main EVM drive the PHY address nets via a FET network implemented on the DP83867-EVM-AM. - Page 12 PCB dimensions for an Industrial Ethernet PHY add-on board to be compatible with AMx EVMs. Figure 2-7. Industrial Ethernet PHY Add-on Board Dimensions DP83867-EVM-AM User Guide SPRUJG5 – JANUARY 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
- Page 13 TI does NOT recommend mounting any Ethernet Add-on cards to the EVM without the mounting hardware. Doing so may cause damage to either or both boards. SPRUJG5 – JANUARY 2025 DP83867-EVM-AM User Guide Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
- Page 14 3 Hardware Design Files To download the zip file containing the latest design files for the EVM, go to the EVM product page on ti.com (DP83867-EVM-AM). DP83867-EVM-AM User Guide SPRUJG5 – JANUARY 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
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Page 15: Additional Information
Additional Information 4 Additional Information 4.1 Trademarks ™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. SPRUJG5 – JANUARY 2025 DP83867-EVM-AM User Guide Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated... -
Page 16: Revision History
AM62Dx Audio Evaluation Module Tool Folder • DP83867IR Datasheet • DP83867IR Product Folder • Texas Instruments Code Composer Studio 6 Revision History DATE REVISION NOTES January 2025 Initial Release DP83867-EVM-AM User Guide SPRUJG5 – JANUARY 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated... - Page 17 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2025, Texas Instruments Incorporated...
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