Texas Instruments DP83869 - Board Setup Details; Block Diagram; Figure 3-1. DP83869 EVM Block Diagram

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3 Board Setup Details

3.1 Block Diagram

DP83869

DUT

LDO

1.0V

LDO

2.5V

LDO

3.3V IO

LDO

MSP-430

EVM BLOCK

3.3V

LDO

LEDs

LED SPEED

LED ACT

LED LINK

SMI

Connector

Magnetics/

Capacitive

Coupling

RJ-45

Transceiver

RGMII Header

& Samtec

SMA

USB

External Supply

Header

25MHz Clock in

MDC

MDIO

SGMII

Fiber IO

ESD

Diodes

RESET

Turrets

Barrel Jack

3.3V from

MSP430 LDO

1x3

Header

Power

DATA

Jumper

(LDO vs External)

1.0VI/O 2.5V 1.8V

I/OCORE

Strap

Resistors

JTAG

Figure 3-1. DP83869EVM Block Diagram

Board Setup Details www.ti.com

8 DP83869 Evaluation Module SNLU237A – SEPTEMBER 2018 – REVISED JANUARY 2024

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Main Page

Table of Contents2
Definitions3
Introduction3
Table 1-1. Terminology3
Key Features4
Figure 2-1. DP83869EVM - Top Side4
Figure 2-2. DP83869EVM - Bottom Side5
Quick Setup6
Figure 2-3. Onboard Power Supply Connection6
Figure 2-4. Jumper Placements for Onboard Power6
Board Setup Details8
Block Diagram8
Figure 3-1. DP83869EVM Block Diagram8
EVM High-Level Summary9
Table 3-1. EVM Applications9
Configuration Options10
Bootstrap Options10
Figure 4-1. EVM Strap Jumpers10
Table 4-1. 4 Level Straps10
Table 4-2. 2 Level Straps10
Table 4-3. PHY Strap Table11
Table 4-4. Functional Mode Strap Table11
Table 4-5. Copper Ethernet Strap Table11
Table 4-6. 1000Base-X Strap Table12
Table 4-7. 100Base-X Strap Table12
Table 4-8. Bridge Mode Strap Table12
Table 4-9. 100 M Media Converter Strap Table12
Table 4-10. 1000 M Media Strap Table12
Sgmii/Fiber Interface13
Rgmii13
Clock Output13
Clock Input13
Figure 4-2. Onboard Clock13
Figure 4-3. External Clock Input13
Switch Configuration Options14
Table 4-11. 4-Pin Dip Switch Modes14
Schematics16
Figure 5-1. Schematic16
Figure 5-2. Schematic17
Figure 5-3. Schematic18
Figure 5-4. Schematic19
Figure 5-5. Schematic20
Figure 5-6. Schematic21
Revision History22

Texas Instruments DP83869 - Board Setup Details; Block Diagram; Figure 3-1. DP83869 EVM Block Diagram

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