TIDUFF7A October   2025  – March 2026

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Terminology
    2. 1.2 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 AM2612
      2. 2.3.2 DRV7167A
      3. 2.3.3 AMC0106M05
      4. 2.3.4 DP83826A
  9. 3System Design Theory
    1. 3.1 AM2612 Motor Control and Communication Interface
    2. 3.2 DC Link and Ground Configuration
    3. 3.3 Three-Phase Inverter With DRV7167A Half-Bridge GaN Motor Driver Power Stage
    4. 3.4 Inline Shunt Precision Phase-Current Sensing With AMC0106M05 Functionally Isolated, Delta-Sigma Modulator
    5. 3.5 System Power Management
    6. 3.6 Functional Safety Concept
    7. 3.7 Ethernet Physical Layer
    8. 3.8 Position Feedback Interface
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
      1. 4.1.1 TIDA-010979 PCB Overview
      2. 4.1.2 TIDA-010979 Hardware Setting
    2. 4.2 Software Requirements
    3. 4.3 Test Setup
    4. 4.4 Test Results
      1. 4.4.1 Power Management and System Power Up and Power Down
      2. 4.4.2 Half-Bridge GaN Motor Driver Power Stage Switch Node
      3. 4.4.3 Power Stage Thermal Measurements
      4. 4.4.4 Phase-Current Sensing and Position Feedback
      5. 4.4.5 EtherCAT® Communication
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
      3. 5.1.3 Layout Prints
      4. 5.1.4 Altium Project
      5. 5.1.5 Gerber Files
      6. 5.1.6 Assembly Drawings
    2. 5.2 Tools and Software
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
  12. 6About the Author
  13. 7Revision History

2.3.1 AM2612

The AM261x Sitara Arm Microcontrollers are part of the Sitara AM26x real-time MCU families designed to meet the complex real-time processing needs of next-generation industrial and automotive embedded products. With scalable Arm Cortex-R5F performance and an extensive set of peripherals, the AM261x device is designed for a broad range of applications while offering safety features and optimized peripherals for real-time control. Figure 2-2 shows the functional block diagram. Table 2-1 summarizes the key features and benefits.

TIDA-010979 AM261x Functional Block Diagram Figure 2-2 AM261x Functional Block Diagram
Table 2-1 AM261x Features and Benefits
FEATURES BENEFITS
Dual Cortex-R5F cores with 2K DMIPS and 512KB TCM Provide high CPU performance to meet complex real-time processing needs
Trigonometric Math Unit (TMU) on each R5F Accelerate trigonometric function for motor control
21-channel 12-bit ADC, 10 × PWM (20-channel), 18 × analog comparators, 8 × eCAP, 8-channel SDFM Multiple peripherals for low latency control loop
2 × PRU-ICSS, USB, Integrated Ethernet Switch (CPSW) with up to 2 × Gigabit ports to support cut-through and TSN Rich communication and connectivity options. PRU-ICSS enables motor control feedback protocols such as EnDat2.2, Tamagawa, BiSS and so forth. Also enables industrial Ethernet protocols such as EtherCAT, Ethernet/IP, Profinet, IO-link, and so forth.
Lock-step optional, hardware security module (HSM) SIL3 certified for functional safety. Enables secure system design with cryptographic acceleration, secure boot and granular firewalls managed by the HSM.