SPRADQ5 March   2025 AM2612 , AM2612-Q1 , AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1 , AM263P2-Q1 , AM263P4 , AM263P4-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction of AC or Servo Drive Hot-Side Control Architecture
  5. 2PRU and FSI Implementation for Time Synchronization and Data Transmitting
    1. 2.1 Importance of Clock in Industrial Systems With MCUs
    2. 2.2 IEP Timer Interface
    3. 2.3 PRU_ICSSG Task Manger
    4. 2.4 Fast Serial Interface
    5. 2.5 Two-Chip System Scheme for Time Synchronization and Data Transmitting
      1. 2.5.1 Device 1 Configuration
        1. 2.5.1.1 Pad Configuration
        2. 2.5.1.2 Clock Source Configuration
        3. 2.5.1.3 IEP Timer Configuration
        4. 2.5.1.4 Task Manager Configuration
      2. 2.5.2 Device 2 Configuration
        1. 2.5.2.1 Pad Configuration
        2. 2.5.2.2 Clock Configuration
        3. 2.5.2.3 IEP Timer Configuration
        4. 2.5.2.4 TSR Configuration
        5. 2.5.2.5 Task Manager Configuration
  6. 3Verification
  7. 4Summary
  8. 5References

2.4 Fast Serial Interface

Fast Serial Interface (FSI) module is a serial communication peripheral capable of reliable high-speed communication across isolation devices. Galvanic isolation devices are used in situations where two different electronic circuits, which do not have common power and ground connections, must exchange information. Though isolation devices facilitate these signal communications, the devices can also introduce a large delay on the signal lines and add skew between the signals. The FSI is designed specifically to make sure reliable high-speed communication for system scenarios that involve communication across isolation barriers without adding components. The FSI consists of independent transmitter (FSITX) and receiver (FSIRX) cores. The FSITX and FSIRX cores are configured and operated independently. Figure 2-4 shows the high level FSI communication block diagram. With 50MHz clock and 2 data line, the communication speed of FSI can reach to 200Mbit/sec.

FSI High Level Communication ModulesFigure 2-4 FSI High Level Communication Modules