JAJSIR1B March   2020  – December 2020 TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1. 3.1 機能ブロック図
  4. 4 Revision History
  5. 5 Device Comparison
    1. 5.1 Related Products
  6. 6 Terminal Configuration and Functions
    1. 6.1 Pin Diagrams
    2. 6.2 Pin Attributes
    3. 6.3 Signal Descriptions
      1. 6.3.1 Analog Signals
      2. 6.3.2 Digital Signals
      3. 6.3.3 Power and Ground
      4. 6.3.4 Test, JTAG, and Reset
    4. 6.4 Pin Multiplexing
      1. 6.4.1 GPIO Muxed Pins
        1. 6.4.1.1 GPIO Muxed Pins Table
      2. 6.4.2 Digital Inputs on ADC Pins (AIOs)
      3. 6.4.3 GPIO Input X-BAR
      4. 6.4.4 GPIO Output X-BAR, CLB X-BAR, CLB Output X-BAR, and ePWM X-BAR
    5. 6.5 Pins With Internal Pullup and Pulldown
    6. 6.6 Connections for Unused Pins
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings – Commercial
    3. 7.3  ESD Ratings – Automotive
    4. 7.4  Recommended Operating Conditions
    5.     Supply Voltages
    6. 7.5  Power Consumption Summary
      1. 7.5.1 System Current Consumption
      2. 7.5.2 Operating Mode Test Description
      3. 7.5.3 Current Consumption Graphs
      4. 7.5.4 Reducing Current Consumption
        1. 7.5.4.1 Typical Current Reduction per Disabled Peripheral
    7. 7.6  Electrical Characteristics
    8. 7.7  Thermal Resistance Characteristics for PN Package
    9. 7.8  Thermal Resistance Characteristics for PM Package
    10. 7.9  Thermal Resistance Characteristics for PT Package
    11. 7.10 Thermal Design Considerations
    12. 7.11 System
      1. 7.11.1 Power Management
        1. 7.11.1.1 Internal 1.2-V LDO Voltage Regulator (VREG)
        2. 7.11.1.2 Power Sequencing
        3. 7.11.1.3 Power-On Reset (POR)
        4. 7.11.1.4 Brownout Reset (BOR)
      2. 7.11.2 Reset Timing
        1. 7.11.2.1 Reset Sources
        2. 7.11.2.2 Reset Electrical Data and Timing
          1. 7.11.2.2.1 Reset (XRSn) Timing Requirements
          2. 7.11.2.2.2 Reset (XRSn) Switching Characteristics
          3. 7.11.2.2.3 Reset Timing Diagrams
      3. 7.11.3 Clock Specifications
        1. 7.11.3.1 Clock Sources
        2. 7.11.3.2 Clock Frequencies, Requirements, and Characteristics
          1. 7.11.3.2.1 Input Clock Frequency and Timing Requirements, PLL Lock Times
            1. 7.11.3.2.1.1 Input Clock Frequency
            2. 7.11.3.2.1.2 XTAL Oscillator Characteristics
            3. 7.11.3.2.1.3 X1 Timing Requirements
            4. 7.11.3.2.1.4 APLL Characteristics
            5. 7.11.3.2.1.5 XCLKOUT Switching Characteristics
            6. 7.11.3.2.1.6 Internal Clock Frequencies
        3. 7.11.3.3 Input Clocks and PLLs
        4. 7.11.3.4 Crystal Oscillator
          1. 7.11.3.4.1 Crystal Oscillator Parameters
          2. 7.11.3.4.2 Crystal Oscillator Electrical Characteristics
        5. 7.11.3.5 Internal Oscillators
          1. 7.11.3.5.1 INTOSC Characteristics
      4. 7.11.4 Flash Parameters
      5. 7.11.5 Emulation/JTAG
        1. 7.11.5.1 JTAG Electrical Data and Timing
          1. 7.11.5.1.1 JTAG Timing Requirements
          2. 7.11.5.1.2 JTAG Switching Characteristics
          3. 7.11.5.1.3 JTAG Timing Diagram
        2. 7.11.5.2 cJTAG Electrical Data and Timing
          1. 7.11.5.2.1 cJTAG Timing Requirements
          2. 7.11.5.2.2 cJTAG Switching Characteristics
          3. 7.11.5.2.3 cJTAG Timing Diagram
      6. 7.11.6 GPIO Electrical Data and Timing
        1. 7.11.6.1 GPIO – Output Timing
          1. 7.11.6.1.1 General-Purpose Output Switching Characteristics
        2. 7.11.6.2 GPIO – Input Timing
          1. 7.11.6.2.1 General-Purpose Input Timing Requirements
          2. 7.11.6.2.2 Sampling Mode
        3. 7.11.6.3 Sampling Window Width for Input Signals
      7. 7.11.7 Interrupts
        1. 7.11.7.1 External Interrupt (XINT) Electrical Data and Timing
          1. 7.11.7.1.1 External Interrupt Timing Requirements
          2. 7.11.7.1.2 External Interrupt Switching Characteristics
          3. 7.11.7.1.3 External Interrupt Timing
      8. 7.11.8 Low-Power Modes
        1. 7.11.8.1 Clock-Gating Low-Power Modes
        2. 7.11.8.2 Low-Power Mode Wake-up Timing
          1. 7.11.8.2.1 IDLE Mode Timing Requirements
          2. 7.11.8.2.2 IDLE Mode Switching Characteristics
          3. 7.11.8.2.3 IDLE Entry and Exit Timing Diagram
          4. 7.11.8.2.4 STANDBY Mode Timing Requirements
          5. 7.11.8.2.5 STANDBY Mode Switching Characteristics
          6. 7.11.8.2.6 STANDBY Entry and Exit Timing Diagram
          7. 7.11.8.2.7 HALT Mode Timing Requirements
          8. 7.11.8.2.8 HALT Mode Switching Characteristics
          9. 7.11.8.2.9 HALT Entry and Exit Timing Diagram
    13. 7.12 Analog Peripherals
      1.      Analog Pins and Internal Connections
      2.      Analog Signal Descriptions
      3. 7.12.1 Analog-to-Digital Converter (ADC)
        1. 7.12.1.1 ADC Configurability
          1. 7.12.1.1.1 Signal Mode
        2. 7.12.1.2 ADC Electrical Data and Timing
          1. 7.12.1.2.1 ADC Operating Conditions
          2. 7.12.1.2.2 ADC Characteristics
          3. 7.12.1.2.3 ADC Input Model
          4. 7.12.1.2.4 ADC Timing Diagrams
      4. 7.12.2 Temperature Sensor
        1. 7.12.2.1 Temperature Sensor Electrical Data and Timing
          1. 7.12.2.1.1 Temperature Sensor Characteristics
      5. 7.12.3 Comparator Subsystem (CMPSS)
        1. 7.12.3.1 CMPSS Electrical Data and Timing
          1. 7.12.3.1.1 Comparator Electrical Characteristics
          2.        CMPSS Comparator Input Referred Offset and Hysteresis
          3. 7.12.3.1.2 CMPSS DAC Static Electrical Characteristics
          4. 7.12.3.1.3 CMPSS Illustrative Graphs
    14. 7.13 Control Peripherals
      1. 7.13.1 Enhanced Pulse Width Modulator (ePWM)
        1. 7.13.1.1 Control Peripherals Synchronization
        2. 7.13.1.2 ePWM Electrical Data and Timing
          1. 7.13.1.2.1 ePWM Timing Requirements
          2. 7.13.1.2.2 ePWM Switching Characteristics
          3. 7.13.1.2.3 Trip-Zone Input Timing
            1. 7.13.1.2.3.1 Trip-Zone Input Timing Requirements
        3. 7.13.1.3 External ADC Start-of-Conversion Electrical Data and Timing
          1. 7.13.1.3.1 External ADC Start-of-Conversion Switching Characteristics
      2. 7.13.2 High-Resolution Pulse Width Modulator (HRPWM)
        1. 7.13.2.1 HRPWM Electrical Data and Timing
          1. 7.13.2.1.1 High-Resolution PWM Characteristics
      3. 7.13.3 Enhanced Capture and High-Resolution Capture (eCAP, HRCAP)
        1. 7.13.3.1 High-Resolution Capture (HRCAP)
        2.       eCAP and HRCAP Block Diagram
        3. 7.13.3.2 eCAP/HRCAP Synchronization
        4. 7.13.3.3 eCAP Electrical Data and Timing
          1. 7.13.3.3.1 eCAP Timing Requirements
          2. 7.13.3.3.2 eCAP Switching Characteristics
        5. 7.13.3.4 HRCAP Electrical Data and Timing
          1. 7.13.3.4.1 HRCAP Switching Characteristics
          2.        HRCAP Figure and Graph
      4. 7.13.4 Enhanced Quadrature Encoder Pulse (eQEP)
        1. 7.13.4.1 eQEP Electrical Data and Timing
          1. 7.13.4.1.1 eQEP Timing Requirements
          2. 7.13.4.1.2 eQEP Switching Characteristics
    15. 7.14 Communications Peripherals
      1. 7.14.1 Controller Area Network (CAN)
      2. 7.14.2 Inter-Integrated Circuit (I2C)
        1. 7.14.2.1 I2C Electrical Data and Timing
          1. 7.14.2.1.1 I2C Timing Requirements
          2. 7.14.2.1.2 I2C Switching Characteristics
          3. 7.14.2.1.3 I2C Timing Diagram
      3. 7.14.3 Power Management Bus (PMBus) Interface
        1. 7.14.3.1 PMBus Electrical Data and Timing
          1. 7.14.3.1.1 PMBus Electrical Characteristics
          2. 7.14.3.1.2 PMBus Fast Mode Switching Characteristics
          3. 7.14.3.1.3 PMBus Standard Mode Switching Characteristics
      4. 7.14.4 Serial Communications Interface (SCI)
      5. 7.14.5 Serial Peripheral Interface (SPI)
        1. 7.14.5.1 SPI Master Mode Timings
          1. 7.14.5.1.1 SPI Master Mode Timing Requirements
          2. 7.14.5.1.2 SPI Master Mode Switching Characteristics (Clock Phase = 0)
          3. 7.14.5.1.3 SPI Master Mode Switching Characteristics (Clock Phase = 1)
          4. 7.14.5.1.4 SPI Master Mode Timing Diagrams
        2. 7.14.5.2 SPI Slave Mode Timings
          1. 7.14.5.2.1 SPI Slave Mode Timing Requirements
          2. 7.14.5.2.2 SPI Slave Mode Switching Characteristics
          3. 7.14.5.2.3 SPI Slave Mode Timing Diagrams
      6. 7.14.6 Local Interconnect Network (LIN)
      7. 7.14.7 Fast Serial Interface (FSI)
        1. 7.14.7.1 FSI Transmitter
          1. 7.14.7.1.1 FSITX Electrical Data and Timing
            1. 7.14.7.1.1.1 FSITX Switching Characteristics
            2. 7.14.7.1.1.2 FSITX Timings
        2. 7.14.7.2 FSI Receiver
          1. 7.14.7.2.1 FSIRX Electrical Data and Timing
            1. 7.14.7.2.1.1 FSIRX Timing Requirements
            2. 7.14.7.2.1.2 FSIRX Switching Characteristics
            3. 7.14.7.2.1.3 FSIRX Timings
        3. 7.14.7.3 FSI SPI Compatibility Mode
          1. 7.14.7.3.1 FSITX SPI Signaling Mode Electrical Data and Timing
            1. 7.14.7.3.1.1 FSITX SPI Signaling Mode Switching Characteristics
            2. 7.14.7.3.1.2 FSITX SPI Signaling Mode Timings
      8. 7.14.8 Host Interface Controller (HIC)
        1. 7.14.8.1 HIC Electrical Data and Timing
          1. 7.14.8.1.1 HIC Timing Requirements
          2. 7.14.8.1.2 HIC Switching Characteristics
          3. 7.14.8.1.3 HIC Timing Diagrams
  8. 8 Detailed Description
    1. 8.1  Overview
    2. 8.2  Functional Block Diagram
    3. 8.3  Memory
      1. 8.3.1 Memory Map
        1. 8.3.1.1 Dedicated RAM (Mx RAM)
        2. 8.3.1.2 Local Shared RAM (LSx RAM)
        3. 8.3.1.3 Global Shared RAM (GSx RAM)
      2. 8.3.2 Flash Memory Map
        1. 8.3.2.1 Addresses of Flash Sectors
      3. 8.3.3 Peripheral Registers Memory Map
    4. 8.4  Identification
    5. 8.5  Bus Architecture – Peripheral Connectivity
    6. 8.6  C28x Processor
      1. 8.6.1 Floating-Point Unit (FPU)
      2. 8.6.2 Fast Integer Division Unit
      3. 8.6.3 Trigonometric Math Unit (TMU)
      4. 8.6.4 VCRC Unit
    7. 8.7  Embedded Real-Time Analysis and Diagnostic (ERAD)
    8. 8.8  Background CRC-32 (BGCRC)
    9. 8.9  Direct Memory Access (DMA)
    10. 8.10 Device Boot Modes
      1. 8.10.1 Device Boot Configurations
        1. 8.10.1.1 Configuring Boot Mode Pins
        2. 8.10.1.2 Configuring Boot Mode Table Options
      2. 8.10.2 GPIO Assignments
    11. 8.11 Dual Code Security Module
    12. 8.12 Watchdog
    13. 8.13 C28x Timers
    14. 8.14 Dual-Clock Comparator (DCC)
      1. 8.14.1 特長
      2. 8.14.2 Mapping of DCCx (DCC0 and DCC1) Clock Source Inputs
    15. 8.15 Configurable Logic Block (CLB)
  9. 9 Applications, Implementation, and Layout
    1. 9.1 TI Reference Design
  10. 10Device and Documentation Support
    1. 10.1 Getting Started and Next Steps
    2. 10.2 Device and Development Support Tool Nomenclature
    3. 10.3 Markings
    4. 10.4 Tools and Software
    5. 10.5 Documentation Support
    6. 10.6 サポート・リソース
    7. 10.7 Trademarks
    8. 10.8 静電気放電に関する注意事項
    9. 10.9 用語集
  11. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Packaging Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

7.14.7 Fast Serial Interface (FSI)

The Fast Serial Interface (FSI) module is a serial communication peripheral capable of reliable and robust high-speed communications. The FSI is designed to ensure data robustness across many system conditions such as chip-to-chip as well as board-to-board across an isolation barrier. Payload integrity checks such as CRC, start- and end-of-frame patterns, and user-defined tags, are encoded before transmit and then verified after receipt without additional CPU interaction. Line breaks can be detected using periodic transmissions, all managed and monitored by hardware. The FSI is also tightly integrated with other control peripherals on the device. To ensure that the latest sensor data or control parameters are available, frames can be transmitted on every control loop period. An integrated skew-compensation block has been added on the receiver to handle skew that may occur between the clock and data signals due to a variety of factors, including trace-length mismatch and skews induced by an isolation chip. With embedded data robustness checks, data-link integrity checks, skew compensation, and integration with control peripherals, the FSI can enable high-speed, robust communication in any system. These and many other features of the FSI follow.

The FSI module includes the following features:

  • Independent transmitter and receiver cores
  • Source-synchronous transmission
  • Dual data rate (DDR)
  • One or two data lines
  • Programmable data length
  • Skew adjustment block to compensate for board and system delay mismatches
  • Frame error detection
  • Programmable frame tagging for message filtering
  • Hardware ping to detect line breaks during communication (ping watchdog)
  • Two interrupts per FSI core
  • Externally triggered frame generation
  • Hardware- or software-calculated CRC
  • Embedded ECC computation module
  • Register write protection
  • DMA support
  • SPI compatibility mode (limited features available)

Operating the FSI at maximum speed (50 MHz) at dual data rate (100 Mbps) may require the integrated skew compensation block to be configured according to the specific operating conditions on a case-by-case basis. The Fast Serial Interface (FSI) Skew Compensation Application Report provides example software on how to configure and set up the integrated skew compensation block on the Fast Serial Interface.

The FSI consists of independent transmitter (FSITX) and receiver (FSIRX) cores. The FSITX and FSIRX cores are configured and operated independently. The features available on the FSITX and FSIRX are described in Section 7.14.7.1 and Section 7.14.7.2, respectively.