ZHCSA13P November   2008  – February 2021 TMS320F28020 , TMS320F280200 , TMS320F28021 , TMS320F28022 , TMS320F28023 , TMS320F28023-Q1 , TMS320F28026 , TMS320F28026-Q1 , TMS320F28026F , TMS320F28027 , TMS320F28027-Q1 , TMS320F28027F , TMS320F28027F-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 功能方框图‎
  5. 5 修订历史记录
  6. 6 Device Comparison
    1. 6.1 Related Products
  7. 7 Terminal Configuration and Functions
    1. 7.1 引脚图
    2. 7.2 信号说明
      1. 7.2.1 信号说明
  8. 8 规格
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  ESD 等级 - 汽车
    3. 8.3  ESD 等级 - 商用
    4. 8.4  建议工作条件
    5. 8.5  功耗摘要
      1. 8.5.1 TMS320F2802x/F280200 在 40MHz SYSCLKOUT 下的电流消耗
      2. 8.5.2 TMS320F2802x 在 50MHz SYSCLKOUT 下的电流消耗
      3. 8.5.3 TMS320F2802x 在 60MHz SYSCLKOUT 下的电流消耗
      4. 8.5.4 Reducing Current Consumption
      5. 8.5.5 流耗图（VREG 启用）
    6. 8.6  电气特性
    7. 8.7  热阻特性
      1. 8.7.1 PT 封装
      2. 8.7.2 DA 封装
    8. 8.8  散热设计注意事项
    9. 8.9  无信号缓冲情况下 MCU 与 JTAG 调试探针的连接
    10. 8.10 参数信息
      1. 8.10.1 时序参数符号
      2. 8.10.2 定时参数的通用注释
    11. 8.11 测试负载电路
    12. 8.12 电源时序
      1. 8.12.1 复位 (XRS) 时序要求
      2. 8.12.2 复位 (XRS) 开关特性
    13. 8.13 时钟规范
      1. 8.13.1 器件时钟表
        1. 8.13.1.1 2802x 时钟表和命名规则（40MHz 器件）
        2. 8.13.1.2 2802x 时钟表和命名规则（50MHz 器件）
        3. 8.13.1.3 2802x时钟表和命名规则（60MHz 器件）
        4. 8.13.1.4 器件计时要求/特性
        5. 8.13.1.5 内部零引脚振荡器 (INTOSC1/INTOSC2) 特性
      2. 8.13.2 时钟要求和特性
        1. 8.13.2.1 XCLKIN 定时要求 - PLL 已启用
        2. 8.13.2.2 XCLKIN 时序要求 - PLL 已禁用
        3. 8.13.2.3 XCLKOUT 开关特性（旁路或启用 PLL）
    14. 8.14 闪存定时
      1. 8.14.1 T 温度材料的闪存/OTP 耐久性
      2. 8.14.2 S 温度材料的闪存/OTP 耐久性
      3. 8.14.3 Q 温度材料的闪存/OTP 耐久性
      4. 8.14.4 60MHz SYSCLKOUT 下的闪存参数
      5. 8.14.5 50MHz SYSCLKOUT 上的闪存参数：
      6. 8.14.6 40MHz SYSCLKOUT 上的闪存参数：
      7. 8.14.7 闪存编程/擦除时间
      8. 8.14.8 闪存 / OTP 访问时序
      9. 8.14.9 Flash Data Retention Duration
  9. 9 详细说明
    1. 9.1 Overview
      1. 9.1.1  CPU
      2. 9.1.2  Memory Bus (Harvard Bus Architecture)
      3. 9.1.3  外设总线
      4. 9.1.4  Real-Time JTAG and Analysis
      5. 9.1.5  Flash
      6. 9.1.6  M0，M1 SARAM
      7. 9.1.7  L0 SARAM
      8. 9.1.8  Boot ROM
        1. 9.1.8.1 仿真引导
        2. 9.1.8.2 GetMode
        3. 9.1.8.3 引导加载器使用的外设引脚
      9. 9.1.9  Security
      10. 9.1.10 外设中断扩展 (PIE) 块
      11. 9.1.11 外部中断 (XINT1-XINT3)
      12. 9.1.12 内部零引脚振荡器、振荡器和 PLL
      13. 9.1.13 看门狗
      14. 9.1.14 Peripheral Clocking
      15. 9.1.15 Low-power Modes
      16. 9.1.16 外设帧 0，1，2 (PFn)
      17. 9.1.17 通用输入/输出 (GPIO) 复用器
      18. 9.1.18 32 位 CPU 定时器 (0，1，2)
      19. 9.1.19 Control Peripherals
      20. 9.1.20 串行端口外设
    2. 9.2 Memory Maps
    3. 9.3 Register Maps
    4. 9.4 Device Emulation Registers
    5. 9.5 VREG/BOR/POR
      1. 9.5.1 片载电压稳压器 (VREG)
        1. 9.5.1.1 使用片上 VREG
        2. 9.5.1.2 禁用片载 VREG
      2. 9.5.2 On-chip Power-On Reset (POR) and Brown-Out Reset (BOR) Circuit
    6. 9.6 系统控制
      1. 9.6.1 内部零引脚振荡器
      2. 9.6.2 Crystal Oscillator Option
      3. 9.6.3 PLL-Based Clock Module
      4. 9.6.4 输入时钟的损耗（NMI 看门狗功能）
      5. 9.6.5 CPU 看门狗模块
    7. 9.7 Low-power Modes Block
    8. 9.8 Interrupts
      1. 9.8.1 External Interrupts
        1. 9.8.1.1 外部中断电子数据/定时
          1. 9.8.1.1.1 External Interrupt Timing Requirements
          2. 9.8.1.1.2 External Interrupt Switching Characteristics
    9. 9.9 外设
      1. 9.9.1  Analog Block
        1. 9.9.1.1 模数转换器 (ADC)
          1. 9.9.1.1.1 特性
          2. 9.9.1.1.2 ADC 转换开始电子数据/定时
            1. 9.9.1.1.2.1 外部 ADC 转换启动开关特性
          3. 9.9.1.1.3 片载模数转换器 (ADC) 电子数据/定时
            1. 9.9.1.1.3.1 ADC Electrical Characteristics
            2. 9.9.1.1.3.2 ADC 电源模式
            3. 9.9.1.1.3.3 内部温度传感器
              1. 9.9.1.1.3.3.1 Temperature Sensor Coefficient
            4. 9.9.1.1.3.4 ADC 加电控制位时序
              1. 9.9.1.1.3.4.1 ADC 加电延迟
            5. 9.9.1.1.3.5 ADC 顺序模式时序和同步模式时序
        2. 9.9.1.2 ADC 多路复用器
        3. 9.9.1.3 比较器块
          1. 9.9.1.3.1 片载比较器 / DAC 电子数据/定时
            1. 9.9.1.3.1.1 Electrical Characteristics of the Comparator/DAC
      2. 9.9.2  详细说明
      3. 9.9.3  Serial Peripheral Interface (SPI) Module
        1. 9.9.3.1 SPI 主模式电气数据/时序
          1. 9.9.3.1.1 SPI Master Mode External Timing (Clock Phase = 0)
          2. 9.9.3.1.2 SPI Master Mode External Timing (Clock Phase = 1)
        2. 9.9.3.2 SPI 从模式电气数据/时序
          1. 9.9.3.2.1 SPI Slave Mode External Timing (Clock Phase = 0)
          2. 9.9.3.2.2 SPI Slave Mode External Timing (Clock Phase = 1)
      4. 9.9.4  Serial Communications Interface (SCI) Module
      5. 9.9.5  Inter-Integrated Circuit (I2C)
        1. 9.9.5.1 I2C 电气数据/时序
          1. 9.9.5.1.1 I2C 时序要求
          2. 9.9.5.1.2 I2C 开关特性
      6. 9.9.6  Enhanced PWM Modules (ePWM1/2/3/4)
        1. 9.9.6.1 ePWM 电气数据/时序
          1. 9.9.6.1.1 ePWM Timing Requirements
          2. 9.9.6.1.2 ePWM 开关特性
        2. 9.9.6.2 触发区输入时序
          1. 9.9.6.2.1 Trip-Zone Input Timing Requirements
      7. 9.9.7  High-Resolution PWM (HRPWM)
        1. 9.9.7.1 HRPWM 电气数据/时序
          1. 9.9.7.1.1 SYSCLKOUT = 50MHz–60MHz 下的高分辨率 PWM 特性
      8. 9.9.8  Enhanced Capture Module (eCAP1)
        1. 9.9.8.1 eCAP 电气数据/时序
          1. 9.9.8.1.1 Enhanced Capture (eCAP) Timing Requirement
          2. 9.9.8.1.2 eCAP 开关特性
      9. 9.9.9  JTAG 端口
      10. 9.9.10 General-Purpose Input/Output (GPIO) MUX
        1. 9.9.10.1 GPIO 电气数据/时序
          1. 9.9.10.1.1 GPIO - 输出时序
            1. 9.9.10.1.1.1 通用输出开关特性
          2. 9.9.10.1.2 GPIO - 输入时序
            1. 9.9.10.1.2.1 通用输入时序要求
          3. 9.9.10.1.3 针对输入信号的采样窗口宽度
          4. 9.9.10.1.4 低功耗唤醒时序
            1. 9.9.10.1.4.1 IDLE Mode Timing Requirements
            2. 9.9.10.1.4.2 IDLE Mode Switching Characteristics
            3. 9.9.10.1.4.3 待机模式时序要求
            4. 9.9.10.1.4.4 待机模式开关特性
            5. 9.9.10.1.4.5 HALT Mode Timing Requirements
            6. 9.9.10.1.4.6 停机模式开关特性
  10. 10应用、实施和布局
    1. 10.1 TI 参考设计
  11. 11器件和文档支持
    1. 11.1 Device and Development Support Tool Nomenclature
    2. 11.2 Tools and Software
    3. 11.3 文档支持
    4. 11.4 支持资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 术语表
  12. 12机械、封装和可订购信息
    1. 12.1 封装信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

9.9.3 Serial Peripheral Interface (SPI) Module

The device includes the four-pin serial peripheral interface (SPI) module. One SPI module (SPI-A) is available. The SPI is a high-speed, synchronous serial I/O port that allows a serial bit stream of programmed length (1 to 16 bits) to be shifted into and out of the device at a programmable bit-transfer rate. Normally, the SPI is used for communications between the MCU and external peripherals or another processor. Typical applications include external I/O or peripheral expansion through devices such as shift registers, display drivers, and ADCs. Multidevice communications are supported by the master/slave operation of the SPI.

The SPI module features include:

  • Four external pins:
    • SPISOMI: SPI slave-output/master-input pin
    • SPISIMO: SPI slave-input/master-output pin
    • SPISTE: SPI slave transmit-enable pin
    • SPICLK: SPI serial-clock pin

Note:

All four pins can be used as GPIO if the SPI module is not used.

  • Two operational modes: master and slave

    Baud rate: 125 different programmable rates.

    GUID-5B9E5347-D9EC-4FE9-946C-9A5D76753A23-low.gif
  • Data word length: 1 to 16 data bits
  • Four clocking schemes (controlled by clock polarity and clock phase bits) include:
    • Falling edge without phase delay: SPICLK active-high. SPI transmits data on the falling edge of the SPICLK signal and receives data on the rising edge of the SPICLK signal.
    • Falling edge with phase delay: SPICLK active-high. SPI transmits data one half-cycle ahead of the falling edge of the SPICLK signal and receives data on the falling edge of the SPICLK signal.
    • Rising edge without phase delay: SPICLK inactive-low. SPI transmits data on the rising edge of the SPICLK signal and receives data on the falling edge of the SPICLK signal.
    • Rising edge with phase delay: SPICLK inactive-low. SPI transmits data one half-cycle ahead of the rising edge of the SPICLK signal and receives data on the rising edge of the SPICLK signal.
  • Simultaneous receive and transmit operation (transmit function can be disabled in software)
  • Transmitter and receiver operations are accomplished through either interrupt-driven or polled algorithms.
  • Nine SPI module control registers: In control register frame beginning at address 7040h.
    Note:

    All registers in this module are 16-bit registers that are connected to Peripheral Frame 2. When a register is accessed, the register data is in the lower byte (7–0), and the upper byte (15–8) is read as zeros. Writing to the upper byte has no effect.

Enhanced feature:

  • 4-level transmit/receive FIFO
  • Delayed transmit control
  • Bidirectional 3 wire SPI mode support

The SPI port operation is configured and controlled by the registers listed in Table 9-24 .

Table 9-24 SPI-A Registers
NAMEADDRESSSIZE (x16)EALLOW PROTECTEDDESCRIPTION(1)
SPICCR0x70401NoSPI-A Configuration Control Register
SPICTL0x70411NoSPI-A Operation Control Register
SPISTS0x70421NoSPI-A Status Register
SPIBRR0x70441NoSPI-A Baud Rate Register
SPIRXEMU0x70461NoSPI-A Receive Emulation Buffer Register
SPIRXBUF0x70471NoSPI-A Serial Input Buffer Register
SPITXBUF0x70481NoSPI-A Serial Output Buffer Register
SPIDAT0x70491NoSPI-A Serial Data Register
SPIFFTX0x704A1NoSPI-A FIFO Transmit Register
SPIFFRX0x704B1NoSPI-A FIFO Receive Register
SPIFFCT0x704C1NoSPI-A FIFO Control Register
SPIPRI0x704F1NoSPI-A Priority Control Register
(1) Registers in this table are mapped to Peripheral Frame 2. This space only allows 16-bit accesses. 32-bit accesses produce undefined results.

For more information on the SPI, see the Serial Peripheral Interface (SPI) chapter in the TMS320F2802x,TMS320F2802xx Technical Reference Manual.

Figure 9-28 is a block diagram of the SPI in slave mode.

GUID-5CBD0A79-C2FE-4E39-8D61-1DA1B848B0E6-low.gif
A. SPISTE is driven low by the master for a slave device.
Figure 9-28 SPI Module Block Diagram (Slave Mode)