SPRS357D August   2006  – June 2020 TMS320F28044

PRODUCTION DATA.  

  1. 1Device Overview
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. 2Revision History
  3. 3Device Comparison
    1. 3.1 Related Products
  4. 4Terminal Configuration and Functions
    1. 4.1 Pin Diagrams
    2. 4.2 Signal Descriptions
  5. 5Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings – Commercial
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Power Consumption Summary
      1. Table 5-1 TMS320F28044 Current Consumption by Power-Supply Pins at 100-MHz SYSCLKOUT
      2. 5.4.1     Reducing Current Consumption
    5. 5.5  Electrical Characteristics
    6. 5.6  Thermal Resistance Characteristics for F28044 100-Ball GGM Package
    7. 5.7  Thermal Resistance Characteristics for F28044 100-Pin PZ Package
    8. 5.8  Thermal Design Considerations
    9. 5.9  Timing and Switching Characteristics
      1. 5.9.1 Timing Parameter Symbology
        1. 5.9.1.1 General Notes on Timing Parameters
        2. 5.9.1.2 Test Load Circuit
        3. 5.9.1.3 Device Clock Table
          1. Table 5-3 TMS320x280x Clock Table and Nomenclature
      2. 5.9.2 Power Sequencing
        1. 5.9.2.1   Power Management and Supervisory Circuit Solutions
        2. Table 5-5 Reset (XRS) Timing Requirements
      3. 5.9.3 Clock Requirements and Characteristics
        1. Table 5-6 Input Clock Frequency
        2. Table 5-7 XCLKIN Timing Requirements - PLL Enabled
        3. Table 5-8 XCLKIN Timing Requirements - PLL Disabled
        4. Table 5-9 XCLKOUT Switching Characteristics (PLL Bypassed or Enabled)
      4. 5.9.4 Peripherals
        1. 5.9.4.1 General-Purpose Input/Output (GPIO)
          1. 5.9.4.1.1 GPIO - Output Timing
            1. Table 5-10 General-Purpose Output Switching Characteristics
          2. 5.9.4.1.2 GPIO - Input Timing
            1. Table 5-11 General-Purpose Input Timing Requirements
          3. 5.9.4.1.3 Sampling Window Width for Input Signals
          4. 5.9.4.1.4 Low-Power Mode Wakeup Timing
            1. Table 5-12 IDLE Mode Timing Requirements
            2. Table 5-13 IDLE Mode Switching Characteristics
            3. Table 5-14 STANDBY Mode Timing Requirements
            4. Table 5-15 STANDBY Mode Switching Characteristics
            5. Table 5-16 HALT Mode Timing Requirements
            6. Table 5-17 HALT Mode Switching Characteristics
        2. 5.9.4.2 Enhanced Control Peripherals
          1. 5.9.4.2.1 Enhanced Pulse Width Modulator (ePWM) Timing
            1. Table 5-18 ePWM Timing Requirements
            2. Table 5-19 ePWM Switching Characteristics
          2. 5.9.4.2.2 Trip-Zone Input Timing
            1. Table 5-20 Trip-Zone input Timing Requirements
          3. 5.9.4.2.3 High-Resolution PWM Timing
            1. Table 5-21 High Resolution PWM Characteristics at SYSCLKOUT = (60 - 100 MHz)
          4. 5.9.4.2.4 ADC Start-of-Conversion Timing
            1. Table 5-22 External ADC Start-of-Conversion Switching Characteristics
        3. 5.9.4.3 External Interrupt Timing
          1. Table 5-23 External Interrupt Timing Requirements
          2. Table 5-24 External Interrupt Switching Characteristics
        4. 5.9.4.4 I2C Electrical Specification and Timing
          1. Table 5-25 I2C Timing
        5. 5.9.4.5 Serial Peripheral Interface (SPI) Master Mode Timing
          1. Table 5-26 SPI Master Mode External Timing (Clock Phase = 0)
          2. Table 5-27 SPI Master Mode External Timing (Clock Phase = 1)
        6. 5.9.4.6 SPI Slave Mode Timing
          1. Table 5-28 SPI Slave Mode External Timing (Clock Phase = 0)
          2. Table 5-29 SPI Slave Mode External Timing (Clock Phase = 1)
      5. 5.9.5 JTAG Debug Probe Connection Without Signal Buffering for the DSP
      6. 5.9.6 Flash Timing
        1. Table 5-30 Flash Endurance for A Temperature Material
        2. Table 5-31 Flash Parameters at 100-MHz SYSCLKOUT
        3. Table 5-32 Flash/OTP Access Timing
        4. Table 5-33 Flash Data Retention Duration
    10. 5.10 On-Chip Analog-to-Digital Converter
      1. Table 5-35 ADC Electrical Characteristics (over recommended operating conditions)
      2. 5.10.1     ADC Power-Up Control Bit Timing
        1. Table 5-36 ADC Power-Up Delays
        2. Table 5-37 Current Consumption for Different ADC Configurations (at 25-MHz ADCCLK)
      3. 5.10.2     Definitions
      4. 5.10.3     Sequential Sampling Mode (Single-Channel) (SMODE = 0)
        1. Table 5-38 Sequential Sampling Mode Timing
      5. 5.10.4     Simultaneous Sampling Mode (Dual-Channel) (SMODE = 1)
        1. Table 5-39 Simultaneous Sampling Mode Timing
      6. 5.10.5     Detailed Descriptions
  6. 6Detailed Description
    1. 6.1 Brief Descriptions
      1. 6.1.1  C28x CPU
      2. 6.1.2  Memory Bus (Harvard Bus Architecture)
      3. 6.1.3  Peripheral Bus
      4. 6.1.4  Real-Time JTAG and Analysis
      5. 6.1.5  Flash
      6. 6.1.6  M0, M1 SARAMs
      7. 6.1.7  L0, L1 SARAMs
      8. 6.1.8  Boot ROM
      9. 6.1.9  Security
      10. 6.1.10 Peripheral Interrupt Expansion (PIE) Block
      11. 6.1.11 External Interrupts (XINT1, XINT2, XNMI)
      12. 6.1.12 Oscillator and PLL
      13. 6.1.13 Watchdog
      14. 6.1.14 Peripheral Clocking
      15. 6.1.15 Low-Power Modes
      16. 6.1.16 Peripheral Frames 0, 1, 2 (PFn)
      17. 6.1.17 General-Purpose Input/Output (GPIO) Multiplexer
      18. 6.1.18 32-Bit CPU-Timers (0, 1, 2)
      19. 6.1.19 Control Peripherals
      20. 6.1.20 Serial Port Peripherals
    2. 6.2 Peripherals
      1. 6.2.1 32-Bit CPU-Timers 0/1/2
      2. 6.2.2 Enhanced PWM Modules (ePWM1–16)
      3. 6.2.3 Hi-Resolution PWM (HRPWM)
      4. 6.2.4 Enhanced Analog-to-Digital Converter (ADC) Module
        1. 6.2.4.1 ADC Connections if the ADC Is Not Used
        2. 6.2.4.2 ADC Registers
      5. 6.2.5 Serial Communications Interface (SCI) Module (SCI-A)
      6. 6.2.6 Serial Peripheral Interface (SPI) Module (SPI-A)
      7. 6.2.7 Inter-Integrated Circuit (I2C)
      8. 6.2.8 GPIO MUX
    3. 6.3 Memory Map
    4. 6.4 Register Map
      1. 6.4.1 Device Emulation Registers
    5. 6.5 Interrupts
      1. 6.5.1 External Interrupts
    6. 6.6 System Control
      1. 6.6.1 OSC and PLL Block
        1. 6.6.1.1 External Reference Oscillator Clock Option
        2. 6.6.1.2 PLL-Based Clock Module
        3. 6.6.1.3 Loss of Input Clock
      2. 6.6.2 Watchdog Block
    7. 6.7 Low-Power Modes Block
  7. 7Applications, Implementation, and Layout
    1. 7.1 TI Reference Design
  8. 8Device and Documentation Support
    1. 8.1 Getting Started
    2. 8.2 Device and Development Support Tool Nomenclature
    3. 8.3 Tools and Software
    4. 8.4 Documentation Support
    5. 8.5 Support Resources
    6. 8.6 Trademarks
    7. 8.7 Electrostatic Discharge Caution
    8. 8.8 Glossary
  9. 9Mechanical, Packaging, and Orderable Information
    1. 9.1 Packaging Information

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発注情報

6.2.1 32-Bit CPU-Timers 0/1/2

There are three 32-bit CPU-timers on the F28044 device (CPU-TIMER0/1/2).

CPU-Timer 0 and CPU-Timer 1 can be used in user applications. Timer 2 is reserved for SYS/BIOS. These timers are different from the timers that are present in the ePWM modules.

NOTE

If the application is not using SYS/BIOS, then CPU-Timer 2 can be used in the application.
TMS320F28044 cputim_prs357.gifFigure 6-1 CPU-Timers

In the F28044 device, the timer interrupt signals (TINT0, TINT1, TINT2) are connected as shown in Figure 6-2.

TMS320F28044 intsig_prs357.gif
A. The timer registers are connected to the memory bus of the C28x processor.
B. The timing of the timers is synchronized to SYSCLKOUT of the processor clock.
Figure 6-2 CPU-Timer Interrupt Signals and Output Signal

The general operation of the timer is as follows: The 32-bit counter register "TIMH:TIM" is loaded with the value in the period register "PRDH:PRD". The counter register decrements at the SYSCLKOUT rate of the C28x. When the counter reaches 0, a timer interrupt output signal generates an interrupt pulse. The registers listed in Table 6-2 are used to configure the timers. For more information, see the TMS320x280x, 2801x, 2804x DSP System Control and Interrupts Reference Guide.

Table 6-2 CPU-Timers 0, 1, 2 Configuration and Control Registers

NAME ADDRESS SIZE (x16) DESCRIPTION
TIMER0TIM 0x0C00 1 CPU-Timer 0, Counter Register
TIMER0TIMH 0x0C01 1 CPU-Timer 0, Counter Register High
TIMER0PRD 0x0C02 1 CPU-Timer 0, Period Register
TIMER0PRDH 0x0C03 1 CPU-Timer 0, Period Register High
TIMER0TCR 0x0C04 1 CPU-Timer 0, Control Register
Reserved 0x0C05 1 Reserved
TIMER0TPR 0x0C06 1 CPU-Timer 0, Prescale Register
TIMER0TPRH 0x0C07 1 CPU-Timer 0, Prescale Register High
TIMER1TIM 0x0C08 1 CPU-Timer 1, Counter Register
TIMER1TIMH 0x0C09 1 CPU-Timer 1, Counter Register High
TIMER1PRD 0x0C0A 1 CPU-Timer 1, Period Register
TIMER1PRDH 0x0C0B 1 CPU-Timer 1, Period Register High
TIMER1TCR 0x0C0C 1 CPU-Timer 1, Control Register
Reserved 0x0C0D 1 Reserved
TIMER1TPR 0x0C0E 1 CPU-Timer 1, Prescale Register
TIMER1TPRH 0x0C0F 1 CPU-Timer 1, Prescale Register High
TIMER2TIM 0x0C10 1 CPU-Timer 2, Counter Register
TIMER2TIMH 0x0C11 1 CPU-Timer 2, Counter Register High
TIMER2PRD 0x0C12 1 CPU-Timer 2, Period Register
TIMER2PRDH 0x0C13 1 CPU-Timer 2, Period Register High
TIMER2TCR 0x0C14 1 CPU-Timer 2, Control Register
Reserved 0x0C15 1 Reserved
TIMER2TPR 0x0C16 1 CPU-Timer 2, Prescale Register
TIMER2TPRH 0x0C17 1 CPU-Timer 2, Prescale Register High
Reserved 0x0C18 –
0x0C3F		 40 Reserved