SPRUIZ2 july   2023 TMS320F28384D , TMS320F28384D-Q1 , TMS320F28384S , TMS320F28384S-Q1 , TMS320F28386D , TMS320F28386D-Q1 , TMS320F28386S , TMS320F28386S-Q1 , TMS320F28388D , TMS320F28388S , TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Feature Differences Between F2838x and F28P65x
    1. 1.1 F2838x and F28P65x Feature Comparison
  5. 2PCB Hardware Changes
    1. 2.1 PCB Hardware Changes for the 176-Pin PTP Package
    2. 2.2 Use of Existing 176-Pin F2838x PCB Design
      1.      9
      2. 2.2.1 JTAG TRSTn No-Connect
      3. 2.2.2 GPIO Input Buffer Control Register
      4. 2.2.3 176-Pin GPIO Pin/Multiplex and ADCD Considerations
        1. 2.2.3.1 176-Pin PTP Pins With Different GPIO Assignment
        2. 2.2.3.2 ADCD Channel Migration
    3. 2.3 176-Pin PTP New PCB Design
    4. 2.4 337-BGA ZWT Application to 256-BGA ZEJ or 169-BGA NMR
  6. 3Feature Differences for System Consideration
    1. 3.1 New Features in F28P65x
      1. 3.1.1  Lock-step Compare Module (LCM)
      2. 3.1.2  Expanded Analog Channels
      3. 3.1.3  Firmware Update (FWU)
      4. 3.1.4  Flexible GPIO and Digital Input Pins
      5. 3.1.5  New ADC Features
      6. 3.1.6  New EPWM Features
      7. 3.1.7  New CMPSS Features
      8. 3.1.8  ADC Hardware Redundancy Safety Checker
      9. 3.1.9  Flexible Memory Sharing between CPU Subsystems
      10. 3.1.10 Increased RAM Program Memory on CLA
    2. 3.2 Communication Module Changes
    3. 3.3 Control Module Changes
    4. 3.4 Analog Module Differences
    5. 3.5 Other Device Changes
      1. 3.5.1 PIE Channel Mapping
        1. 3.5.1.1 F2838x vs F28P65x PIE Channel Mapping Comparison
      2. 3.5.2 Bootrom
      3. 3.5.3 CLB and Motor Control Libraries
      4. 3.5.4 ERAD
      5. 3.5.5 AGPIO Filter
    6. 3.6 Power Management
      1. 3.6.1 VREGENZ
      2. 3.6.2 LDO/VREG
      3. 3.6.3 POR/BOR
      4. 3.6.4 Power Consumption
    7. 3.7 Memory Module Changes
    8. 3.8 GPIO Multiplexing Changes
      1. 3.8.1 F2838x vs F28P65x GPIO Mux Comparison
    9. 3.9 Analog Multiplexing Changes
      1. 3.9.1 F2838x_176PTP vs F28P65x_176PTP Analog Connections Comparison
  7. 4Application Code Migration From F2838x to F28P65x
    1. 4.1 C2000Ware Header Files
    2. 4.2 Linker Command Files
    3. 4.3 C2000Ware Examples
  8. 5References

3.6.1 VREGENZ

F28P65x supports both external and internal VREG mode which is selectable with VREGENZ pin. F2838x only supports external VREG and does not have a VREGENZ pin. Compared to other C28x devices that have VREGENZ pins, F28P65x VREGENZ has a pull up high resistor making the default power mode operation to be external VREG while past devices have pull down resistor on VREGENZ where the default operation in internal VREG mode.