SPRSPB1 October   2025 F28377D-SEP

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
    1. 3.1 Functional Block Diagram
  5. 4 Device Comparison
    1. 4.1 Related Products
  6. 5 Pin Configuration and Functions
    1. 5.1 Pin Diagrams
    2. 5.2 Signal Descriptions
      1. 5.2.1 Signal Descriptions
    3. 5.3 Pins With Internal Pullup and Pulldown
    4. 5.4 Pin Multiplexing
      1. 5.4.1 GPIO Muxed Pins
      2. 5.4.2 Input X-BAR
      3. 5.4.3 Output X-BAR and ePWM X-BAR
      4. 5.4.4 USB Pin Muxing
      5. 5.4.5 High-Speed SPI Pin Muxing
    5. 5.5 Connections for Unused Pins
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Power Consumption Summary
      1. 6.4.1 Device Current Consumption at 200-MHz SYSCLK
      2. 6.4.2 Current Consumption Graphs
      3. 6.4.3 Reducing Current Consumption
    5. 6.5  Electrical Characteristics
    6. 6.6  Thermal Resistance Characteristics
      1. 6.6.1 PTP Package
    7. 6.7  Thermal Design Considerations
    8. 6.8  System
      1. 6.8.1  Power Sequencing
        1. 6.8.1.1 Signal Pin Requirements
        2. 6.8.1.2 VDDIO, VDDA, VDD3VFL, and VDDOSC Requirements
        3. 6.8.1.3 VDD Requirements
        4. 6.8.1.4 Supply Ramp Rate
          1. 6.8.1.4.1 Supply Ramp Rate
        5. 6.8.1.5 Supply Supervision
      2. 6.8.2  Reset Timing
        1. 6.8.2.1 Reset Sources
        2. 6.8.2.2 Reset Electrical Data and Timing
          1. 6.8.2.2.1 Reset ( XRS) Timing Requirements
          2. 6.8.2.2.2 Reset ( XRS) Switching Characteristics
      3. 6.8.3  Clock Specifications
        1. 6.8.3.1 Clock Sources
        2. 6.8.3.2 Clock Frequencies, Requirements, and Characteristics
          1. 6.8.3.2.1 Input Clock Frequency and Timing Requirements, PLL Lock Times
            1. 6.8.3.2.1.1 Input Clock Frequency
            2. 6.8.3.2.1.2 X1 Input Level Characteristics When Using an External Clock Source (Not a Crystal)
            3. 6.8.3.2.1.3 XTAL Oscillator Characteristics
            4. 6.8.3.2.1.4 X1 Timing Requirements
            5. 6.8.3.2.1.5 AUXCLKIN Timing Requirements
            6. 6.8.3.2.1.6 PLL Lock Times
          2. 6.8.3.2.2 Internal Clock Frequencies
            1. 6.8.3.2.2.1 Internal Clock Frequencies
          3. 6.8.3.2.3 Output Clock Frequency and Switching Characteristics
            1. 6.8.3.2.3.1 Output Clock Frequency
            2. 6.8.3.2.3.2 XCLKOUT Switching Characteristics (PLL Bypassed or Enabled)
        3. 6.8.3.3 Input Clocks and PLLs
        4. 6.8.3.4 XTAL Oscillator
          1. 6.8.3.4.1 Introduction
          2. 6.8.3.4.2 Overview
            1. 6.8.3.4.2.1 Electrical Oscillator
              1. 6.8.3.4.2.1.1 Modes of Operation
                1. 6.8.3.4.2.1.1.1 Crystal Mode of Operation
                2. 6.8.3.4.2.1.1.2 Single-Ended Mode of Operation
              2. 6.8.3.4.2.1.2 XTAL Output on XCLKOUT
            2. 6.8.3.4.2.2 Quartz Crystal
          3. 6.8.3.4.3 Functional Operation
            1. 6.8.3.4.3.1 ESR – Effective Series Resistance
            2. 6.8.3.4.3.2 Rneg – Negative Resistance
            3. 6.8.3.4.3.3 Start-up Time
            4. 6.8.3.4.3.4 DL – Drive Level
          4. 6.8.3.4.4 How to Choose a Crystal
          5. 6.8.3.4.5 Testing
          6. 6.8.3.4.6 Common Problems and Debug Tips
          7. 6.8.3.4.7 Crystal Oscillator Specifications
            1. 6.8.3.4.7.1 Crystal Oscillator Electrical Characteristics
            2. 6.8.3.4.7.2 Crystal Equivalent Series Resistance (ESR) Requirements
        5. 6.8.3.5 Internal Oscillators
          1. 6.8.3.5.1 Internal Oscillator Electrical Characteristics
      4. 6.8.4  Flash Parameters
        1. 6.8.4.1 Flash Parameters
      5. 6.8.5  RAM Specifications
      6. 6.8.6  ROM Specifications
      7. 6.8.7  Emulation/JTAG
        1. 6.8.7.1 JTAG Electrical Data and Timing
          1. 6.8.7.1.1 JTAG Timing Requirements
          2. 6.8.7.1.2 JTAG Switching Characteristics
      8. 6.8.8  GPIO Electrical Data and Timing
        1. 6.8.8.1 GPIO - Output Timing
          1. 6.8.8.1.1 General-Purpose Output Switching Characteristics
        2. 6.8.8.2 GPIO - Input Timing
          1. 6.8.8.2.1 General-Purpose Input Timing Requirements
        3. 6.8.8.3 Sampling Window Width for Input Signals
      9. 6.8.9  Interrupts
        1. 6.8.9.1 External Interrupt (XINT) Electrical Data and Timing
          1. 6.8.9.1.1 External Interrupt Timing Requirements
          2. 6.8.9.1.2 External Interrupt Switching Characteristics
      10. 6.8.10 Low-Power Modes
        1. 6.8.10.1 Clock-Gating Low-Power Modes
        2. 6.8.10.2 Power-Gating Low-Power Modes
        3. 6.8.10.3 Low-Power Mode Wakeup Timing
          1. 6.8.10.3.1 IDLE Mode Timing Requirements
          2. 6.8.10.3.2 IDLE Mode Switching Characteristics
          3. 6.8.10.3.3 STANDBY Mode Timing Requirements
          4. 6.8.10.3.4 STANDBY Mode Switching Characteristics
          5. 6.8.10.3.5 HALT Mode Timing Requirements
          6. 6.8.10.3.6 HALT Mode Switching Characteristics
          7. 6.8.10.3.7 HIBERNATE Mode Timing Requirements
          8. 6.8.10.3.8 HIBERNATE Mode Switching Characteristics
      11. 6.8.11 External Memory Interface (EMIF)
        1. 6.8.11.1 Asynchronous Memory Support
        2. 6.8.11.2 Synchronous DRAM Support
        3. 6.8.11.3 EMIF Electrical Data and Timing
          1. 6.8.11.3.1 Asynchronous RAM
            1. 6.8.11.3.1.1 EMIF Asynchronous Memory Timing Requirements
            2. 6.8.11.3.1.2 EMIF Asynchronous Memory Switching Characteristics
          2. 6.8.11.3.2 Synchronous RAM
            1. 6.8.11.3.2.1 EMIF Synchronous Memory Timing Requirements
            2. 6.8.11.3.2.2 EMIF Synchronous Memory Switching Characteristics
    9. 6.9  Analog Peripherals
      1. 6.9.1 Analog-to-Digital Converter (ADC)
        1. 6.9.1.1 ADC Configurability
          1. 6.9.1.1.1 Signal Mode
        2. 6.9.1.2 ADC Electrical Data and Timing
          1. 6.9.1.2.1 ADC Operating Conditions (16-Bit Differential Mode)
          2. 6.9.1.2.2 ADC Characteristics (16-Bit Differential Mode)
          3. 6.9.1.2.3 ADC Operating Conditions (12-Bit Single-Ended Mode)
          4. 6.9.1.2.4 ADC Characteristics (12-Bit Single-Ended Mode)
          5. 6.9.1.2.5 ADCEXTSOC Timing Requirements
          6. 6.9.1.2.6 ADC Input Models
            1. 6.9.1.2.6.1 Differential Input Model Parameters
            2. 6.9.1.2.6.2 Single-Ended Input Model Parameters
          7. 6.9.1.2.7 ADC Timing Diagrams
            1. 6.9.1.2.7.1 ADC Timings in 12-Bit Mode (SYSCLK Cycles)
            2. 6.9.1.2.7.2 ADC Timings in 16-Bit Mode
        3. 6.9.1.3 Temperature Sensor Electrical Data and Timing
          1. 6.9.1.3.1 Temperature Sensor Electrical Characteristics
      2. 6.9.2 Comparator Subsystem (CMPSS)
        1. 6.9.2.1 CMPSS Electrical Data and Timing
          1. 6.9.2.1.1 Comparator Electrical Characteristics
          2. 6.9.2.1.2 CMPSS DAC Static Electrical Characteristics
      3. 6.9.3 Buffered Digital-to-Analog Converter (DAC)
        1. 6.9.3.1 Buffered DAC Electrical Data and Timing
          1. 6.9.3.1.1 Buffered DAC Electrical Characteristics
        2. 6.9.3.2 CMPSS DAC Dynamic Error
    10. 6.10 Control Peripherals
      1. 6.10.1 Enhanced Capture (eCAP)
        1. 6.10.1.1 eCAP Electrical Data and Timing
          1. 6.10.1.1.1 eCAP Timing Requirement
          2. 6.10.1.1.2 eCAP Switching Characteristics
      2. 6.10.2 Enhanced Pulse Width Modulator (ePWM)
        1. 6.10.2.1 Control Peripherals Synchronization
        2. 6.10.2.2 ePWM Electrical Data and Timing
          1. 6.10.2.2.1 ePWM Timing Requirements
          2. 6.10.2.2.2 ePWM Switching Characteristics
          3. 6.10.2.2.3 Trip-Zone Input Timing
            1. 6.10.2.2.3.1 Trip-Zone Input Timing Requirements
        3. 6.10.2.3 External ADC Start-of-Conversion Electrical Data and Timing
          1. 6.10.2.3.1 External ADC Start-of-Conversion Switching Characteristics
      3. 6.10.3 Enhanced Quadrature Encoder Pulse (eQEP)
        1. 6.10.3.1 eQEP Electrical Data and Timing
          1. 6.10.3.1.1 eQEP Timing Requirements
          2. 6.10.3.1.2 eQEP Switching Characteristics
      4. 6.10.4 High-Resolution Pulse Width Modulator (HRPWM)
        1. 6.10.4.1 HRPWM Electrical Data and Timing
          1. 6.10.4.1.1 High-Resolution PWM Timing Requirements
          2. 6.10.4.1.2 High-Resolution PWM Characteristics
      5. 6.10.5 Sigma-Delta Filter Module (SDFM)
        1. 6.10.5.1 SDFM Electrical Data and Timing (Using ASYNC)
          1. 6.10.5.1.1 SDFM Timing Requirements When Using Asynchronous GPIO (ASYNC) Option
        2. 6.10.5.2 SDFM Electrical Data and Timing (Using 3-Sample GPIO Input Qualification)
          1. 6.10.5.2.1 SDFM Timing Requirements When Using GPIO Input Qualification (3-Sample Window) Option
    11. 6.11 Communications Peripherals
      1. 6.11.1 Controller Area Network (CAN)
      2. 6.11.2 Inter-Integrated Circuit (I2C)
        1. 6.11.2.1 I2C Electrical Data and Timing
          1. 6.11.2.1.1 I2C Timing Requirements
          2. 6.11.2.1.2 I2C Switching Characteristics
          3. 6.11.2.1.3 I2C Timing Diagram
      3. 6.11.3 Multichannel Buffered Serial Port (McBSP)
        1. 6.11.3.1 McBSP Electrical Data and Timing
          1. 6.11.3.1.1 McBSP Transmit and Receive Timing
            1. 6.11.3.1.1.1 McBSP Timing Requirements
            2. 6.11.3.1.1.2 McBSP Switching Characteristics
          2. 6.11.3.1.2 McBSP as SPI Master or Slave Timing
            1. 6.11.3.1.2.1 McBSP as SPI Master Timing Requirements
            2. 6.11.3.1.2.2 McBSP as SPI Master Switching Characteristics
            3. 6.11.3.1.2.3 McBSP as SPI Slave Timing Requirements
            4. 6.11.3.1.2.4 McBSP as SPI Slave Switching Characteristics
      4. 6.11.4 Serial Communications Interface (SCI)
      5. 6.11.5 Serial Peripheral Interface (SPI)
        1. 6.11.5.1 SPI Electrical Data and Timing
          1. 6.11.5.1.1 SPI Master Mode Timings
            1. 6.11.5.1.1.1 SPI Master Mode Timing Requirements
            2. 6.11.5.1.1.2 SPI Master Mode Switching Characteristics (Clock Phase = 0)
            3. 6.11.5.1.1.3 SPI Master Mode Switching Characteristics (Clock Phase = 1)
          2. 6.11.5.1.2 SPI Slave Mode Timings
            1. 6.11.5.1.2.1 SPI Slave Mode Timing Requirements
            2. 6.11.5.1.2.2 SPI Slave Mode Switching Characteristics
      6. 6.11.6 Universal Serial Bus (USB) Controller
        1. 6.11.6.1 USB Electrical Data and Timing
          1. 6.11.6.1.1 USB Input Ports DP and DM Timing Requirements
          2. 6.11.6.1.2 USB Output Ports DP and DM Switching Characteristics
      7. 6.11.7 Universal Parallel Port (uPP) Interface
        1. 6.11.7.1 uPP Electrical Data and Timing
          1. 6.11.7.1.1 uPP Timing Requirements
          2. 6.11.7.1.2 uPP Switching Characteristics
  8. 7 Detailed Description
    1. 7.1  Overview
    2. 7.2  Functional Block Diagram
    3. 7.3  Memory
      1. 7.3.1 C28x Memory Map
      2. 7.3.2 Flash Memory Map
      3. 7.3.3 EMIF Chip Select Memory Map
      4. 7.3.4 Peripheral Registers Memory Map
      5. 7.3.5 Memory Types
        1. 7.3.5.1 Dedicated RAM (Mx and Dx RAM)
        2. 7.3.5.2 Local Shared RAM (LSx RAM)
        3. 7.3.5.3 Global Shared RAM (GSx RAM)
        4. 7.3.5.4 CPU Message RAM (CPU MSGRAM)
        5. 7.3.5.5 CLA Message RAM (CLA MSGRAM)
    4. 7.4  Identification
    5. 7.5  Bus Architecture – Peripheral Connectivity
    6. 7.6  C28x Processor
      1. 7.6.1 Floating-Point Unit
      2. 7.6.2 Trigonometric Math Unit
      3. 7.6.3 Viterbi, Complex Math, and CRC Unit II (VCU-II)
    7. 7.7  Control Law Accelerator
    8. 7.8  Direct Memory Access
    9. 7.9  Interprocessor Communication Module
    10. 7.10 Boot ROM and Peripheral Booting
      1. 7.10.1 EMU Boot or Emulation Boot
      2. 7.10.2 WAIT Boot Mode
      3. 7.10.3 Get Mode
      4. 7.10.4 Peripheral Pins Used by Bootloaders
    11. 7.11 Dual Code Security Module
    12. 7.12 Timers
    13. 7.13 Nonmaskable Interrupt With Watchdog Timer (NMIWD)
    14. 7.14 Watchdog
  9. 8 Applications, Implementation, and Layout
    1. 8.1 Application and Implementation
    2. 8.2 Key Device Features
    3. 8.3 Application Information
      1. 8.3.1 Typical Application
        1. 8.3.1.1 Solar Micro Inverter
          1. 8.3.1.1.1 System Block Diagram
          2. 8.3.1.1.2 Solar Micro Inverter Resources
        2. 8.3.1.2 On-Board Charger (OBC)
          1. 8.3.1.2.1 System Block Diagram
          2. 8.3.1.2.2 OBC Resources
        3. 8.3.1.3 EV Charging Station Power Module
          1. 8.3.1.3.1 System Block Diagram
          2. 8.3.1.3.2 EV Charging Station Power Module Resources
  10. 9 Device and Documentation Support
    1. 9.1 Device and Development Support Tool Nomenclature
    2. 9.2 Markings
    3. 9.3 Tools and Software
    4. 9.4 Documentation Support
    5. 9.5 Support Resources
    6. 9.6 Trademarks
    7. 9.7 Electrostatic Discharge Caution
    8. 9.8 Export Control Notice
    9. 9.9 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Packaging Information

5.2.1 Signal Descriptions

Table 5-1 Signal Descriptions
TERMINAL I/O/Z(1) DESCRIPTION
NAME MUX POSITION PTP
PIN
NO.
ADC, DAC, AND COMPARATOR SIGNALS
VREFHIA 37 I ADC-A high reference. This voltage must be driven into the pin from external circuitry. Place at least a 1-µF capacitor on this pin for the 12-bit mode, or at least a 22-µF capacitor for the 16-bit mode. This capacitor should be placed as close to the device as possible between the VREFHIA and VREFLOA pins.
NOTE: Do not load this pin externally.
VREFHIB 53 I ADC-B high reference. This voltage must be driven into the pin from external circuitry. Place at least a 1-µF capacitor on this pin for the 12-bit mode, or at least a 22-µF capacitor for the 16-bit mode. This capacitor should be placed as close to the device as possible between the VREFHIB and VREFLOB pins.
NOTE: Do not load this pin externally.
VREFHIC 35 I ADC-C high reference. This voltage must be driven into the pin from external circuitry. Place at least a 1-µF capacitor on this pin for the 12-bit mode, or at least a 22-µF capacitor for the 16-bit mode. This capacitor should be placed as close to the device as possible between the VREFHIC and VREFLOC pins.
NOTE: Do not load this pin externally.
VREFHID 55 I ADC-D high reference. This voltage must be driven into the pin from external circuitry. Place at least a 1-µF capacitor on this pin for the 12-bit mode, or at least a 22-µF capacitor for the 16-bit mode. This capacitor should be placed as close to the device as possible between the VREFHID and VREFLOD pins.
NOTE: Do not load this pin externally.
VREFLOA 33 I ADC-A low reference
VREFLOB 50 I ADC-B low reference
VREFLOC 32 I ADC-C low reference
VREFLOD 51 I ADC-D low reference
ADCIN14 44 I Input 14 to all ADCs. This pin can be used as a general-purpose ADCIN pin or it can be used to calibrate all ADCs together (either single-ended or differential) from an external reference.
CMPIN4P I Comparator 4 positive input
ADCIN15 45 I Input 15 to all ADCs. This pin can be used as a general-purpose ADCIN pin or it can be used to calibrate all ADCs together (either single-ended or differential) from an external reference.
CMPIN4N I Comparator 4 negative input
ADCINA0 43 I ADC-A input 0. There is a 50-kΩ internal pulldown on this pin in both an ADC input or DAC output mode which cannot be disabled.
DACOUTA O DAC-A output
ADCINA1 42 I ADC-A input 1. There is a 50-kΩ internal pulldown on this pin in both an ADC input or DAC output mode which cannot be disabled.
DACOUTB O DAC-B output
ADCINA2 41 I ADC-A input 2
CMPIN1P I Comparator 1 positive input
ADCINA3 40 I ADC-A input 3
CMPIN1N I Comparator 1 negative input
ADCINA4 39 I ADC-A input 4
CMPIN2P I Comparator 2 positive input
ADCINA5 38 I ADC-A input 5
CMPIN2N I Comparator 2 negative input
ADCINB0 46 I ADC-B input 0. There is a 100-pF capacitor to VSSA on this pin in both ADC input or DAC reference mode which cannot be disabled. If this pin is being used as a reference for the on-chip DACs, place at least a 1-µF capacitor on this pin.
VDAC I Optional external reference voltage for on-chip DACs. There is a 100-pF capacitor to VSSA on this pin in both ADC input or DAC reference mode which cannot be disabled. If this pin is being used as a reference for the on-chip DACs, place at least a 1-µF capacitor on this pin.
ADCINB1 47 I ADC-B input 1. There is a 50-kΩ internal pulldown on this pin in both an ADC input or DAC output mode which cannot be disabled.
DACOUTC O DAC-C output
ADCINB2 48 I ADC-B input 2
CMPIN3P I Comparator 3 positive input
ADCINB3 49 I ADC-B input 3
CMPIN3N I Comparator 3 negative input
ADCINB4 – I ADC-B input 4
ADCINB5 – I ADC-B input 5
ADCINC2 31 I ADC-C input 2
CMPIN6P I Comparator 6 positive input
ADCINC3 30 I ADC-C input 3
CMPIN6N I Comparator 6 negative input
ADCINC4 29 I ADC-C input 4
CMPIN5P I Comparator 5 positive input
ADCINC5 – I ADC-C input 5
CMPIN5N I Comparator 5 negative input
ADCIND0 56 I ADC-D input 0
CMPIN7P I Comparator 7 positive input
ADCIND1 57 I ADC-D input 1
CMPIN7N I Comparator 7 negative input
ADCIND2 58 I ADC-D input 2
CMPIN8P I Comparator 8 positive input
ADCIND3 59 I ADC-D input 3
CMPIN8N I Comparator 8 negative input
ADCIND4 60 I ADC-D input 4
ADCIND5 – I ADC-D input 5
GPIO AND PERIPHERAL SIGNALS
GPIO0 0, 4, 8, 12 160 I/O General-purpose input/output 0
EPWM1A 1 O Enhanced PWM1 output A (HRPWM-capable)
SDAA 6 I/OD I2C-A data open-drain bidirectional port
GPIO1 0, 4, 8, 12 161 I/O General-purpose input/output 1
EPWM1B 1 O Enhanced PWM1 output B (HRPWM-capable)
MFSRB 3 I/O McBSP-B receive frame synch
SCLA 6 I/OD I2C-A clock open-drain bidirectional port
GPIO2 0, 4, 8, 12 162 I/O General-purpose input/output 2
EPWM2A 1 O Enhanced PWM2 output A (HRPWM-capable)
OUTPUTXBAR1 5 O Output 1 of the output XBAR
SDAB 6 I/OD I2C-B data open-drain bidirectional port
GPIO3 0, 4, 8, 12 163 I/O General-purpose input/output 3
EPWM2B 1 O Enhanced PWM2 output B (HRPWM-capable)
OUTPUTXBAR2 2 O Output 2 of the output XBAR
MCLKRB 3 I/O McBSP-B receive clock
OUTPUTXBAR2 5 O Output 2 of the output XBAR
SCLB 6 I/OD I2C-B clock open-drain bidirectional port
GPIO4 0, 4, 8, 12 164 I/O General-purpose input/output 4
EPWM3A 1 O Enhanced PWM3 output A (HRPWM-capable)
OUTPUTXBAR3 5 O Output 3 of the output XBAR
CANTXA 6 O CAN-A transmit
GPIO5 0, 4, 8, 12 165 I/O General-purpose input/output 5
EPWM3B 1 O Enhanced PWM3 output B (HRPWM-capable)
MFSRA 2 I/O McBSP-A receive frame synch
OUTPUTXBAR3 3 O Output 3 of the output XBAR
CANRXA 6 I CAN-A receive
GPIO6 0, 4, 8, 12 166 I/O General-purpose input/output 6
EPWM4A 1 O Enhanced PWM4 output A (HRPWM-capable)
OUTPUTXBAR4 2 O Output 4 of the output XBAR
EXTSYNCOUT 3 O External ePWM synch pulse output
EQEP3A 5 I Enhanced QEP3 input A
CANTXB 6 O CAN-B transmit
GPIO7 0, 4, 8, 12 167 I/O General-purpose input/output 7
EPWM4B 1 O Enhanced PWM4 output B (HRPWM-capable)
MCLKRA 2 I/O McBSP-A receive clock
OUTPUTXBAR5 3 O Output 5 of the output XBAR
EQEP3B 5 I Enhanced QEP3 input B
CANRXB 6 I CAN-B receive
GPIO8 0, 4, 8, 12 18 I/O General-purpose input/output 8
EPWM5A 1 O Enhanced PWM5 output A (HRPWM-capable)
CANTXB 2 O CAN-B transmit
ADCSOCAO 3 O ADC start-of-conversion A output for external ADC
EQEP3S 5 I/O Enhanced QEP3 strobe
SCITXDA 6 O SCI-A transmit data
GPIO9 0, 4, 8, 12 19 I/O General-purpose input/output 9
EPWM5B 1 O Enhanced PWM5 output B (HRPWM-capable)
SCITXDB 2 O SCI-B transmit data
OUTPUTXBAR6 3 O Output 6 of the output XBAR
EQEP3I 5 I/O Enhanced QEP3 index
SCIRXDA 6 I SCI-A receive data
GPIO10 0, 4, 8, 12 1 I/O General-purpose input/output 10
EPWM6A 1 O Enhanced PWM6 output A (HRPWM-capable)
CANRXB 2 I CAN-B receive
ADCSOCBO 3 O ADC start-of-conversion B output for external ADC
EQEP1A 5 I Enhanced QEP1 input A
SCITXDB 6 O SCI-B transmit data
UPP-WAIT 15 I/O Universal parallel port wait. Receiver asserts to request a pause in transfer.
GPIO11 0, 4, 8, 12 2 I/O General-purpose input/output 11
EPWM6B 1 O Enhanced PWM6 output B (HRPWM-capable)
SCIRXDB 2, 6 I SCI-B receive data
OUTPUTXBAR7 3 O Output 7 of the output XBAR
EQEP1B 5 I Enhanced QEP1 input B
UPP-START 15 I/O Universal parallel port start. Transmitter asserts at start of DMA line.
GPIO12 0, 4, 8, 12 4 I/O General-purpose input/output 12
EPWM7A 1 O Enhanced PWM7 output A (HRPWM-capable)
CANTXB 2 O CAN-B transmit
MDXB 3 O McBSP-B transmit serial data
EQEP1S 5 I/O Enhanced QEP1 strobe
SCITXDC 6 O SCI-C transmit data
UPP-ENA 15 I/O Universal parallel port enable. Transmitter asserts while data bus is active.
GPIO13 0, 4, 8, 12 5 I/O General-purpose input/output 13
EPWM7B 1 O Enhanced PWM7 output B (HRPWM-capable)
CANRXB 2 I CAN-B receive
MDRB 3 I McBSP-B receive serial data
EQEP1I 5 I/O Enhanced QEP1 index
SCIRXDC 6 I SCI-C receive data
UPP-D7 15 I/O Universal parallel port data line 7
GPIO14 0, 4, 8, 12 6 I/O General-purpose input/output 14
EPWM8A 1 O Enhanced PWM8 output A (HRPWM-capable)
SCITXDB 2 O SCI-B transmit data
MCLKXB 3 I/O McBSP-B transmit clock
OUTPUTXBAR3 6 O Output 3 of the output XBAR
UPP-D6 15 I/O Universal parallel port data line 6
GPIO15 0, 4, 8, 12 7 I/O General-purpose input/output 15
EPWM8B 1 O Enhanced PWM8 output B (HRPWM-capable)
SCIRXDB 2 I SCI-B receive data
MFSXB 3 I/O McBSP-B transmit frame synch
OUTPUTXBAR4 6 O Output 4 of the output XBAR
UPP-D5 15 I/O Universal parallel port data line 5
GPIO16 0, 4, 8, 12 8 I/O General-purpose input/output 16
SPISIMOA 1 I/O SPI-A slave in, master out
CANTXB 2 O CAN-B transmit
OUTPUTXBAR7 3 O Output 7 of the output XBAR
EPWM9A 5 O Enhanced PWM9 output A
SD1_D1 7 I Sigma-Delta 1 channel 1 data input
UPP-D4 15 I/O Universal parallel port data line 4
GPIO17 0, 4, 8, 12 9 I/O General-purpose input/output 17
SPISOMIA 1 I/O SPI-A slave out, master in
CANRXB 2 I CAN-B receive
OUTPUTXBAR8 3 O Output 8 of the output XBAR
EPWM9B 5 O Enhanced PWM9 output B
SD1_C1 7 I Sigma-Delta 1 channel 1 clock input
UPP-D3 15 I/O Universal parallel port data line 3
GPIO18 0, 4, 8, 12 10 I/O General-purpose input/output 18
SPICLKA 1 I/O SPI-A clock
SCITXDB 2 O SCI-B transmit data
CANRXA 3 I CAN-A receive
EPWM10A 5 O Enhanced PWM10 output A
SD1_D2 7 I Sigma-Delta 1 channel 2 data input
UPP-D2 15 I/O Universal parallel port data line 2
GPIO19 0, 4, 8, 12 12 I/O General-purpose input/output 19
SPISTEA 1 I/O SPI-A slave transmit enable
SCIRXDB 2 I SCI-B receive data
CANTXA 3 O CAN-A transmit
EPWM10B 5 O Enhanced PWM10 output B
SD1_C2 7 I Sigma-Delta 1 channel 2 clock input
UPP-D1 15 I/O Universal parallel port data line 1
GPIO20 0, 4, 8, 12 13 I/O General-purpose input/output 20
EQEP1A 1 I Enhanced QEP1 input A
MDXA 2 O McBSP-A transmit serial data
CANTXB 3 O CAN-B transmit
EPWM11A 5 O Enhanced PWM11 output A
SD1_D3 7 I Sigma-Delta 1 channel 3 data input
UPP-D0 15 I/O Universal parallel port data line 0
GPIO21 0, 4, 8, 12 14 I/O General-purpose input/output 21
EQEP1B 1 I Enhanced QEP1 input B
MDRA 2 I McBSP-A receive serial data
CANRXB 3 I CAN-B receive
EPWM11B 5 O Enhanced PWM11 output B
SD1_C3 7 I Sigma-Delta 1 channel 3 clock input
UPP-CLK 15 I/O Universal parallel port transmit clock
GPIO22 0, 4, 8, 12 22 I/O General-purpose input/output 22
EQEP1S 1 I/O Enhanced QEP1 strobe
MCLKXA 2 I/O McBSP-A transmit clock
SCITXDB 3 O SCI-B transmit data
EPWM12A 5 O Enhanced PWM12 output A
SPICLKB 6 I/O SPI-B clock
SD1_D4 7 I Sigma-Delta 1 channel 4 data input
GPIO23 0, 4, 8, 12 23 I/O General-purpose input/output 23
EQEP1I 1 I/O Enhanced QEP1 index
MFSXA 2 I/O McBSP-A transmit frame synch
SCIRXDB 3 I SCI-B receive data
EPWM12B 5 O Enhanced PWM12 output B
SPISTEB 6 I/O SPI-B slave transmit enable
SD1_C4 7 I Sigma-Delta 1 channel 4 clock input
GPIO24 0, 4, 8, 12 24 I/O General-purpose input/output 24
OUTPUTXBAR1 1 O Output 1 of the output XBAR
EQEP2A 2 I Enhanced QEP2 input A
MDXB 3 O McBSP-B transmit serial data
SPISIMOB 6 I/O SPI-B slave in, master out
SD2_D1 7 I Sigma-Delta 2 channel 1 data input
GPIO25 0, 4, 8, 12 25 I/O General-purpose input/output 25
OUTPUTXBAR2 1 O Output 2 of the output XBAR
EQEP2B 2 I Enhanced QEP2 input B
MDRB 3 I McBSP-B receive serial data
SPISOMIB 6 I/O SPI-B slave out, master in
SD2_C1 7 I Sigma-Delta 2 channel 1 clock input
GPIO26 0, 4, 8, 12 27 I/O General-purpose input/output 26
OUTPUTXBAR3 1 O Output 3 of the output XBAR
EQEP2I 2 I/O Enhanced QEP2 index
MCLKXB 3 I/O McBSP-B transmit clock
OUTPUTXBAR3 5 O Output 3 of the output XBAR
SPICLKB 6 I/O SPI-B clock
SD2_D2 7 I Sigma-Delta 2 channel 2 data input
GPIO27 0, 4, 8, 12 28 I/O General-purpose input/output 27
OUTPUTXBAR4 1 O Output 4 of the output XBAR
EQEP2S 2 I/O Enhanced QEP2 strobe
MFSXB 3 I/O McBSP-B transmit frame synch
OUTPUTXBAR4 5 O Output 4 of the output XBAR
SPISTEB 6 I/O SPI-B slave transmit enable
SD2_C2 7 I Sigma-Delta 2 channel 2 clock input
GPIO28 0, 4, 8, 12 64 I/O General-purpose input/output 28
SCIRXDA 1 I SCI-A receive data
EM1CS4 2 O External memory interface 1 chip select 4
OUTPUTXBAR5 5 O Output 5 of the output XBAR
EQEP3A 6 I Enhanced QEP3 input A
SD2_D3 7 I Sigma-Delta 2 channel 3 data input
GPIO29 0, 4, 8, 12 65 I/O General-purpose input/output 29
SCITXDA 1 O SCI-A transmit data
EM1SDCKE 2 O External memory interface 1 SDRAM clock enable
OUTPUTXBAR6 5 O Output 6 of the output XBAR
EQEP3B 6 I Enhanced QEP3 input B
SD2_C3 7 I Sigma-Delta 2 channel 3 clock input
GPIO30 0, 4, 8, 12 63 I/O General-purpose input/output 30
CANRXA 1 I CAN-A receive
EM1CLK 2 O External memory interface 1 clock
OUTPUTXBAR7 5 O Output 7 of the output XBAR
EQEP3S 6 I/O Enhanced QEP3 strobe
SD2_D4 7 I Sigma-Delta 2 channel 4 data input
GPIO31 0, 4, 8, 12 66 I/O General-purpose input/output 31
CANTXA 1 O CAN-A transmit
EM1WE 2 O External memory interface 1 write enable
OUTPUTXBAR8 5 O Output 8 of the output XBAR
EQEP3I 6 I/O Enhanced QEP3 index
SD2_C4 7 I Sigma-Delta 2 channel 4 clock input
GPIO32 0, 4, 8, 12 67 I/O General-purpose input/output 32
SDAA 1 I/OD I2C-A data open-drain bidirectional port
EM1CS0 2 O External memory interface 1 chip select 0
GPIO33 0, 4, 8, 12 69 I/O General-purpose input/output 33
SCLA 1 I/OD I2C-A clock open-drain bidirectional port
EM1RNW 2 O External memory interface 1 read not write
GPIO34 0, 4, 8, 12 70 I/O General-purpose input/output 34
OUTPUTXBAR1 1 O Output 1 of the output XBAR
EM1CS2 2 O External memory interface 1 chip select 2
SDAB 6 I/OD I2C-B data open-drain bidirectional port
GPIO35 0, 4, 8, 12 71 I/O General-purpose input/output 35
SCIRXDA 1 I SCI-A receive data
EM1CS3 2 O External memory interface 1 chip select 3
SCLB 6 I/OD I2C-B clock open-drain bidirectional port
GPIO36 0, 4, 8, 12 83 I/O General-purpose input/output 36
SCITXDA 1 O SCI-A transmit data
EM1WAIT 2 I External memory interface 1 Asynchronous SRAM WAIT
CANRXA 6 I CAN-A receive
GPIO37 0, 4, 8, 12 84 I/O General-purpose input/output 37
OUTPUTXBAR2 1 O Output 2 of the output XBAR
EM1OE 2 O External memory interface 1 output enable
CANTXA 6 O CAN-A transmit
GPIO38 0, 4, 8, 12 85 I/O General-purpose input/output 38
EM1A0 2 O External memory interface 1 address line 0
SCITXDC 5 O SCI-C transmit data
CANTXB 6 O CAN-B transmit
GPIO39 0, 4, 8, 12 86 I/O General-purpose input/output 39
EM1A1 2 O External memory interface 1 address line 1
SCIRXDC 5 I SCI-C receive data
CANRXB 6 I CAN-B receive
GPIO40 0, 4, 8, 12 87 I/O General-purpose input/output 40
EM1A2 2 O External memory interface 1 address line 2
SDAB 6 I/OD I2C-B data open-drain bidirectional port
GPIO41 0, 4, 8, 12 89 I/O General-purpose input/output 41. For applications using the Hibernate low-power mode, this pin serves as the GPIOHIBWAKE signal. For details, see the Low Power Modes section of the System Control chapter in the TMS320F2837xD Dual-Core Real-Time Microcontrollers Technical Reference Manual.
EM1A3 2 O External memory interface 1 address line 3
SCLB 6 I/OD I2C-B clock open-drain bidirectional port
GPIO42 0, 4, 8, 12 130 I/O General-purpose input/output 42
SDAA 6 I/OD I2C-A data open-drain bidirectional port
SCITXDA 15 O SCI-A transmit data
USB0DM Analog I/O USB PHY differential data
GPIO43 0, 4, 8, 12 131 I/O General-purpose input/output 43
SCLA 6 I/OD I2C-A clock open-drain bidirectional port
SCIRXDA 15 I SCI-A receive data
USB0DP Analog I/O USB PHY differential data
GPIO44 0, 4, 8, 12 113 I/O General-purpose input/output 44
EM1A4 2 O External memory interface 1 address line 4
GPIO45 0, 4, 8, 12 115 I/O General-purpose input/output 45
EM1A5 2 O External memory interface 1 address line 5
GPIO46 0, 4, 8, 12 128 I/O General-purpose input/output 46
EM1A6 2 O External memory interface 1 address line 6
SCIRXDD 6 I SCI-D receive data
GPIO47 0, 4, 8, 12 129 I/O General-purpose input/output 47
EM1A7 2 O External memory interface 1 address line 7
SCITXDD 6 O SCI-D transmit data
GPIO48 0, 4, 8, 12 90 I/O General-purpose input/output 48
OUTPUTXBAR3 1 O Output 3 of the output XBAR
EM1A8 2 O External memory interface 1 address line 8
SCITXDA 6 O SCI-A transmit data
SD1_D1 7 I Sigma-Delta 1 channel 1 data input
GPIO49 0, 4, 8, 12 93 I/O General-purpose input/output 49
OUTPUTXBAR4 1 O Output 4 of the output XBAR
EM1A9 2 O External memory interface 1 address line 9
SCIRXDA 6 I SCI-A receive data
SD1_C1 7 I Sigma-Delta 1 channel 1 clock input
GPIO50 0, 4, 8, 12 94 I/O General-purpose input/output 50
EQEP1A 1 I Enhanced QEP1 input A
EM1A10 2 O External memory interface 1 address line 10
SPISIMOC 6 I/O SPI-C slave in, master out
SD1_D2 7 I Sigma-Delta 1 channel 2 data input
GPIO51 0, 4, 8, 12 95 I/O General-purpose input/output 51
EQEP1B 1 I Enhanced QEP1 input B
EM1A11 2 O External memory interface 1 address line 11
SPISOMIC 6 I/O SPI-C slave out, master in
SD1_C2 7 I Sigma-Delta 1 channel 2 clock input
GPIO52 0, 4, 8, 12 96 I/O General-purpose input/output 52
EQEP1S 1 I/O Enhanced QEP1 strobe
EM1A12 2 O External memory interface 1 address line 12
SPICLKC 6 I/O SPI-C clock
SD1_D3 7 I Sigma-Delta 1 channel 3 data input
GPIO53 0, 4, 8, 12 97 I/O General-purpose input/output 53
EQEP1I 1 I/O Enhanced QEP1 index
EM1D31 2 I/O External memory interface 1 data line 31
EM2D15 3 I/O External memory interface 2 data line 15
SPISTEC 6 I/O SPI-C slave transmit enable
SD1_C3 7 I Sigma-Delta 1 channel 3 clock input
GPIO54 0, 4, 8, 12 98 I/O General-purpose input/output 54
SPISIMOA 1 I/O SPI-A slave in, master out
EM1D30 2 I/O External memory interface 1 data line 30
EM2D14 3 I/O External memory interface 2 data line 14
EQEP2A 5 I Enhanced QEP2 input A
SCITXDB 6 O SCI-B transmit data
SD1_D4 7 I Sigma-Delta 1 channel 4 data input
GPIO55 0, 4, 8, 12 100 I/O General-purpose input/output 55
SPISOMIA 1 I/O SPI-A slave out, master in
EM1D29 2 I/O External memory interface 1 data line 29
EM2D13 3 I/O External memory interface 2 data line 13
EQEP2B 5 I Enhanced QEP2 input B
SCIRXDB 6 I SCI-B receive data
SD1_C4 7 I Sigma-Delta 1 channel 4 clock input
GPIO56 0, 4, 8, 12 101 I/O General-purpose input/output 56
SPICLKA 1 I/O SPI-A clock
EM1D28 2 I/O External memory interface 1 data line 28
EM2D12 3 I/O External memory interface 2 data line 12
EQEP2S 5 I/O Enhanced QEP2 strobe
SCITXDC 6 O SCI-C transmit data
SD2_D1 7 I Sigma-Delta 2 channel 1 data input
GPIO57 0, 4, 8, 12 102 I/O General-purpose input/output 57
SPISTEA 1 I/O SPI-A slave transmit enable
EM1D27 2 I/O External memory interface 1 data line 27
EM2D11 3 I/O External memory interface 2 data line 11
EQEP2I 5 I/O Enhanced QEP2 index
SCIRXDC 6 I SCI-C receive data
SD2_C1 7 I Sigma-Delta 2 channel 1 clock input
GPIO58 0, 4, 8, 12 103 I/O General-purpose input/output 58
MCLKRA 1 I/O McBSP-A receive clock
EM1D26 2 I/O External memory interface 1 data line 26
EM2D10 3 I/O External memory interface 2 data line 10
OUTPUTXBAR1 5 O Output 1 of the output XBAR
SPICLKB 6 I/O SPI-B clock
SD2_D2 7 I Sigma-Delta 2 channel 2 data input
SPISIMOA 15 I/O SPI-A slave in, master out(2)
GPIO59 0, 4, 8, 12 104 I/O General-purpose input/output 59(3)
MFSRA 1 I/O McBSP-A receive frame synch
EM1D25 2 I/O External memory interface 1 data line 25
EM2D9 3 I/O External memory interface 2 data line 9
OUTPUTXBAR2 5 O Output 2 of the output XBAR
SPISTEB 6 I/O SPI-B slave transmit enable
SD2_C2 7 I Sigma-Delta 2 channel 2 clock input
SPISOMIA 15 I/O SPI-A slave out, master in(2)
GPIO60 0, 4, 8, 12 105 I/O General-purpose input/output 60
MCLKRB 1 I/O McBSP-B receive clock
EM1D24 2 I/O External memory interface 1 data line 24
EM2D8 3 I/O External memory interface 2 data line 8
OUTPUTXBAR3 5 O Output 3 of the output XBAR
SPISIMOB 6 I/O SPI-B slave in, master out
SD2_D3 7 I Sigma-Delta 2 channel 3 data input
SPICLKA 15 I/O SPI-A clock(2)
GPIO61 0, 4, 8, 12 107 I/O General-purpose input/output 61(3)
MFSRB 1 I/O McBSP-B receive frame synch
EM1D23 2 I/O External memory interface 1 data line 23
EM2D7 3 I/O External memory interface 2 data line 7
OUTPUTXBAR4 5 O Output 4 of the output XBAR
SPISOMIB 6 I/O SPI-B slave out, master in
SD2_C3 7 I Sigma-Delta 2 channel 3 clock input
SPISTEA 15 I/O SPI-A slave transmit enable(2)
GPIO62 0, 4, 8, 12 108 I/O General-purpose input/output 62
SCIRXDC 1 I SCI-C receive data
EM1D22 2 I/O External memory interface 1 data line 22
EM2D6 3 I/O External memory interface 2 data line 6
EQEP3A 5 I Enhanced QEP3 input A
CANRXA 6 I CAN-A receive
SD2_D4 7 I Sigma-Delta 2 channel 4 data input
GPIO63 0, 4, 8, 12 109 I/O General-purpose input/output 63
SCITXDC 1 O SCI-C transmit data
EM1D21 2 I/O External memory interface 1 data line 21
EM2D5 3 I/O External memory interface 2 data line 5
EQEP3B 5 I Enhanced QEP3 input B
CANTXA 6 O CAN-A transmit
SD2_C4 7 I Sigma-Delta 2 channel 4 clock input
SPISIMOB 15 I/O SPI-B slave in, master out(2)
GPIO64 0, 4, 8, 12 110 I/O General-purpose input/output 64(3)
EM1D20 2 I/O External memory interface 1 data line 20
EM2D4 3 I/O External memory interface 2 data line 4
EQEP3S 5 I/O Enhanced QEP3 strobe
SCIRXDA 6 I SCI-A receive data
SPISOMIB 15 I/O SPI-B slave out, master in(2)
GPIO65 0, 4, 8, 12 111 I/O General-purpose input/output 65
EM1D19 2 I/O External memory interface 1 data line 19
EM2D3 3 I/O External memory interface 2 data line 3
EQEP3I 5 I/O Enhanced QEP3 index
SCITXDA 6 O SCI-A transmit data
SPICLKB 15 I/O SPI-B clock(2)
GPIO66 0, 4, 8, 12 112 I/O General-purpose input/output 66(3)
EM1D18 2 I/O External memory interface 1 data line 18
EM2D2 3 I/O External memory interface 2 data line 2
SDAB 6 I/OD I2C-B data open-drain bidirectional port
SPISTEB 15 I/O SPI-B slave transmit enable(2)
GPIO67 0, 4, 8, 12 132 I/O General-purpose input/output 67
EM1D17 2 I/O External memory interface 1 data line 17
EM2D1 3 I/O External memory interface 2 data line 1
GPIO68 0, 4, 8, 12 133 I/O General-purpose input/output 68
EM1D16 2 I/O External memory interface 1 data line 16
EM2D0 3 I/O External memory interface 2 data line 0
GPIO69 0, 4, 8, 12 134 I/O General-purpose input/output 69
EM1D15 2 I/O External memory interface 1 data line 15
SCLB 6 I/OD I2C-B clock open-drain bidirectional port
SPISIMOC 15 I/O SPI-C slave in, master out(2)
GPIO70 0, 4, 8, 12 135 I/O General-purpose input/output 70(3)
EM1D14 2 I/O External memory interface 1 data line 14
CANRXA 5 I CAN-A receive
SCITXDB 6 O SCI-B transmit data
SPISOMIC 15 I/O SPI-C slave out, master in(2)
GPIO71 0, 4, 8, 12 136 I/O General-purpose input/output 71
EM1D13 2 I/O External memory interface 1 data line 13
CANTXA 5 O CAN-A transmit
SCIRXDB 6 I SCI-B receive data
SPICLKC 15 I/O SPI-C clock(2)
GPIO72 0, 4, 8, 12 139 I/O General-purpose input/output 72.(3) This is the factory default boot mode select pin 1.
EM1D12 2 I/O External memory interface 1 data line 12
CANTXB 5 O CAN-B transmit
SCITXDC 6 O SCI-C transmit data
SPISTEC 15 I/O SPI-C slave transmit enable(2)
GPIO73 0, 4, 8, 12 140 I/O General-purpose input/output 73
EM1D11 2 I/O External memory interface 1 data line 11
XCLKOUT 3 O/Z External clock output. This pin outputs a divided-down version of a chosen clock signal from within the device. The clock signal is chosen using the CLKSRCCTL3.XCLKOUTSEL bit field while the divide ratio is chosen using the XCLKOUTDIVSEL.XCLKOUTDIV bit field.
CANRXB 5 I CAN-B receive
SCIRXDC 6 I SCI-C receive
GPIO74 0, 4, 8, 12 141 I/O General-purpose input/output 74
EM1D10 2 I/O External memory interface 1 data line 10
GPIO75 0, 4, 8, 12 142 I/O General-purpose input/output 75
EM1D9 2 I/O External memory interface 1 data line 9
GPIO76 0, 4, 8, 12 143 I/O General-purpose input/output 76
EM1D8 2 I/O External memory interface 1 data line 8
SCITXDD 6 O SCI-D transmit data
GPIO77 0, 4, 8, 12 144 I/O General-purpose input/output 77
EM1D7 2 I/O External memory interface 1 data line 7
SCIRXDD 6 I SCI-D receive data
GPIO78 0, 4, 8, 12 145 I/O General-purpose input/output 78
EM1D6 2 I/O External memory interface 1 data line 6
EQEP2A 6 I Enhanced QEP2 input A
GPIO79 0, 4, 8, 12 146 I/O General-purpose input/output 79
EM1D5 2 I/O External memory interface 1 data line 5
EQEP2B 6 I Enhanced QEP2 input B
GPIO80 0, 4, 8, 12 148 I/O General-purpose input/output 80
EM1D4 2 I/O External memory interface 1 data line 4
EQEP2S 6 I/O Enhanced QEP2 strobe
GPIO81 0, 4, 8, 12 149 I/O General-purpose input/output 81
EM1D3 2 I/O External memory interface 1 data line 3
EQEP2I 6 I/O Enhanced QEP2 index
GPIO82 0, 4, 8, 12 150 I/O General-purpose input/output 82
EM1D2 2 I/O External memory interface 1 data line 2
GPIO83 0, 4, 8, 12 151 I/O General-purpose input/output 83
EM1D1 2 I/O External memory interface 1 data line 1
GPIO84 0, 4, 8, 12 154 I/O General-purpose input/output 84. This is the factory default boot mode select pin 0.
SCITXDA 5 O SCI-A transmit data
MDXB 6 O McBSP-B transmit serial data
MDXA 15 O McBSP-A transmit serial data
GPIO85 0, 4, 8, 12 155 I/O General-purpose input/output 85
EM1D0 2 I/O External memory interface 1 data line 0
SCIRXDA 5 I SCI-A receive data
MDRB 6 I McBSP-B receive serial data
MDRA 15 I McBSP-A receive serial data
GPIO86 0, 4, 8, 12 156 I/O General-purpose input/output 86
EM1A13 2 O External memory interface 1 address line 13
EM1CAS 3 O External memory interface 1 column address strobe
SCITXDB 5 O SCI-B transmit data
MCLKXB 6 I/O McBSP-B transmit clock
MCLKXA 15 I/O McBSP-A transmit clock
GPIO87 0, 4, 8, 12 157 I/O General-purpose input/output 87
EM1A14 2 O External memory interface 1 address line 14
EM1RAS 3 O External memory interface 1 row address strobe
SCIRXDB 5 I SCI-B receive data
MFSXB 6 I/O McBSP-B transmit frame synch
MFSXA 15 I/O McBSP-A transmit frame synch
GPIO88 0, 4, 8, 12 170 I/O General-purpose input/output 88
EM1A15 2 O External memory interface 1 address line 15
EM1DQM0 3 O External memory interface 1 Input/output mask for byte 0
GPIO89 0, 4, 8, 12 171 I/O General-purpose input/output 89
EM1A16 2 O External memory interface 1 address line 16
EM1DQM1 3 O External memory interface 1 Input/output mask for byte 1
SCITXDC 6 O SCI-C transmit data
GPIO90 0, 4, 8, 12 172 I/O General-purpose input/output 90
EM1A17 2 O External memory interface 1 address line 17
EM1DQM2 3 O External memory interface 1 Input/output mask for byte 2
SCIRXDC 6 I SCI-C receive data
GPIO91 0, 4, 8, 12 173 I/O General-purpose input/output 91
EM1A18 2 O External memory interface 1 address line 18
EM1DQM3 3 O External memory interface 1 Input/output mask for byte 3
SDAA 6 I/OD I2C-A data open-drain bidirectional port
GPIO92 0, 4, 8, 12 174 I/O General-purpose input/output 92
EM1A19 2 O External memory interface 1 address line 19
EM1BA1 3 O External memory interface 1 bank address 1
SCLA 6 I/OD I2C-A clock open-drain bidirectional port
GPIO93 0, 4, 8, 12 175 I/O General-purpose input/output 93
EM1BA0 3 O External memory interface 1 bank address 0
SCITXDD 6 O SCI-D transmit data
GPIO94 0, 4, 8, 12 176 I/O General-purpose input/output 94
SCIRXDD 6 I SCI-D receive data
GPIO95 0, 4, 8, 12 – I/O General-purpose input/output 95
GPIO96 0, 4, 8, 12 – I/O General-purpose input/output 96
EM2DQM1 3 O External memory interface 2 Input/output mask for byte 1
EQEP1A 5 I Enhanced QEP1 input A
GPIO97 0, 4, 8, 12 – I/O General-purpose input/output 97
EM2DQM0 3 O External memory interface 2 Input/output mask for byte 0
EQEP1B 5 I Enhanced QEP1 input B
GPIO98 0, 4, 8, 12 – I/O General-purpose input/output 98
EM2A0 3 O External memory interface 2 address line 0
EQEP1S 5 I/O Enhanced QEP1 strobe
GPIO99 0, 4, 8, 12 17 I/O General-purpose input/output 99
EM2A1 3 O External memory interface 2 address line 1
EQEP1I 5 I/O Enhanced QEP1 index
GPIO100 0, 4, 8, 12 – I/O General-purpose input/output 100
EM2A2 3 O External memory interface 2 address line 2
EQEP2A 5 I Enhanced QEP2 input A
SPISIMOC 6 I/O SPI-C slave in, master out
GPIO101 0, 4, 8, 12 – I/O General-purpose input/output 101
EM2A3 3 O External memory interface 2 address line 3
EQEP2B 5 I Enhanced QEP2 input B
SPISOMIC 6 I/O SPI-C slave out, master in
GPIO102 0, 4, 8, 12 – I/O General-purpose input/output 102
EM2A4 3 O External memory interface 2 address line 4
EQEP2S 5 I/O Enhanced QEP2 strobe
SPICLKC 6 I/O SPI-C clock
GPIO103 0, 4, 8, 12 – I/O General-purpose input/output 103
EM2A5 3 O External memory interface 2 address line 5
EQEP2I 5 I/O Enhanced QEP2 index
SPISTEC 6 I/O SPI-C slave transmit enable
GPIO104 0, 4, 8, 12 – I/O General-purpose input/output 104
SDAA 1 I/OD I2C-A data open-drain bidirectional port
EM2A6 3 O External memory interface 2 address line 6
EQEP3A 5 I Enhanced QEP3 input A
SCITXDD 6 O SCI-D transmit data
GPIO105 0, 4, 8, 12 – I/O General-purpose input/output 105
SCLA 1 I/OD I2C-A clock open-drain bidirectional port
EM2A7 3 O External memory interface 2 address line 7
EQEP3B 5 I Enhanced QEP3 input B
SCIRXDD 6 I SCI-D receive data
GPIO106 0, 4, 8, 12 – I/O General-purpose input/output 106
EM2A8 3 O External memory interface 2 address line 8
EQEP3S 5 I/O Enhanced QEP3 strobe
SCITXDC 6 O SCI-C transmit data
GPIO107 0, 4, 8, 12 – I/O General-purpose input/output 107
EM2A9 3 O External memory interface 2 address line 9
EQEP3I 5 I/O Enhanced QEP3 index
SCIRXDC 6 I SCI-C receive data
GPIO108 0, 4, 8, 12 – I/O General-purpose input/output 108
EM2A10 3 O External memory interface 2 address line 10
GPIO109 0, 4, 8, 12 – I/O General-purpose input/output 109
EM2A11 3 O External memory interface 2 address line 11
GPIO110 0, 4, 8, 12 – I/O General-purpose input/output 110
EM2WAIT 3 I External memory interface 2 Asynchronous SRAM WAIT
GPIO111 0, 4, 8, 12 – I/O General-purpose input/output 111
EM2BA0 3 O External memory interface 2 bank address 0
GPIO112 0, 4, 8, 12 – I/O General-purpose input/output 112
EM2BA1 3 O External memory interface 2 bank address 1
GPIO113 0, 4, 8, 12 – I/O General-purpose input/output 113
EM2CAS 3 O External memory interface 2 column address strobe
GPIO114 0, 4, 8, 12 – I/O General-purpose input/output 114
EM2RAS 3 O External memory interface 2 row address strobe
GPIO115 0, 4, 8, 12 – I/O General-purpose input/output 115
EM2CS0 3 O External memory interface 2 chip select 0
GPIO116 0, 4, 8, 12 – I/O General-purpose input/output 116
EM2CS2 3 O External memory interface 2 chip select 2
GPIO117 0, 4, 8, 12 – I/O General-purpose input/output 117
EM2SDCKE 3 O External memory interface 2 SDRAM clock enable
GPIO118 0, 4, 8, 12 – I/O General-purpose input/output 118
EM2CLK 3 O External memory interface 2 clock
GPIO119 0, 4, 8, 12 – I/O General-purpose input/output 119
EM2RNW 3 O External memory interface 2 read not write
GPIO120 0, 4, 8, 12 – I/O General-purpose input/output 120
EM2WE 3 O External memory interface 2 write enable
USB0PFLT 15 I/O USB external regulator power fault indicator
GPIO121 0, 4, 8, 12 – I/O General-purpose input/output 121
EM2OE 3 O External memory interface 2 output enable
USB0EPEN 15 I/O USB external regulator enable
GPIO122 0, 4, 8, 12 – I/O General-purpose input/output 122
SPISIMOC 6 I/O SPI-C slave in, master out
SD1_D1 7 I Sigma-Delta 1 channel 1 data input
GPIO123 0, 4, 8, 12 – I/O General-purpose input/output 123
SPISOMIC 6 I/O SPI-C slave out, master in
SD1_C1 7 I Sigma-Delta 1 channel 1 clock input
GPIO124 0, 4, 8, 12 – I/O General-purpose input/output 124
SPICLKC 6 I/O SPI-C clock
SD1_D2 7 I Sigma-Delta 1 channel 2 data input
GPIO125 0, 4, 8, 12 – I/O General-purpose input/output 125
SPISTEC 6 I/O SPI-C slave transmit enable
SD1_C2 7 I Sigma-Delta 1 channel 2 clock input
GPIO126 0, 4, 8, 12 – I/O General-purpose input/output 126
SD1_D3 7 I Sigma-Delta 1 channel 3 data input
GPIO127 0, 4, 8, 12 – I/O General-purpose input/output 127
SD1_C3 7 I Sigma-Delta 1 channel 3 clock input
GPIO128 0, 4, 8, 12 – I/O General-purpose input/output 128
SD1_D4 7 I Sigma-Delta 1 channel 4 data input
GPIO129 0, 4, 8, 12 – I/O General-purpose input/output 129
SD1_C4 7 I Sigma-Delta 1 channel 4 clock input
GPIO130 0, 4, 8, 12 – I/O General-purpose input/output 130
SD2_D1 7 I Sigma-Delta 2 channel 1 data input
GPIO131 0, 4, 8, 12 – I/O General-purpose input/output 131
SD2_C1 7 I Sigma-Delta 2 channel 1 clock input
GPIO132 0, 4, 8, 12 – I/O General-purpose input/output 132
SD2_D2 7 I Sigma-Delta 2 channel 2 data input
GPIO133/AUXCLKIN 0, 4, 8, 12 118 I/O General-purpose input/output 133. The AUXCLKIN function of this GPIO pin could be used to provide a single-ended 3.3-V level clock signal to the Auxiliary Phase-Locked Loop (AUXPLL), whose output is used for the USB module. The AUXCLKIN clock may also be used for the CAN module.
SD2_C2 7 I Sigma-Delta 2 channel 2 clock input
GPIO134 0, 4, 8, 12 – I/O General-purpose input/output 134
SD2_D3 7 I Sigma-Delta 2 channel 3 data input
GPIO135 0, 4, 8, 12 – I/O General-purpose input/output 135
SCITXDA 6 O SCI-A transmit data
SD2_C3 7 I Sigma-Delta 2 channel 3 clock input
GPIO136 0, 4, 8, 12 – I/O General-purpose input/output 136
SCIRXDA 6 I SCI-A receive data
SD2_D4 7 I Sigma-Delta 2 channel 4 data input
GPIO137 0, 4, 8, 12 – I/O General-purpose input/output 137
SCITXDB 6 O SCI-B transmit data
SD2_C4 7 I Sigma-Delta 2 channel 4 clock input
GPIO138 0, 4, 8, 12 – I/O General-purpose input/output 138
SCIRXDB 6 I SCI-B receive data
GPIO139 0, 4, 8, 12 – I/O General-purpose input/output 139
SCIRXDC 6 I SCI-C receive data
GPIO140 0, 4, 8, 12 – I/O General-purpose input/output 140
SCITXDC 6 O SCI-C transmit data
GPIO141 0, 4, 8, 12 – I/O General-purpose input/output 141
SCIRXDD 6 I SCI-D receive data
GPIO142 0, 4, 8, 12 – I/O General-purpose input/output 142
SCITXDD 6 O SCI-D transmit data
GPIO143 0, 4, 8, 12 – I/O General-purpose input/output 143
GPIO144 0, 4, 8, 12 – I/O General-purpose input/output 144
GPIO145 0, 4, 8, 12 – I/O General-purpose input/output 145
EPWM1A 1 O Enhanced PWM1 output A (HRPWM-capable)
GPIO146 0, 4, 8, 12 – I/O General-purpose input/output 146
EPWM1B 1 O Enhanced PWM1 output B (HRPWM-capable)
GPIO147 0, 4, 8, 12 – I/O General-purpose input/output 147
EPWM2A 1 O Enhanced PWM2 output A (HRPWM-capable)
GPIO148 0, 4, 8, 12 – I/O General-purpose input/output 148
EPWM2B 1 O Enhanced PWM2 output B (HRPWM-capable)
GPIO149 0, 4, 8, 12 – I/O General-purpose input/output 149
EPWM3A 1 O Enhanced PWM3 output A (HRPWM-capable)
GPIO150 0, 4, 8, 12 – I/O General-purpose input/output 150
EPWM3B 1 O Enhanced PWM3 output B (HRPWM-capable)
GPIO151 0, 4, 8, 12 – I/O General-purpose input/output 151
EPWM4A 1 O Enhanced PWM4 output A (HRPWM-capable)
GPIO152 0, 4, 8, 12 – I/O General-purpose input/output 152
EPWM4B 1 O Enhanced PWM4 output B (HRPWM-capable)
GPIO153 0, 4, 8, 12 – I/O General-purpose input/output 153
EPWM5A 1 O Enhanced PWM5 output A (HRPWM-capable)
GPIO154 0, 4, 8, 12 – I/O General-purpose input/output 154
EPWM5B 1 O Enhanced PWM5 output B (HRPWM-capable)
GPIO155 0, 4, 8, 12 – I/O General-purpose input/output 155
EPWM6A 1 O Enhanced PWM6 output A (HRPWM-capable)
GPIO156 0, 4, 8, 12 – I/O General-purpose input/output 156
EPWM6B 1 O Enhanced PWM6 output B (HRPWM-capable)
GPIO157 0, 4, 8, 12 – I/O General-purpose input/output 157
EPWM7A 1 O Enhanced PWM7 output A (HRPWM-capable)
GPIO158 0, 4, 8, 12 – I/O General-purpose input/output 158
EPWM7B 1 O Enhanced PWM7 output B (HRPWM-capable)
GPIO159 0, 4, 8, 12 – I/O General-purpose input/output 159
EPWM8A 1 O Enhanced PWM8 output A (HRPWM-capable)
GPIO160 0, 4, 8, 12 – I/O General-purpose input/output 160
EPWM8B 1 O Enhanced PWM8 output B (HRPWM-capable)
GPIO161 0, 4, 8, 12 – I/O General-purpose input/output 161
EPWM9A 1 O Enhanced PWM9 output A
GPIO162 0, 4, 8, 12 – I/O General-purpose input/output 162
EPWM9B 1 O Enhanced PWM9 output B
GPIO163 0, 4, 8, 12 – I/O General-purpose input/output 163
EPWM10A 1 O Enhanced PWM10 output A
GPIO164 0, 4, 8, 12 – I/O General-purpose input/output 164
EPWM10B 1 O Enhanced PWM10 output B
GPIO165 0, 4, 8, 12 – I/O General-purpose input/output 165
EPWM11A 1 O Enhanced PWM11 output A
GPIO166 0, 4, 8, 12 – I/O General-purpose input/output 166
EPWM11B 1 O Enhanced PWM11 output B
GPIO167 0, 4, 8, 12 – I/O General-purpose input/output 167
EPWM12A 1 O Enhanced PWM12 output A
GPIO168 0, 4, 8, 12 – I/O General-purpose input/output 168
EPWM12B 1 O Enhanced PWM12 output B
RESET
XRS 124 I/OD Device Reset (in) and Watchdog Reset (out). The devices have a built-in power-on reset (POR) circuit. During a power-on condition, this pin is driven low by the device. An external circuit may also drive this pin to assert a device reset. This pin is also driven low by the MCU when a watchdog reset or NMI watchdog reset occurs. During watchdog reset, the XRS pin is driven low for the watchdog reset duration of 512 OSCCLK cycles. A resistor with a value from 2.2 kΩ to 10 kΩ should be placed between XRS and VDDIO. If a capacitor is placed between XRS and VSS for noise filtering, it should be 100 nF or smaller. These values will allow the watchdog to properly drive the XRS pin to VOL within 512 OSCCLK cycles when the watchdog reset is asserted. The output buffer of this pin is an open drain with an internal pullup. If this pin is driven by an external device, it should be done using an open-drain device.
CLOCKS
X1 123 I On-chip crystal-oscillator input. To use this oscillator, a quartz crystal must be connected across X1 and X2. If this pin is not used, it must be tied to GND.
This pin can also be used to feed a single-ended 3.3-V level clock. In this case, X2 is a No Connect (NC).
X2 121 O On-chip crystal-oscillator output. A quartz crystal may be connected across X1 and X2. If X2 is not used, it must be left unconnected.
NO CONNECT
NC – No connect
JTAG
TCK 81 I JTAG test clock with internal pullup (see the Electrical Characteristics section)
TDI 77 I JTAG test data input (TDI) with internal pullup. TDI is clocked into the selected register (instruction or data) on a rising edge of TCK.
TDO 78 O/Z JTAG scan out, test data output (TDO). The contents of the selected register (instruction or data) are shifted out of TDO on the falling edge of TCK.(3)
TMS 80 I JTAG test-mode select (TMS) with internal pullup. This serial control input is clocked into the TAP controller on the rising edge of TCK.
TRST 79 I JTAG test reset with internal pulldown. TRST, when driven high, gives the scan system control of the operations of the device. If this signal is driven low, the device operates in its functional mode, and the test reset signals are ignored. NOTE: TRST must be maintained low at all times during normal device operation, so an external pulldown resistor is required on this pin for protection against noise spikes. The value of this resistor should be as small as possible, so long as the JTAG debug probe is still able to drive the TRST pin high. A resistor between 2.2-kΩ and 10-kΩ generally offers adequate protection. Since the value of the resistor is application-specific, TI recommends that each target board be validated for proper operation of the debug probe and the application. This pin has an internal 50-ns (nominal) glitch filter.
INTERNAL VOLTAGE REGULATOR CONTROL
VREGENZ 119 I Internal voltage regulator enable with internal pulldown. The internal VREG is not supported and must be disabled. Connect VREGENZ to VDDIO.
ANALOG, DIGITAL, AND I/O POWER
VDD 16 1.2-V digital logic power pins. There are two options for placing the decoupling capacitors.
  • Option 1 - Even Distribution: Distribute decoupling capacitance evenly across each VDD pin with a minimum total capacitance of approximately 20uF.
  • Option 2 - Bulk Capacitance: Place a 1uF capacitor near each VDD pin and place the remainder of the minimum total 20uF capacitance as bulk capacitance on the VDD net .
The exact value of the decoupling capacitance should be determined by your system voltage regulation solution.
21
61
76
117
126
137
153
158
169
–
–
–
–
VDD3VFL 72 3.3-V Flash power pin. Place a minimum 0.1-µF decoupling capacitor on each pin.
–
VDDA 36 3.3-V analog power pins. Place a minimum 2.2-µF decoupling capacitor to VSSA on each pin.
54
VDDIO 3 3.3-V digital I/O power pins. Place a minimum 0.1-µF decoupling capacitor on each pin. The exact value of the decoupling capacitance should be determined by your system voltage regulation solution.
11
15
20
26
62
68
75
82
88
91
99
106
114
116
127
138
147
152
159
168
–
–
–
–
–
–
–
VDDOSC 120 Power pins for the 3.3-V on-chip crystal oscillator (X1 and X2) and the two zero-pin internal oscillators (INTOSC). Place a 0.1-μF (minimum) decoupling capacitor on each pin.
125
VSS PWR
PAD
(177)		 Device ground. For Quad Flatpacks (QFPs), the PowerPAD on the bottom of the package must be soldered to the ground plane of the PCB.
VSSOSC 122 Crystal oscillator (X1 and X2) ground pin. When using an external crystal, do not connect this pin to the board ground. Instead, connect it to the ground reference of the external crystal oscillator circuit.
If an external crystal is not used, this pin may be connected to the board ground.
–
VSSA 34 Analog ground
52
–
–
–
SPECIAL FUNCTIONS
ERRORSTS 92 O Error status output. This pin has an internal pulldown.
TEST PINS
FLT1 73 I/O Flash test pin 1. Reserved for TI. Must be left unconnected.
FLT2 74 I/O Flash test pin 2. Reserved for TI. Must be left unconnected.
(1) I = Input, O = Output, OD = Open Drain, Z = High Impedance
(2) High-Speed SPI-enabled GPIO mux option. This pin mux option is required when using the SPI in High-Speed Mode (HS_MODE = 1 in SPICCR). This mux option is still available when not using the SPI in High-Speed Mode (HS_MODE = 0 in SPICCR).
(3) This pin has output impedance that can be as low as 22 Ω. This output could have fast edges and ringing depending on the system PCB characteristics. If this is a concern, the user should take precautions such as adding a 39Ω (10% tolerance) series termination resistor or implement some other termination scheme. It is also recommended that a system-level signal integrity analysis be performed with the provided IBIS models. The termination is not required if this pin is used for input function.