SLAAE56B November   2022  – August 2025 MSPM0G1105 , MSPM0G1106 , MSPM0G1107 , MSPM0G1505 , MSPM0G1506 , MSPM0G1507 , MSPM0G3105 , MSPM0G3106 , MSPM0G3107 , MSPM0G3505 , MSPM0G3506 , MSPM0G3507 , MSPM0H3216 , MSPM0L1105 , MSPM0L1106 , MSPM0L1227 , MSPM0L1227-Q1 , MSPM0L1228 , MSPM0L1228-Q1 , MSPM0L1303 , MSPM0L1304 , MSPM0L1304-Q1 , MSPM0L1305 , MSPM0L1305-Q1 , MSPM0L1306 , MSPM0L1306-Q1 , MSPM0L1343 , MSPM0L1344 , MSPM0L1345 , MSPM0L1346 , MSPM0L2227 , MSPM0L2227-Q1 , MSPM0L2228 , MSPM0L2228-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1MSPM0 Portfolio Overview
    1. 1.1 Introduction
    2. 1.2 Portfolio Comparison of STM32 MCUs to MSPM0 MCUs
    3. 1.3 Pin to Pin Comparison of STM32 MCUs to MSPM0 MCUs
  5. 2Ecosystem and Migration
    1. 2.1 Software Ecosystem Comparison
      1. 2.1.1 MSPM0 Software Development Kit (MSPM0 SDK)
      2. 2.1.2 CubeIDE vs Code Composer Studio IDE (CCS)
      3. 2.1.3 CubeMX vs SysConfig
    2. 2.2 Hardware Ecosystem
    3. 2.3 Debug Tools
    4. 2.4 Migration Process
    5. 2.5 Migration and Porting Example
  6. 3Core Architecture Comparison
    1. 3.1 CPU
    2. 3.2 Embedded Memory Comparison
      1. 3.2.1 Flash Features
      2. 3.2.2 Flash Organization
      3. 3.2.3 Embedded SRAM
    3. 3.3 Power Up and Reset Summary and Comparison
    4. 3.4 Clocks Summary and Comparison
    5. 3.5 MSPM0 Operating Modes Summary and Comparison
    6. 3.6 Interrupt and Events Comparison
    7. 3.7 Debug and Programming Comparison
  7. 4Digital Peripheral Comparison
    1. 4.1 General-Purpose I/O (GPIO, IOMUX)
    2. 4.2 Universal Asynchronous Receiver-Transmitter (UART)
    3. 4.3 Serial Peripheral Interface (SPI)
    4. 4.4 I2C
    5. 4.5 Timers (TIMGx, TIMAx)
    6. 4.6 Windowed Watchdog Timer (WWDT)
    7. 4.7 Real-Time Clock (RTC)
  8. 5Analog Peripheral Comparison
    1. 5.1 Analog-to-Digital Converter (ADC)
    2. 5.2 Comparator (COMP)
    3. 5.3 Digital-to-Analog Converter (DAC)
    4. 5.4 Operational Amplifier (OPA)
    5. 5.5 Voltage References (VREF)
  9. 6Summary
  10. 7References
  11. 8Revision History

3.7 Debug and Programming Comparison

The Arm SWD 2-wire JTAG port is the main debug and programming interface for both MSPM0 and STM32G0 devices. This interface is typically used during application development, and during production programming. Table 3-11 compares the features between the two device families. For additional information about security features of the MSPM0 debug interface, see the Cybersecurity Enablers in MSPM0 MCUs application note.

Table 3-11 Arm SWD JTAG Feature Comparison
STM32G0 MSPM0
Debug port Arm SWD port (2-wire) Arm SWD port (2-wire)
Break Point Unit (BPU) 4 hardware breakpoints 4 hardware breakpoints
Data Watch Unit (DWT) 2 watchpoints 2 watchpoints
Micro-Trace Buffer (MTB) No MTB support with 4 trace packets(1)
Low-power debug support Yes Yes
EnergyTrace support No EnergyTrace+ support (CPU states with power profiling)
Peripheral run support during debug Yes Yes
Debug interface locking Can temporarily block debug read access Can permanently disable debug capabilities, or can lock with password
(1) MSPM0Gxxxx devices only

Bootstrap Loader (BSL) Programming Options

The bootstrap loader (BSL) programming interface is an alternative programming interface to the Arm SWD. This interface offers programming capabilities only, and typically is utilized through a standard embedded communication interface. This allows for firmware updates through existing connections to other embedded devices in system or external ports. Although programming updates are the main purpose of this interface, the updates can also be utilized for initial production programming as well. Table 3-12 shows a comparison of the different options and features between MSPM0 and STM32G0 device families.

Table 3-12 BSL Feature Comparison
BSL Features STM32G0 MSPM0
BSL started on blank device Yes Yes
Auto detection of programming interface Yes Yes
Security Memory security and access restriction options Secure boot options; CRC protections
Customizable No Yes, configurable invoke pin and plug-in feature
Invoke methods Pattern(1) involving up to 2 pins and device register settings at RESET, SW entry 1 pin high at BOOTRST, SW entry
Interfaces Supported
UART Yes Yes
I2C Yes Yes
SPI Yes(2) Custom plug-in needed
CAN Yes(2) Plug-in planned(2)
USB Yes(2) No MSPM0 device with USB capability at this time.
(1) Pattern option availability is device dependent.
(2) Only on select devices