SDAA018 December   2025 MSPM0H3216

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 MSPM0H Hardware Design Check List
  5. 2 Power Supplies in MSPM0H Devices
    1. 2.1 Digital Power Supply
    2. 2.2 Analog Power Supply
    3. 2.3 Built-in Power Supply and Voltage Reference
    4. 2.4 Recommended Decoupling Circuit for Power Supply
  6. 3 Reset and Power Supply Supervisor
    1. 3.1 Digital Power Supply
    2. 3.2 Power Supply Supervisor
  7. 4 Clock System
    1. 4.1 Internal Oscillators
    2. 4.2 External Oscillators
    3. 4.3 External Clock Output (CLK_OUT)
    4. 4.4 Frequency Clock Counter (FCC)
  8. 5 Debugger
    1. 5.1 Debug Port Pins and Pinout
    2. 5.2 Debug Port Connection With Standard JTAG Connector
  9. 6 Key Analog Peripherals
    1. 6.1 ADC Design Considerations
  10. 7 Key Digital Peripherals
    1. 7.1 Timer Resources and Design Considerations
    2. 7.2 UART and LIN Resources and Design Considerations
    3. 7.3 I2C and SPI Design Considerations
  11. 8 GPIOs
    1. 8.1 GPIO Output Switching Speed and Load Capacitance
    2. 8.2 GPIO Current Sink and Source
    3. 8.3 High-Speed GPIOs (HSIO)
    4. 8.4 Communicate With a 1.8V/3.3V Device Without a Level Shifter
    5. 8.5 Unused Pins Connection
  12. 9 Layout Guides
    1. 9.1 Power Supply Layout
    2. 9.2 Considerations for Ground Layout
    3. 9.3 Traces, Vias, and Other PCB Components
    4. 9.4 How to Select Board Layers and Recommended Stack-up
  13. 10Summary
  14. 11References

4.3 External Clock Output (CLK_OUT)

A clock output unit can send digital clocks from the device to external circuits or to the frequency clock counter. This feature is useful for clocking external circuitry such as an external ADC that does not have a clock source. The clock output unit has a flexible set of sources to select, and includes a programmable divider.

MSPM0H External Clock OutputFigure 4-4 MSPM0H External Clock Output

Available clock sources for CLK_OUT:

  • HFCLK
  • SYSOSC
  • ULPCLK
  • MFCLK
  • LFCLK

The selected clock source can be divided by 1, 2, 4, 6, 8, 10, 12, 14, or 16 before being output to the pin or to the frequency clock counter.