SLAAEG4B October   2023  – July 2025 MSPM0C1104 , MSPM0C1105 , MSPM0C1106 , MSPM0H3216 , MSPM0L1306

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 MSPM0C Hardware Design Check List
  5. 2 Power Supplies in MSPM0C 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
      1. 3.2.1 Power-On Reset (POR) Monitor
      2. 3.2.2 Brownout Reset (BOR) Monitor
      3. 3.2.3 POR and BOR Behavior During Supply Changes
  7. 4 Clock System
    1. 4.1 Internal Oscillators
      1. 4.1.1 Internal Low-Frequency Oscillator (LFOSC)
      2. 4.1.2 Internal System Oscillator (SYSOSC)
    2. 4.2 External Oscillators & External Clock Input
      1. 4.2.1 Low-Frequency Crystal Oscillator (LFXT)
      2. 4.2.2 LFCLK_IN (Digital Clock)
      3. 4.2.3 High-Frequency Crystal Oscillator (HFXT)
      4. 4.2.4 HFCLK_IN (Digital Clock)
    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
      1. 5.2.1 Standard XDS110
      2. 5.2.2 Lite XDS110 (MSPM0 LaunchPad™ kit)
  9. 6 Key Analog Peripherals
    1. 6.1 ADC Design Considerations
    2. 6.2 COMP and DAC 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 Open-Drain GPIOs Enable 5V Communication Without a Level Shifter
    4. 8.4 Communicate With 1.8V Devices 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
      1. 9.2.1 What is Ground Noise?
    3. 9.3 Traces, Vias, and Other PCB Components
    4. 9.4 How to Select Board Layers and Recommended Stack-up
  13. 10Bootloader
  14. 11Summary
  15. 12References
  16. 13Revision History

7.2 UART and LIN Resources and Design Considerations

The MSPM0C series MCU includes Universal Asynchronous Receiver-Transmitter (UART). MSPM0C1103 and MSPM0C1104 only support UART0, and MSPM0C1105 and MSPM0C1106 support UART0, UART1, UART2. As seen in Table 7-2, UART0 supports LIN, DALI, IrDA, ISO7816 Manchester Coding function.

Table 7-2 UART Features
UART Features UART0 (Extend) UART1, UART2 (Main)
Active in Stop and Standby Mode Yes Yes
Separate transmit and receive FIFOs Yes Yes
Support hardware flow control Yes Yes
Support 9-bit configuration Yes Yes
Support LIN mode Yes -
Support DALI Yes -
Support IrDA Yes -
Support ISO7816 Smart Card Yes -
Support Manchester coding Yes -
Table 7-3 MSPM0C UART Specifications
PARAMETERS TEST CONDITIONS MIN TYP MAX UNIT
fUART UART input clock frequency MSPM0C1103 and MSPM0C1104 24 MHz
MSPM0C1105 and MSPM0C1106 32
fBITCLK BITCLK clock frequency(equals baud rate in MBaud) MSPM0C1103 and MSPM0C1104 3 MHz
MSPM0C1105 and MSPM0C1106 4
tSP Pulse duration of spikes suppressed by input filter AGFSELx = 0 MSPM0C1103 and MSPM0C1104 11 35 ns
MSPM0C1105 and MSPM0C1106 6
AGFSELx = 1 14 35 ns
AGFSELx = 2 22 60 ns
AGFSELx = 3 35 90 ns

The MSPM0C1103 and MSPM0C1104 UART module can support up to 3MHz baud rate. The MSPM0C1105 and MSPM0C1106 UART module can support up to 4MHz baud rate. These baud rates can support almost all UART applications.

Local Interconnect Network (LIN) is a commonly used low-speed network interface that consists of a commander node communicating with multiple remote responder nodes. Only a single wire is required for communication and is commonly included in the vehicle wiring harness.

The TLIN1021A-Q1 transmitter supports data rates up to 20kbps. The transceiver controls the state of the LIN bus through the TXD pin and reports the state of the bus on the open-drain RXD output pin. The device has a current-limited wave-shaping driver to reduce electromagnetic emissions (EME).

The TLIN1021A-Q1 is designed to support 12V applications with a wide input voltage operating range. The device supports low-power sleep mode, as well as wake-up from low-power mode by wake over LIN, the WAKE pin, or the EN pin. The device allows for system-level reductions in battery current consumption by selectively enabling the various power supplies that can be present on a node through the TLIN1021A-Q1 INH output pin. Figure 7-1 shows a typical interface implemented using the TI TLIN1021A LIN transceiver.

Typical LIN TLIN1021A Transceiver Figure 7-1 Typical LIN TLIN1021A Transceiver

Only a single wire is required for communication and is commonly included in the vehicle wiring harness. Figure 7-2 and Figure 7-3 shows a typical interface implemented using the TI TLIN1021A LIN transceiver. For more details, see the device-specific TLIN1021 data sheet.

Typical LIN Application(Commander) with MSPM0C Figure 7-2 Typical LIN Application(Commander) with MSPM0C
Typical LIN Application (Responder) with MSPM0C Figure 7-3 Typical LIN Application (Responder) with MSPM0C