SLAAEG4 October   2023 MSPM0C1104 , 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 Clock Input (xFCLK_IN)
      1. 4.2.1 LFCLK_IN
      2. 4.2.2 HFCLK_IN
    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
  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 5-V Communication Without a Level Shifter
    4. 8.4 Communicate With 1.8-V 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. 10References

7.2 UART and LIN Resources and Design Considerations

The MSPM0C series MCU includes Universal Asynchronous Receiver-Transmitter (UART). As seen in Table 7-2, UART0 supports LIN, DALI, IrDA, ISO7816 Manchester Coding function.

Table 7-2 UART Features
UART Features UART0 (Extend)
Active in Stop and Standby Mode Yes
Separate transmit and receive FIFOs Yes
Support hardware flow control Yes
Support 9-bit configuration 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 24 MHz
fBITCLK BITCLK clock frequency(equals baud rate in MBaud) 3 MHz
tSP Pulse duration of spikes suppressed by input filter AGFSELx = 0 6 TODO ns
AGFSELx = 1 14 35 ns
AGFSELx = 2 22 60 ns
AGFSELx = 3 35 90 ns

The MSPM0C UART module can support up to 3-MHz baud date, this 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 20 kbps. The transceiver controls the state of the LIN bus through the TXD pin and reports the state of the bus on its 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 12-V applications with a wide input voltage operating range. The device supports low-power sleep mode, as well as wake-up from low-power mode via 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.

GUID-47B4E133-828C-4BE2-A98C-E981172453E9-low.png 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.

GUID-9DA5373A-D8AD-4099-A979-F1AC07E519E5-low.png Figure 7-2 Typical LIN Application(Commander) with MSPM0C
GUID-79197036-5A6E-4175-A6F9-CEC9E18FF0E9-low.png Figure 7-3 Typical LIN Application(Responder) with MSPM0C