ZHCSF32E February   2016  – December 2019 MSP430FR2310 , MSP430FR2311

PRODUCTION DATA.  

  1. 1器件概述
    1. 1.1 特性
    2. 1.2 应用
    3. 1.3 说明
    4. 1.4 功能框图
  2. 2修订历史记录
  3. 3Device Comparison
    1. 3.1 Related Products
  4. 4Terminal Configuration and Functions
    1. 4.1 Pin Diagrams
    2. 4.2 Pin Attributes
    3. 4.3 Signal Descriptions
    4. 4.4 Pin Multiplexing
    5. 4.5 Buffer Type
    6. 4.6 Connection of Unused Pins
  5. 5Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Active Mode Supply Current Into VCC Excluding External Current
    5. 5.5  Active Mode Supply Current Per MHz
    6. 5.6  Low-Power Mode LPM0 Supply Currents Into VCC Excluding External Current
    7. 5.7  Low-Power Mode LPM3 and LPM4 Supply Currents (Into VCC) Excluding External Current
    8. 5.8  Low-Power Mode LPMx.5 Supply Currents (Into VCC) Excluding External Current
    9. 5.9  Production Distribution of LPM Supply Currents
    10. 5.10 Typical Characteristics – Current Consumption Per Module
    11. 5.11 Thermal Resistance Characteristics
    12. 5.12 Timing and Switching Characteristics
      1. 5.12.1  Power Supply Sequencing
        1. Table 5-1 PMM, SVS and BOR
      2. 5.12.2  Reset Timing
        1. Table 5-2 Wake-up Times From Low-Power Modes and Reset
      3. 5.12.3  Clock Specifications
        1. Table 5-3 XT1 Crystal Oscillator (Low Frequency)
        2. Table 5-4 XT1 Crystal Oscillator (High Frequency)
        3. Table 5-5 DCO FLL
        4. Table 5-6 DCO Frequency
        5. Table 5-7 REFO
        6. Table 5-8 Internal Very-Low-Power Low-Frequency Oscillator (VLO)
        7. Table 5-9 Module Oscillator (MODOSC)
      4. 5.12.4  Digital I/Os
        1. Table 5-10 Digital Inputs
        2. Table 5-11 Digital Outputs
        3. 5.12.4.1   Digital I/O Typical Characteristics
      5. 5.12.5  VREF+ Built-in Reference
        1. Table 5-12 VREF+
      6. 5.12.6  Timer_B
        1. Table 5-13 Timer_B
      7. 5.12.7  eUSCI
        1. Table 5-14 eUSCI (UART Mode) Clock Frequency
        2. Table 5-15 eUSCI (UART Mode) Switching Characteristics
        3. Table 5-16 eUSCI (SPI Master Mode) Clock Frequency
        4. Table 5-17 eUSCI (SPI Master Mode) Switching Characteristics
        5. Table 5-18 eUSCI (SPI Slave Mode) Switching Characteristics
        6. Table 5-19 eUSCI (I2C Mode) Switching Characteristics
      8. 5.12.8  ADC
        1. Table 5-20 ADC, Power Supply and Input Range Conditions
        2. Table 5-21 ADC, 10-Bit Timing Parameters
        3. Table 5-22 ADC, 10-Bit Linearity Parameters
      9. 5.12.9  Enhanced Comparator (eCOMP)
        1. Table 5-23 eCOMP0
      10. 5.12.10 Smart Analog Combo (SAC)
        1. Table 5-24 SAC0 (SAC-L1, OA)
      11. 5.12.11 Transimpedance Amplifier (TIA)
        1. Table 5-25 TIA0
      12. 5.12.12 FRAM
        1. Table 5-26 FRAM
      13. 5.12.13 Emulation and Debug
        1. Table 5-27 JTAG, Spy-Bi-Wire Interface
        2. Table 5-28 JTAG, 4-Wire Interface
  6. 6Detailed Description
    1. 6.1  Overview
    2. 6.2  CPU
    3. 6.3  Operating Modes
    4. 6.4  Interrupt Vector Addresses
    5. 6.5  Memory Organization
    6. 6.6  Bootloader (BSL)
    7. 6.7  JTAG Standard Interface
    8. 6.8  Spy-Bi-Wire Interface (SBW)
    9. 6.9  FRAM
    10. 6.10 Memory Protection
    11. 6.11 Peripherals
      1. 6.11.1  Power-Management Module (PMM) and On-chip Reference Voltages
      2. 6.11.2  Clock System (CS) and Clock Distribution
      3. 6.11.3  General-Purpose Input/Output Port (I/O)
      4. 6.11.4  Watchdog Timer (WDT)
      5. 6.11.5  System Module (SYS)
      6. 6.11.6  Cyclic Redundancy Check (CRC)
      7. 6.11.7  Enhanced Universal Serial Communication Interface (eUSCI_A0, eUSCI_B0)
      8. 6.11.8  Timers (Timer0_B3, Timer1_B3)
      9. 6.11.9  Backup Memory (BAKMEM)
      10. 6.11.10 Real-Time Clock (RTC) Counter
      11. 6.11.11 10-Bit Analog-to-Digital Converter (ADC)
      12. 6.11.12 eCOMP0
      13. 6.11.13 SAC0
      14. 6.11.14 TIA0
      15. 6.11.15 eCOMP0, SAC0, TIA0, and ADC in SOC Interconnection
      16. 6.11.16 Embedded Emulation Module (EEM)
      17. 6.11.17 Peripheral File Map
    12. 6.12 Input/Output Diagrams
      1. 6.12.1 Port P1 Input/Output With Schmitt Trigger
      2. 6.12.2 Port P2 Input/Output With Schmitt Trigger
    13. 6.13 Device Descriptors (TLV)
    14. 6.14 Identification
      1. 6.14.1 Revision Identification
      2. 6.14.2 Device Identification
      3. 6.14.3 JTAG Identification
  7. 7Applications, Implementation, and Layout
    1. 7.1 Device Connection and Layout Fundamentals
      1. 7.1.1 Power Supply Decoupling and Bulk Capacitors
      2. 7.1.2 External Oscillator
      3. 7.1.3 JTAG
      4. 7.1.4 Reset
      5. 7.1.5 Unused Pins
      6. 7.1.6 General Layout Recommendations
      7. 7.1.7 Do's and Don'ts
    2. 7.2 Peripheral- and Interface-Specific Design Information
      1. 7.2.1 ADC Peripheral
        1. 7.2.1.1 Partial Schematic
        2. 7.2.1.2 Design Requirements
        3. 7.2.1.3 Layout Guidelines
    3. 7.3 Typical Applications
  8. 8器件和文档支持
    1. 8.1 使用入门
    2. 8.2 器件命名规则
    3. 8.3 工具和软件
    4. 8.4 文档支持
    5. 8.5 相关链接
    6. 8.6 社区资源
    7. 8.7 商标
    8. 8.8 静电放电警告
    9. 8.9 Glossary
  9. 9机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.11.2 Clock System (CS) and Clock Distribution

The clock system includes a 32-kHz low-frequency oscillator (XT1 low frequency) or up to a 16-MHz high-frequency crystal oscillator (XT1 high frequency), an internal very low-power low-frequency oscillator (VLO), an integrated 32-kHz RC oscillator (REFO), an integrated internal digitally controlled oscillator (DCO) that can use frequency-locked loop (FLL) locking with internal or external 32-kHz reference clock, and on-chip asynchronous high-speed clock (MODOSC). The clock system is designed to target cost-effective designs with minimal external components. A fail-safe mechanism is designed for XT1. The clock system module offers the following clock signals.

  • Main Clock (MCLK): system clock used by the CPU and all relevant peripherals accessed by the bus. All clock sources except MODOSC can be selected as the source with a predivider of 1, 2, 4, 8, 16, 32, 64, or 128.
  • Sub-Main Clock (SMCLK): subsystem clock used by the peripheral modules. SMCLK derives from the MCLK with a predivider of 1, 2, 4, or 8. This means SMCLK is always equal to or less than MCLK.
  • Auxiliary Clock (ACLK): derived from the external XT1 clock or internal REFO clock up to 40 kHz.

All peripherals may have one or several clock sources depending on specific functionality. Table 6-8 and Table 6-9 show the clock distribution used in this device.

Table 6-8 Clock Distribution

CLOCK SOURCE SELECT BITS(1) MCLK SMCLK ACLK MODCLK VLOCLK EXTERNAL PIN
Frequency Range DC to 16 MHz DC to 16 MHz DC to 40 kHz 5 MHz ±10% 10 kHz ±50% –
CPU N/A Default – – – – –
FRAM N/A Default – – – – –
RAM N/A Default – – – – –
CRC N/A Default – – – – –
I/O N/A Default – – – –
TB0 TBSSEL – 10b 01b – – 00b (TB0CLK pin)
TB1 TBSSEL – 10b 01b – – 00b (TB1CLK pin)
eUSCI_A0 UCSSEL – 10b or 11b 01b – – 00b (UCA0CLK pin)
eUSCI_B0 UCSSEL – 10b or 11b 01b – – 00b (UCB0CLK pin)
WDT WDTSSEL – 00b 01b – 10b –
ADC ADCSSEL – 10b or 11b 01b 00b – –
RTC RTCSS – 01b(2) 01b(2) – 11b –
(1) N/A = not applicable
(2) Controlled by the RTCCKSEL bit in the SYSCFG2 register.
MSP430FR2311 MSP430FR2310 SLASE58_Clock_Distributor.gifFigure 6-1 Clock Distribution Block Diagram

Table 6-9 XTCLK Distribution

OPERATION MODE CLOCK SOURCE SELECT BITS XTHFCLK XTLFCLK XTLFCLK (LPMx.5)
AM TO LPM0 AM TO LPM3 AM TO LPM3.5
MCLK SELMS 10b 10b 10b
SMCLK SELMS 10b 10b 10b
REFO SELREF 0b 0b 0b
ACLK SELA 0b 0b 0b
RTC RTCSS – 10b 10b
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