ZHCSH09 October   2017 MSP432E401Y

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. 2Revision History
  3. 3Device Characteristics
    1. 3.1 Related Products
  4. 4Terminal Configuration and Functions
    1. 4.1 Pin Diagram
    2. 4.2 Pin Attributes
    3. 4.3 Signal Descriptions
      1. Table 4-3 Signal Descriptions
    4. 4.4 GPIO Pin Multiplexing
    5. 4.5 Buffer Type
    6. 4.6 Connections for Unused Pins
  5. 5Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Recommended DC Operating Conditions
    5. 5.5  Recommended GPIO Operating Characteristics
    6. 5.6  Recommended Fast GPIO Pad Operating Conditions
    7. 5.7  Recommended Slow GPIO Pad Operating Conditions
    8. 5.8  GPIO Current Restrictions
    9. 5.9  I/O Reliability
    10. 5.10 Current Consumption
    11. 5.11 Peripheral Current Consumption
    12. 5.12 LDO Regulator Characteristics
    13. 5.13 Power Dissipation
    14. 5.14 Thermal Resistance Characteristics, 128-Pin PDT (TQFP) Package
    15. 5.15 Timing and Switching Characteristics
      1. 5.15.1  Load Conditions
      2. 5.15.2  Power Supply Sequencing
        1. 5.15.2.1 Power and Brownout
          1. Table 5-3 Power and Brownout Levels
          2. 5.15.2.1.1 VDDA Levels
          3. 5.15.2.1.2 VDD Levels
          4. 5.15.2.1.3 VDDC Levels
          5. 5.15.2.1.4 VDD Glitch Response
          6. 5.15.2.1.5 VDD Droop Response
      3. 5.15.3  Reset Timing
        1. Table 5-4 Reset Characteristics
      4. 5.15.4  Clock Specifications
        1. 5.15.4.1 PLL Specifications
          1. Table 5-5 Phase Locked Loop (PLL) Characteristics
          2. 5.15.4.1.1 PLL Configuration
        2. 5.15.4.2 PIOSC Specifications
        3. 5.15.4.3 Low-Frequency Oscillator Specifications
          1. Table 5-9 Low-Frequency Oscillator Characteristics
        4. 5.15.4.4 Hibernation Low-Frequency Oscillator Specifications
          1. Table 5-10 Hibernation External Oscillator (XOSC) Input Characteristics
          2. Table 5-11 Hibernation Internal Low-Frequency Oscillator Clock Characteristics
        5. 5.15.4.5 Main Oscillator Specifications
          1. Table 5-12 Main Oscillator Input Characteristics
        6. 5.15.4.6 Main Oscillator Specification WIth ADC
          1. Table 5-14 System Clock Characteristics With ADC Operation
        7. 5.15.4.7 System Clock Characteristics With USB Operation
          1. Table 5-15 System Clock Characteristics With USB Operation
      5. 5.15.5  Sleep Modes
        1. Table 5-16 Wake From Sleep Characteristics
        2. Table 5-17 Wake From Deep Sleep Characteristics
      6. 5.15.6  Hibernation Module
        1. Table 5-18 Hibernation Module Battery Characteristics
        2. Table 5-19 Hibernation Module Characteristics
        3. Table 5-20 Hibernation Module Tamper I/O Characteristics
      7. 5.15.7  Flash Memory
        1. Table 5-21 Flash Memory Characteristics
      8. 5.15.8  EEPROM
        1. Table 5-22 EEPROM Characteristics
      9. 5.15.9  Input/Output Pin Characteristics
        1. Table 5-23 Fast GPIO Module Characteristics
        2. Table 5-24 Slow GPIO Module Characteristics
        3. 5.15.9.1    Types of I/O Pins and ESD Protection
          1. 5.15.9.1.1 Hibernate WAKE pin
            1. Table 5-25 Pad Voltage and Current Characteristics for Hibernate WAKE Pin
          2. 5.15.9.1.2 Nonpower I/O Pins
            1. Table 5-26 Nonpower I/O Pad Voltage and Current Characteristics
      10. 5.15.10 External Peripheral Interface (EPI)
        1. Table 5-28 EPI SDRAM Characteristics
        2. Table 5-29 EPI SDRAM Interface Characteristics
        3. Table 5-30 EPI Host-Bus 8 and Host-Bus 16 Interface Characteristics
        4. Table 5-31 EPI General-Purpose Interface Characteristics
        5. Table 5-32 EPI PSRAM Interface Characteristics
      11. 5.15.11 Analog-to-Digital Converter (ADC)
        1. Table 5-33 Electrical Characteristics for ADC at 1 Msps
        2. Table 5-34 Electrical Characteristics for ADC at 2 Msps
      12. 5.15.12 Synchronous Serial Interface (SSI)
        1. Table 5-35 SSI Characteristics
        2. Table 5-36 Bi- and Quad-SSI Characteristics
      13. 5.15.13 Inter-Integrated Circuit (I2C) Interface
        1. Table 5-37 I2C Characteristics
      14. 5.15.14 Ethernet Controller
        1. 5.15.14.1 DC Characteristics
          1. Table 5-38 Ethernet PHY DC Characteristics
        2. 5.15.14.2 Clock Characteristics for Ethernet
          1. Table 5-39 MOSC 25-MHz Crystal Specification
          2. Table 5-40 MOSC Single-Ended 25-MHz Oscillator Specification
        3. 5.15.14.3 AC Characteristics
          1. Table 5-41 Ethernet Controller Enable and Software Reset Timing
          2. Table 5-42 100Base-TX Transmit Timing
          3. Table 5-43 10Base-T Normal Link Pulse Timing
          4. Table 5-44 Auto-Negotiation Fast Link Pulse (FLP) Timing
          5. Table 5-45 100Base-TX Signal Detect Timing
      15. 5.15.15 Universal Serial Bus (USB) Controller
        1. Table 5-46 ULPI Interface Timing
      16. 5.15.16 Analog Comparator
        1. Table 5-47 Analog Comparator Characteristics
        2. Table 5-48 Analog Comparator Characteristics
        3. Table 5-49 Analog Comparator Voltage Reference Characteristics
        4. Table 5-50 Analog Comparator Voltage Reference Characteristics
      17. 5.15.17 Pulse-Width Modulator (PWM)
        1. Table 5-51 PWM Timing Characteristics
      18. 5.15.18 Emulation and Debug
        1. Table 5-52 JTAG Characteristics
  6. 6Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Arm Cortex-M4F Processor Core
      1. 6.3.1 Processor Core
      2. 6.3.2 System Timer (SysTick)
      3. 6.3.3 Nested Vectored Interrupt Controller (NVIC)
      4. 6.3.4 System Control Block (SCB)
      5. 6.3.5 Memory Protection Unit (MPU)
      6. 6.3.6 Floating-Point Unit (FPU)
    4. 6.4 On-Chip Memory
      1. 6.4.1 SRAM
      2. 6.4.2 Flash Memory
      3. 6.4.3 ROM
      4. 6.4.4 EEPROM
      5. 6.4.5 Memory Map
    5. 6.5 Peripherals
      1. 6.5.1  External Peripheral Interface (EPI)
      2. 6.5.2  Cyclical Redundancy Check (CRC)
      3. 6.5.3  Advanced Encryption Standard (AES) Accelerator
      4. 6.5.4  Data Encryption Standard (DES) Accelerator
      5. 6.5.5  Secure Hash Algorithm/Message Digest Algorithm (SHA/MD5) Accelerator
      6. 6.5.6  Serial Communications Peripherals
        1. 6.5.6.1 Ethernet MAC and PHY
        2. 6.5.6.2 Controller Area Network (CAN)
        3. 6.5.6.3 Universal Serial Bus (USB)
        4. 6.5.6.4 Universal Asynchronous Receiver/Transmitter (UART)
        5. 6.5.6.5 Inter-Integrated Circuit (I2C)
        6. 6.5.6.6 Quad Synchronous Serial Interface (QSSI)
      7. 6.5.7  System Integration
        1. 6.5.7.1 Direct Memory Access (DMA)
        2. 6.5.7.2 System Control and Clocks
        3. 6.5.7.3 Programmable Timers
        4. 6.5.7.4 Capture Compare PWM (CCP) Pins
        5. 6.5.7.5 Hibernation (HIB) Module
        6. 6.5.7.6 Watchdog Timers
        7. 6.5.7.7 Programmable GPIOs
      8. 6.5.8  Advanced Motion Control
        1. 6.5.8.1 Pulse Width Modulation (PWM)
        2. 6.5.8.2 Quadrature Encoder With Index (QEI) Module
      9. 6.5.9  Analog
        1. 6.5.9.1 ADC
        2. 6.5.9.2 Analog Comparators
      10. 6.5.10 JTAG and Arm Serial Wire Debug
      11. 6.5.11 Peripheral Memory Map
    6. 6.6 Identification
    7. 6.7 Boot Modes
  7. 7Applications, Implementation, and Layout
    1. 7.1 System Design Guidelines
  8. 8器件和文档支持
    1. 8.1 入门和后续步骤
    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 Community Resources
    6. 8.6 商标
    7. 8.7 静电放电警告
    8. 8.8 出口管制提示
    9. 8.9 术语表
  9. 9机械、封装和可订购信息

5.15.4.1.1 PLL Configuration

The PLL is disabled by default during power-on reset and is enabled later by software if required. Software specifies the output divisor to set the system clock frequency and enables the PLL to drive the output. The PLL is controlled using the PLLFREQ0, PLLFREQ1, and PLLSTAT registers. Changes made to these registers do not become active until after the NEWFREQ bit in the RSCLKCFG register is enabled. The clock source for the main PLL is selected by configuring the PLLSRC field in the Run and Sleep Clock Configuration (RSCLKCFG) register. The PLL allows for the generation of system clock frequencies in excess of the reference clock provided. The reference clocks for the PLL are the PIOSC and the MOSC.

The PLL is controlled by two registers, PLLFREQ0 and PLLFREQ1. The PLL VCO frequency (fVCO) is determined through Equation 1.

Equation 1. fVCO = fIN × MDIV

where

  • fIN = fXTAL / (Q+1)(N+1) or fPIOSC / (Q+1)(N+1)
  • MDIV = MINT + (MFRAC / 1024)

The Q and N values are programmed in the PLLFREQ1 register. To reduce jitter, program MFRAC to 0x0.

When the PLL is active, the system clock frequency (SysClk) is calculated using Equation 2.

Equation 2. SysClk = fVCO / (1 + 1)

The PLL system divisor factor (PSYSDIV) must be set as 1. Table 5-6 lists examples of the system clock frequency.

Table 5-6 Examples of System Clock Frequencies

fVCO (MHz)QPSYSDIV + 1System Clock (SYSCLK) Frequency (MHz)
480 2 2 120
480 3 2 80
480 4 2 60
480 5 2 48
320 2 2 80
320 3 2 53
320 4 2 40

If the main oscillator provides the clock reference to the PLL, the translation provided by hardware and used to program the PLL is available for software in the PLL Frequency n (PLLFREQn) registers. The internal translation provides a translation within ±1% of the targeted PLL VCO frequency. Table 5-7 shows the actual PLL frequency and error for a given crystal choice.

Table 5-7 provides examples of the programming expected for the PLLFREQ0 and PLLFREQ1 registers. The CRYSTAL FREQUENCY column specifies the input crystal frequency and the PLL FREQUENCY column displays the PLL frequency given the values of MINT and N, when Q = 0.

Table 5-7 Actual PLL Frequency(1)

CRYSTAL FREQUENCY (MHz)MINTNREFERENCE FREQUENCY (MHz)(2)PLL FREQUENCY (MHz)
DECIMAL VALUEHEXADECIMAL VALUE
5 64 0x40 0x0 5 320
6 160 0x35 0x2 2 320
8 40 0x28 0x0 8 320
10 32 0x20 0x0 10 320
12 80 0x50 0x2 4 320
16 20 0x14 0x0 16 320
18 160 0xA0 0x8 2 320
20 16 0x10 0x0 20 320
24 40 0x28 0x2 8 320
25 64 0x40 0x4 5 320
5 96 0x60 0x0 5 480
6 80 0x50 0x0 6 480
8 60 0x3C 0x0 8 480
10 48 0x30 0x0 10 480
12 40 0x28 0x0 12 480
16 30 0x1E 0x0 16 480
18 80 0x50 0x2 6 480
20 24 0x18 0x0 20 480
24 20 0x14 0x0 24 480
25 96 0x60 0x4 5 480
(1) For all examples listed, Q = 0.
(2) For a given crystal frequency, N should be chosen such that the reference frequency is 4 to 30 MHz.
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