Intelligent Motion Sensing Platform Data Sheet MMA9555L

2017-05-01

• MMA9555L Intelligent Motion-Sensing Pedometer
• Contents
• 1 Intelligent Sensing Platform Offering
• 2 General Description
  • 2.1 Functional Overview
  • 2.2 Pinout
  • 2.3 Pin Function Descriptions
  • 2.4 System Connections
• 3 Mechanical and Electrical Specifications
  • 3.1 Definitions
  • 3.2 Pin Groups
  • 3.3 Absolute Maximum Ratings
  • 3.4 Operating Conditions
  • 3.5 Electrostatic Discharge (ESD) and Latch-up Protection Characteristics
  • 3.6 General DC Characteristics
  • 3.7 Supply Current Characteristics
  • 3.8 Accelerometer Transducer Mechanical Characteristics
  • 3.9 ADC Characteristics
  • 3.10 ADC Sample Rates
  • 3.11 AC Electrical Characteristics
  • 3.12 General Timing Control
  • 3.13 I2C Timing
  • 3.14 Slave SPI Timing
• 4 Communication Interface
  • 4.1 Overview of Communication Interface
  • 4.2 Mailbox Interface
  • 4.3 Mailbox Usage
• 5 Version Application
  • 5.1 Reading the version information
• 6 Scheduler Application
  • 6.1 Scheduler application elements
  • 6.2 Interrupts
  • 6.3 Scheduler configuration registers
  • 6.4 Scheduler status registers
• 7 GPIO-AppMap Application
  • 7.1 Overview of GPIO-AppMap application
  • 7.2 GPIO configuration registers
• 8 Mailbox Application
  • 8.1 Overview of Mailbox application
  • 8.2 Mailbox configuration registers
  • 8.3 Mailbox status registers
  • 8.4 Reading aggregated data (Legacy mode—Quick read)
• 9 Analog Front End Application
  • 9.1 Overview of Analog Front End application
  • 9.2 AFE configuration registers
  • 9.3 AFE status registers
• 10 Data FIFO Application
  • 10.1 Overview of Data FIFO application
  • 10.2 Modes of operation
  • 10.3 Reading process
  • 10.4 Data FIFO block diagram
  • 10.5 Data FIFO configuration registers
  • 10.6 Data FIFO status registers
• 11 Event Queue Application
  • 11.1 Overview of Event Queue application
  • 11.2 Event Queue configuration registers
  • 11.3 Event Queue status registers
• 12 Status Register Application
  • 12.1 Overview of Status Register application
  • 12.2 Status Register configuration registers
  • 12.3 Status Register default configuration
• 13 Sleep/Wake Application
  • 13.1 Overview of Sleep/Wake application
  • 13.2 Sleep/Wake configuration registers
  • 13.3 Sleep/Wake status registers
• 14 Reset/Suspend/Clear Control Application
  • 14.1 Overview of Reset/Suspend/Clear Control application
  • 14.2 Configuration registers for Reset/Suspend/Clear Control applications
  • 14.3 Reset/Suspend/Clear status registers
  • 14.4 Reboot to ROM CI from flash code
  • 14.5 Reboot to flash code from ROM CI
• 15 MBOX Configuration Application
  • 15.1 Overview of MBOX Configuration application
  • 15.2 Normal mode
  • 15.3 Legacy mode
  • 15.4 Configuring mailbox operational mode
  • 15.5 MBOX Configuration memory map and register
• 16 Pedometer Application
  • 16.1 Background and overview
  • 16.2 Functional description
  • 16.3 Memory-maps and register descriptions
  • 16.4 Pedometer application examples
• 17 GPIO Input/Output Application
  • 17.1 Overview of GPIO Input/Output application
  • 17.2 Memory maps and register descriptions
  • 17.3 GPIO Input/Output configuration register descriptions
  • 17.4 GPIO Input/Output Status register descriptions
  • 17.5 GPIO Input/Output application examples
• 18 Six-Direction Application
  • 18.1 Overview of the Six-Direction application
  • 18.2 Memory maps and register descriptions
  • 18.3 Six Direction configuration register descriptions
  • 18.4 Six Direction Status register descriptions
• 19 Sample operations
  • 19.1 Read pedometer status variables
  • 19.2 Read pedometer configuration variables
  • 19.3 Write pedometer configuration variables
  • 19.4 Read GPIO Input/output status variables
  • 19.5 Read GPIO Input/output configuration variables
  • 19.6 Write GPIO Input/output configuration variables
  • 19.7 Read Six direction status variables
  • 19.8 Read Six direction configuration variables
  • 19.9 Write Six direction configuration variables
  • 19.10 Reset pedometer configuration variables to their defaults
  • 19.11 Enable/disable the Pedometer application
  • 19.12 Configure the AFE range
  • 19.13 Configure output interrupt: Activity change on GPIO6
  • 19.14 Configure output interrupt: Step change on GPIO7
  • 19.15 Configure output interrupt: Suspend change on GPIO8
  • 19.16 Configure output interrupt: Merged flags on GPIO6
  • 19.17 Configure output interrupt: Every 10 steps on GPIO7
  • 19.18 Configure output interrupt: Device direction change on GPIO6
  • 19.19 Wake up from Deep Sleep (Stop No Clock mode)
• 20 Package Information
  • 20.1 Footprint and pattern information
  • 20.2 Marking
  • 20.3 Tape and reel information
  • 20.4 Package Description