Document Outline

• Features
• Description
• Block Diagram
• Pinout Description
  • Pinout
  • Signals
• SFR Mapping
• Clock Controller
  • Introduction
  • Oscillator
  • PLL
  • Registers
• Dual Data Pointer Register
• Program/Code Memory
  • External Code Memory Access
  • Flash Memory Architecture
  • Overview of FM0 Operations
  • Registers
• Flash EEPROM Memory
  • General Description
  • Features
  • Flash Programming and Erasure
  • Flash Registers and Memory Map
  • Flash Memory Status
  • Memory Organization
  • Boot Process
  • In-System Programming (ISP)
  • In-application Programming Method
• EEPROM Data Memory
  • Description
  • Write Data in the Column Latches
  • Programming
  • Read Data
  • Registers
• In-System Programming (ISP)
  • Flash Programming and Erasure
  • Low Pin-count Boot Process
  • High Pin-Count Boot Process
  • Application Programming Interface
  • Application Remarks
  • XROW Bytes
  • Hardware Byte
• On-chip Expanded RAM (XRAM)
• Timer 2
  • Auto-reload Mode
  • Programmable Clock Output
• Programmable Counter Array (PCA)
  • PCA Capture Mode
  • 16-bit Software Timer/Compare Mode
  • High Speed Output Mode
  • Pulse Width Modulator Mode
  • PCA Watchdog Timer
• Serial I/O Port
  • Framing Error Detection
  • Automatic Address Recognition
  • Baud Rate Selection for UART for Mode 1 and 3
  • UART Registers
• Interrupt System
  • Overview
  • Registers
  • Interrupt Sources and Vector Addresses
• Keyboard Interface
  • Introduction
  • Description
  • Registers
• Programmable LED
• Serial Peripheral Interface (SPI)
  • Features
  • Signal Description
  • Functional Description
• USB Controller
  • Introduction
  • Description
  • Configuration
  • Read/Write Data FIFO
  • Bulk/Interrupt Transactions
  • Control Transactions
  • Isochronous Transactions
  • Miscellaneous
  • Suspend/Resume Management
  • Detach Simulation
  • USB Interrupt System
  • USB Registers
• Power Management
  • Idle Mode
  • Power-down Mode
  • Registers
• Hardware Watchdog Timer
  • Using the WDT
  • WDT During Power-down and Idle
• ONCE Mode (ON Chip Emulation)
• Reduced EMI Mode
• Electrical Characteristics
  • Absolute Maximum Ratings
  • DC Parameters for Standard Voltage
  • DC Parameters for Low Voltage
  • USB DC Parameters
  • AC Parameters
  • USB AC Parameters
• Ordering Information
• Packaging Information
  • 64-lead VQFP
  • 52-lead PLCC
  • 48-lead MLF
  • 28-lead SO
• Table of Contents