Document Outline

• Revision History
• List of Sections
• Table of Contents
• List of Figures
• List of Tables
• Section 1. General Description
  • 1.1 Contents
  • 1.2 Introduction
  • 1.3 Features
  • 1.4 Programmable Options
  • 1.5 Pin Assignments
    • 1.5.1 VDD and VSS
    • 1.5.2 OSC1 and OSC2
      • 1.5.2.1 Crystal Oscillator
      • 1.5.2.2 Ceramic Resonator Oscillator
      • 1.5.2.3 RC Oscillator
      • 1.5.2.4 External Clock
  • 1.6 RESET
  • 1.7 IRQ/VPP
  • 1.8 PA0�PA7
  • 1.9 PB0�PB5
• Section 2. Memory
  • 2.1 Contents
  • 2.2 Introduction
  • 2.3 Memory Map
  • 2.4 Input/Output Register Summary
  • 2.5 RAM
  • 2.6 EPROM/OTPROM
    • 2.6.1 EPROM/OTPROM Programming
    • 2.6.2 EPROM Programming Register
    • 2.6.3 EPROM Erasing
  • 2.7 Mask Option Register
  • 2.8 EPROM Programming Characteristics
• Section 3. Central Processor Unit (CPU)
  • 3.1 Contents
  • 3.2 Introduction
  • 3.3 CPU Control Unit
  • 3.4 Arithmetic/Logic Unit
  • 3.5 CPU Registers
    • 3.5.1 Accumulator
    • 3.5.2 Index Register
    • 3.5.3 Stack Pointer
    • 3.5.4 Program Counter
    • 3.5.5 Condition Code Register
  • 3.6 Instruction Set
    • 3.6.1 Addressing Modes
      • 3.6.1.1 Inherent
      • 3.6.1.2 Immediate
      • 3.6.1.3 Direct
      • 3.6.1.4 Extended
      • 3.6.1.5 Indexed, No Offset
      • 3.6.1.6 Indexed, 8Bit Offset
      • 3.6.1.7 Indexed, 16Bit Offset
      • 3.6.1.8 Relative
    • 3.6.2 Instruction Types
      • 3.6.2.1 Register/Memory Instructions
      • 3.6.2.2 Read-Modify-Write Instructions
      • 3.6.2.3 Jump/Branch Instructions
      • 3.6.2.4 Bit Manipulation Instructions
      • 3.6.2.5 Control Instructions
  • 3.7 Instruction Set Summary
  • 3.8 Opcode Map
• Section 4. Resets and Interrupts
  • 4.1 Contents
  • 4.2 Introduction
  • 4.3 Resets
    • 4.3.1 Power-On Reset
    • 4.3.2 External Reset
    • 4.3.3 COP Watchdog Reset
    • 4.3.4 Illegal Address Reset
  • 4.4 Interrupts
    • 4.4.1 Software Interrupt
    • 4.4.2 External Interrupt
    • 4.4.3 Timer Interrupts
      • 4.4.3.1 Real-Time Interrupt
      • 4.4.3.2 Timer Overflow Interrupt
    • 4.4.4 Interrupt Processing
• Section 5. Low-Power Modes
  • 5.1 Contents
  • 5.2 Introduction
  • 5.3 Exiting Stop and Wait Modes
  • 5.4 Effects of Stop and Wait Modes
    • 5.4.1 Clock Generation
    • 5.4.2 CPU
    • 5.4.3 COP Watchdog
    • 5.4.4 Timer
    • 5.4.5 EPROM/OTPROM
    • 5.4.6 Data-Retention Mode
  • 5.5 Timing
• Section 6. Parallel Input/Output (I/O) Ports
  • 6.1 Contents
  • 6.2 Introduction
  • 6.3 Port A
    • 6.3.1 Port A Data Register
    • 6.3.2 Data Direction Register A
    • 6.3.3 Pulldown Register A
    • 6.3.4 Port A LED Drive Capability
    • 6.3.5 Port A I/O Pin Interrupts
  • 6.4 Port B
    • 6.4.1 Port B Data Register
    • 6.4.2 Data Direction Register B
    • 6.4.3 Pulldown Register B
  • 6.5 5.0-Volt I/O Port Electrical Characteristics
  • 6.6 3.3-Volt I/O Port Electrical Characteristics
• Section 7. Computer Operating Properly (COP) Module
  • 7.1 Contents
  • 7.2 Introduction
  • 7.3 Operation
    • 7.3.1 COP Watchdog Timeout
    • 7.3.2 COP Watchdog Timeout Period
    • 7.3.3 Clearing the COP Watchdog
  • 7.4 Interrupts
  • 7.5 COP Register
  • 7.6 Low-Power Modes
    • 7.6.1 Stop Mode
    • 7.6.2 Wait Mode
• Section 8. External Interrupt Module (IRQ)
  • 8.1 Contents
  • 8.2 Introduction
  • 8.3 Operation
    • 8.3.1 IRQ/VPP Pin
    • 8.3.2 Optional External Interrupts
  • 8.4 IRQ Status and Control Register
  • 8.5 External Interrupt Timing
    • 8.5.1 5.0-Volt External Interrupt Timing Characteristics
    • 8.5.2 3.3-Volt External Interrupt Timing Characteristics
• Section 9. Multifunction Timer Module
  • 9.1 Contents
  • 9.2 Introduction
  • 9.3 Operation
  • 9.4 Interrupts
  • 9.5 I/O Registers
    • 9.5.1 Timer Status and Control Register
    • 9.5.2 Timer Counter Register
  • 9.6 Low-Power Modes
    • 9.6.1 Stop Mode
    • 9.6.2 Wait Mode
• Section 10. Electrical Specifications
  • 10.1 Contents
  • 10.2 Introduction
  • 10.3 Maximum Ratings
  • 10.4 Operating Temperature Range
  • 10.5 Thermal Characteristics
  • 10.6 Power Considerations
  • 10.7 5.0-Volt DC Electrical Characteristics
  • 10.8 3.3-Volt DC Electrical Characteristics
  • 10.9 Driver Characteristics
  • 10.10 Typical Supply Currents
  • 10.11 EPROM Programming Characteristics
  • 10.12 5.0-Volt Control Timing
  • 10.13 3.3-Volt Control Timing
• Section 11. Mechanical Specifications
  • 11.1 Contents
  • 11.2 Introduction
  • 11.3 Plastic Dual In-Line Package (Case 738)
  • 11.4 Small Outline Integrated Circuit (Case 751)
  • 11.5 Ceramic Dual In-Line Package (Case 732)
• Section 12. Ordering Information
  • 12.1 Contents
  • 12.2 Introduction
  • 12.3 MCU Order Numbers
• Appendix A. MC68HRC705J1A
  • A.1 Contents
  • A.2 Introduction
  • A.3 RC Oscillator Connections
  • A.4 Typical Internal Operating Frequency for RC Oscillator Option
  • A.5 Package Types and Order Numbers
• Appendix B. MC68HSC705J1A
  • B.1 Contents
  • B.2 Introduction
  • B.3 5.0-Volt DC Electrical Characteristics
  • B.4 3.3-Volt DC Electrical Characteristics
  • B.5 Typical Supply Currents
  • B.6 Package Types and Order Numbers
• Appendix C. MC68HSR705J1A
  • C.1 Contents
  • C.2 Introduction
  • C.3 RC Oscillator Connections (External Resistor)
  • C.4 Typical Internal Operating Frequency at 25�C for High-Speed RC Oscillator Option
  • C.5 RC Oscillator Connections (No External Resistor)
  • C.6 Typical Internal Operating Frequency versus Temperature (No External Resistor)
  • C.7 Package Types and Order Numbers
• Index