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8XC196NP, 80C196NU
Microcontroller
User’s M anual
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8XC196NP, 80C196NU Microcontroller User’s Manual August 2004 Order Number 272479-003
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Information in this document is provided solely to enable use of Intel products. Intel assumes no liability whatsoever, including infringement of any patent or copyright, for sale and use of Intel products except as provided in Intel’s Terms and Conditions of Sale for such products. Intel Corporation makes no warranty for the use of its products and assumes no responsibility for any errors which may appear in this document nor does it make a commitment to update the information contained herein.
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CONTENTS CHAPTER 1 GUIDE TO THIS MANUAL 1.1 MANUAL CONTENTS ................................................................................................... 1-1 1.2 NOTATIONAL CONVENTIONS AND TERMINOLOGY ................................................ 1-3 1.3 RELATED DOCUMENTS .............................................................................................. 1-5 1.4 ELECTRONIC SUPPORT SYSTEMS ........................................................................... 1-8 1.4.4 Wo
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8XC196NP, 80C196NU USER’S MANUAL CHAPTER 3 ADVANCED MATH FEATURES 3.1 ENHANCED MULTIPLICATION INSTRUCTIONS........................................................ 3-1 3.2 OPERATING MODES.................................................................................................... 3-2 3.2.1 Saturation Mode ........................................................................................................3-2 3.2.2 Fractional Mode .........................................................
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CONTENTS 4.5.1 Using Registers .......................................................................................................4-12 4.5.2 Addressing 32-bit Operands ...................................................................................4-12 4.5.3 Addressing 64-bit Operands ...................................................................................4-12 4.5.4 Linking Subroutines .............................................................................................
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8XC196NP, 80C196NU USER’S MANUAL CHAPTER 6 STANDARD AND PTS INTERRUPTS 6.1 OVERVIEW OF INTERRUPTS...................................................................................... 6-1 6.2 INTERRUPT SIGNALS AND REGISTERS ................................................................... 6-3 6.3 INTERRUPT SOURCES AND PRIORITIES.................................................................. 6-4 6.3.1 Special Interrupts ........................................................................
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CONTENTS 7.3.1.4 Open-drain Output Mode ...................................................................................7-14 7.3.1.5 Input Mode .........................................................................................................7-16 7.3.2 Configuring EPORT Pins ........................................................................................7-17 7.3.2.1 Configuring EPORT Pins for Extended-address Functions ................................7-17 7.3.2.2 Configuring EP
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8XC196NP, 80C196NU USER’S MANUAL 10.2 EPA AND TIMER/COUNTER SIGNALS AND REGISTERS ....................................... 10-2 10.3 TIMER/COUNTER FUNCTIONAL OVERVIEW........................................................... 10-5 10.3.1 Cascade Mode (Timer 2 Only) ................................................................................10-6 10.3.2 Quadrature Clocking Mode .....................................................................................10-6 10.4 EPA CHANNEL FUNCTIONAL
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CONTENTS 12.3 IDLE MODE ................................................................................................................. 12-5 12.4 STANDBY MODE (80C196NU ONLY) ........................................................................ 12-6 12.4.1 Enabling and Disabling Standby Mode ...................................................................12-6 12.4.2 Entering Standby Mode ..........................................................................................12-6 12.4.3
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8XC196NP, 80C196NU USER’S MANUAL APPENDIX A INSTRUCTION SET REFERENCE APPENDIX B SIGNAL DESCRIPTIONS B.1 FUNCTIONAL GROUPINGS OF SIGNALS ................................................................. B-1 B.2 SIGNAL DESCRIPTIONS............................................................................................. B-6 B.3 DEFAULT CONDITIONS............................................................................................ B-13 APPENDIX C REGISTERS GLOSSARY INDEX x
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CONTENTS FIGURES Figure Page 2-1 8XC196NP and 80C196NU Block Diagram .................................................................2-2 2-2 Block Diagram of the Core ...........................................................................................2-3 2-3 Clock Circuitry (8XC196NP).........................................................................................2-7 2-4 Clock Circuitry (80C196NU) ...................................................................................
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8XC196NP, 80C196NU USER’S MANUAL FIGURES Figure Page 8-5 Serial Port Frames in Mode 2 and 3.............................................................................8-7 8-6 Serial Port Control (SP_CON) Register........................................................................8-9 8-7 Serial Port Baud Rate (SP_BAUD) Register ..............................................................8-11 8-8 Serial Port Status (SP_STATUS) Register........................................................
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CONTENTS FIGURES Figure Page 13-7 Chip Configuration 1 (CCR1) Register .....................................................................13-16 13-8 Multiplexing and Bus Width Options.........................................................................13-19 13-9 Bus Activity for Four Types of Buses........................................................................13-20 13-10 16-bit External Devices in Demultiplexed Mode.......................................................13-22 13-11
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8XC196NP, 80C196NU USER’S MANUAL TABLES Table Page 1-1 Handbooks and Product Information............................................................................1-6 1-2 Application Notes, Application Briefs, and Article Reprints ..........................................1-6 ® 1-3 MCS 96 Microcontroller Datasheets (Commercial/Express) ......................................1-7 ® 1-4 MCS 96 Microcontroller Datasheets (Automotive) .....................................................1-7 ® 1-5 MCS
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CONTENTS TABLES Table Page 7-9 EPORT Pins ...............................................................................................................7-11 7-10 EPORT Control and Status Registers ........................................................................7-12 7-11 Logic Table for EPORT in I/O Mode...........................................................................7-16 7-12 Logic Table for EPORT in Address Mode ................................................................
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8XC196NP, 80C196NU USER’S MANUAL TABLES Table Page A-4 PSW Flag Setting Symbols ......................................................................................... A-5 A-5 Operand Variables ...................................................................................................... A-6 A-6 Instruction Set ............................................................................................................. A-7 A-7 Instruction Opcodes .......................................
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1 Guide to This Manual
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CHAPTER 1 GUIDE TO THIS MANUAL This manual describes the 8XC196NP and 80C196NU embedded microcontrollers. It is intended for use by both software and hardware designers familiar with the principles of microcontrollers. This chapter describes what you’ll find in this manual, lists other documents that may be useful, and explains how to access the support services we provide to help you complete your design. 1.1 MANUAL CONTENTS This manual contains several chapters and appendixes, a glossary, and
