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MC68340AB16E Datasheet(PDF) 10 Page - Motorola, Inc |
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MC68340AB16E Datasheet(HTML) 10 Page - Motorola, Inc |
10 / 441 page 11/2/95 SECTION 1: OVERVIEW UM Rev 1 MOTOROLA MC68340 USER'S MANUAL ix TABLE OF CONTENTS (Continued) Paragraph Page Number Title Number 5.4.2.3 Changing Privilege Level........................................................................5-39 5.5 Exception Processing ......................................................................................5-39 5.5.1 Exception Vectors.........................................................................................5-40 5.5.1.1 Types of Exceptions .................................................................................5-41 5.5.1.2 Exception Processing Sequence ..........................................................5-41 5.5.1.3 Exception Stack Frame............................................................................5-42 5.5.1.4 Multiple Exceptions ..................................................................................5-42 5.5.2 Processing of Specific Exceptions ............................................................5-44 5.5.2.1 Reset ...........................................................................................................5-44 5.5.2.2 Bus Error.....................................................................................................5-46 5.5.2.3 Address Error.............................................................................................5-46 5.5.2.4 Instruction Traps........................................................................................5-47 5.5.2.5 Software Breakpoints...............................................................................5-47 5.5.2.6 Hardware Breakpoints.............................................................................5-48 5.5.2.7 Format Error ...............................................................................................5-48 5.5.2.8 Illegal or Unimplemented Instructions ..................................................5-48 5.5.2.9 Privilege Violations...................................................................................5-49 5.5.2.10 Tracing........................................................................................................5-50 5.5.2.11 Interrupts.....................................................................................................5-51 5.5.2.12 Return from Exception..............................................................................5-52 5.5.3 Fault Recovery...............................................................................................5-53 5.5.3.1 Types of Faults ..........................................................................................5-55 5.5.3.1.1 Type I—Released Write Faults ...........................................................5-55 5.5.3.1.2 Type II—Prefetch, Operand, RMW, and MOVEP Faults.................5-56 5.5.3.1.3 Type III—Faults During MOVEM Operand Transfer .......................5-57 5.5.3.1.4 Type IV—Faults During Exception Processing ...............................5-57 5.5.3.2 Correcting a Fault .....................................................................................5-57 5.5.3.2.1 Type I—Completing Released Writes via Software .......................5-57 5.5.3.2.2 Type I—Completing Released Writes via RTE................................5-57 5.5.3.2.3 Type II—Correcting Faults via RTE....................................................5-58 5.5.3.2.4 Type III—Correcting Faults via Software..........................................5-58 5.5.3.2.5 Type III—Correcting Faults by Conversion and Restart.................5-58 5.5.3.2.6 Type III—Correcting Faults via RTE...................................................5-59 5.5.3.2.7 Type IV—Correcting Faults via Software .........................................5-59 5.5.4 CPU32 Stack Frames ..................................................................................5-60 5.5.4.1 Four-Word Stack Frame ..........................................................................5-60 5.5.4.2 Six-Word Stack Frame.............................................................................5-60 5.5.4.3 Bus Error Stack Frame.............................................................................5-60 5.6 Development Support......................................................................................5-63 5.6.1 CPU32 Integrated Development Support................................................5-63 5.6.1.1 Background Debug Mode (BDM) Overview ........................................5-64 5.6.1.2 Deterministic Opcode Tracking Overview............................................5-64 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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