M68040 datasheet(21/442 Pages) FREESCALE

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MOTOROLA

M68040 USER’S MANUAL

xxiii

LIST OF TABLES (Continued)

Table

Page

Number

Title

Number

8-5

Write-Back Data Alignment .......................................................................... 8-27

8-6

Access Error Stack Frame Combinations ....................................................8-31

9-1

Floating-Point Control Register Encodings .................................................. 9-3

9-2

MC68040 FPU Data Formats and Data Types ............................................ 9-7

9-3

Single-Precision Real Format Summary ...................................................... 9-8

9-4

Double-Precision Real Format Summary..................................................... 9-9

9-5

Extended-Precision Real Format Summary ................................................. 9-10

9-6

Packed Decimal Real Format Summary ...................................................... 9-11

9-7

Floating-Point Condition Code Encodings.................................................... 9-17

9-8

Floating-Point Conditional Tests .................................................................. 9-19

9-9

Floating-Point Exception Vectors ................................................................. 9-20

9-10

Unimplemented Instructions .........................................................................9-21

9-11

Possible Operand Errors Exceptions ........................................................... 9-29

9-12

Overflow Rounding Mode Values................................................................. 9-32

9-13

Underflow Rounding Mode Values............................................................... 9-34

9-14

Possible Divide by Zero Exceptions ............................................................. 9-36

9-15

Divide by Zero Rounding Mode Values........................................................ 9-37

9-16

State Frame Field Information ......................................................................9-44

10-1

Instruction Timing Index ............................................................................... 10-1

10-2

Number of Memory Accesses ...................................................................... 10-3

10-3

CINV Timing .................................................................................................10-8

10-4

CPUSH Best and Worst Case Timing .......................................................... 10-8

11-1

Maximum Power Dissipation for Output Buffer Mode Configuration ............ 11-13

11-2

Thermal Parameters with No Heat Sink or Airflow ....................................... 11-17

11-3

Thermal Parameters with Forced Airflow and

No Heat Sink for the MC68040 .................................................................. 11-18

11-4

Thermal Parameters with Forced Airflow and

No Heat Sink for the MC68LC040 and MC68EC040 ................................. 11-19

11-5

Thermal Parameters with Heat Sink and No Airflow .................................... 11-21

11-6

Thermal Parameters with Heat Sink and Airflow.......................................... 11-22

C-1

Additional MC68040V and MC68EC040V Signals....................................... C-2

C-2

Bus Encodings During LPSTOP Broadcast Cycle ....................................... C-4

C-3

IEEE Standard 1149.1A Instructions............................................................ C-12

E-1

MC68040 Floating-Point Instructions ........................................................... E-2

E-2

MC68040FPSP Floating-Point Instructions.................................................. E-3

E-3

Support for Data Types and Data Formats .................................................. E-4

E-4

Exception Conditions ................................................................................... E-4

Freescale Semiconductor, Inc.

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