MOTOROLA
M68040 USER’S MANUAL
xiii
TABLE OF CONTENTS (Continued)
Paragraph
Number
Page
Number
Title
9.7.5
9.7.5.1
9.7.5.2
9.7.6
9.7.7
9.8
Underflow ..........................................................................................
Maskable Exception Conditions.....................................................
Nonmaskable Exception Conditions ..............................................
Divide by Zero....................................................................................
Inexact Result....................................................................................
Floating-Point State Frames..................................................................
9-33
9-34
9-34
9-36
9-36
9-39
Section 10
Instruction Timings
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.7.1
10.7.2
10.7.3
Overview ...............................................................................................
Instruction Timing Examples .................................................................
CINV and CPUSH Instruction Timing....................................................
MOVE Instruction Timing ......................................................................
Miscellaneous Integer Unit Instruction Timings.....................................
Integer Unit Instruction Timings ............................................................
Floating-Point Unit Instruction Timings .................................................
Miscellaneous Integer Unit Support Timings.....................................
Integer Unit Support Timings.............................................................
Timings in the Floating-Point Unit......................................................
10-3
10-5
10-8
10-9
10-11
10-13
10-29
10-29
10-30
10-35
Section 11
MC68040 Electrical and Thermal Characteristics
Maximum Ratings .................................................................................
Thermal Characteristics ........................................................................
DC Electrical Specifications ..................................................................
Power Dissipation .................................................................................
Clock AC Timing Specifications ............................................................
Output AC Timing Specifications ..........................................................
Input AC Timing Specifications .............................................................
MC68040 Thermal Device Characteristics............................................
MC68040 Die and Package...............................................................
MC68040 Power Considerations.......................................................
MC68040 Thermal Management Techniques.......................................
Still Air................................................................................................
Forced Air ..........................................................................................
With Heat Sink...................................................................................
With Heat Sink and Forced Air ..........................................................
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.8.1
11.8.2
11.9
11.9.1
11.9.2
11.9.3
11.9.4
11-1
11-1
11-2
11-2
11-3
11-4
11-5
11-12
11-12
11-12
11-14
11-17
11-18
11-19
11-22