Table of Contents
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1.1
Differences Among M68060 Family Members.............................................. 1-3
1.1.1
MC68LC060................................................................................................ 1-3
1.1.2
MC68EC060 ............................................................................................... 1-3
1.1.2.1
Address Translation Differences .............................................................. 1-3
1.1.2.2
Instruction Differences .............................................................................. 1-3
1.2
Features........................................................................................................ 1-4
1.3
Architecture................................................................................................... 1-4
1.4
Processor Overview...................................................................................... 1-5
1.4.1
Functional Blocks........................................................................................ 1-5
1.4.2
Integer Unit ................................................................................................. 1-7
1.4.2.1
Instruction Fetch Unit................................................................................ 1-7
1.4.2.2
Integer Unit ............................................................................................... 1-8
1.4.2.3
Floating-Point Unit .................................................................................... 1-8
1.4.2.4
Memory Units ........................................................................................... 1-9
1.4.2.5
Address Translation Caches .................................................................... 1-9
1.4.2.6
Instruction and Data Caches .................................................................... 1-9
1.4.2.6.1
Cache Organization.............................................................................. 1-10
1.4.2.6.2
Cache Coherency................................................................................. 1-10
1.4.3
Bus Controller ........................................................................................... 1-10
1.5
Processing States ....................................................................................... 1-10
1.6
Programming Model.................................................................................... 1-11
1.7
Data Format Summary................................................................................ 1-14
1.8
Addressing Capabilities Summary .............................................................. 1-14
1.9
Instruction Set Overview ............................................................................. 1-15
1.10
Notational Conventions............................................................................... 1-21
2.1
Address and Control Signals ........................................................................ 2-3
2.1.1
Address Bus (A31-A0) ............................................................................... 2-3
2.1.2
Cycle Long-Word Address (CLA) ............................................................... 2-4
2.2
Data Bus (D31-D0)....................................................................................... 2-4
2.3
Transfer Attribute Signals ............................................................................. 2-4
2.3.1
Transfer Cycle Type (TT1, TT0) ................................................................. 2-4
2.3.2
Transfer Cycle Modifier (TM2-TM0) ........................................................... 2-4
2.3.3
Transfer Line Number (TLN1, TLN0).......................................................... 2-5
2.3.4
User-Programmable Page Attributes (UPA1, UPA0).................................. 2-5
2.3.5
Read/Write (R/W) ....................................................................................... 2-6
MOTOROLA
TABLE OF CONTENTS
Section 1
Section 2
M68060 USER'S MANUAL
ix
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Chapters
Table of Contents
