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MC68030FE33 Datasheet(PDF) 19 Page - Motorola, Inc

Part No. MC68030FE33
Description  ENHANCED 32-BIT MICROPROCESSOR
Download  602 Pages
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Maker  MOTOROLA [Motorola, Inc]
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MC68030FE33 Datasheet(HTML) 19 Page - Motorola, Inc

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MC68030 USER’S MANUAL
MOTOROLA
LIST OF ILLUSTRATIONS (Continued)
Figure
Number
Title
Page
Number
8-8
RTE Instruction for Throwaway Four-Word Frame . . . . . . . . . . . . . . . . . . 8-26
8-9
Special Status Word (SSW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
9-1
MMU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
9-2
MMU Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
9-3
Translation Table Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
9-4
Example Translation Table Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
9-5
Example Translation Tree Layout in Memory. . . . . . . . . . . . . . . . . . . . . . . 9-8
9-6
Derivation of Table Index Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
9-7
Example Translation Tree Using Different Format Descriptors . . . . . . . . . 9-12
9-8
Address Translation General Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14
9-9
Root Pointer Descriptor Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-23
9-10
Short-Format Table Descriptor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-24
9-11
Long-Format Table Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-24
9-12
Short-Format Page Descriptor and Short-Format Early
Termination Page Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-25
9-13
Long-Format Early Termination Page Descriptor. . . . . . . . . . . . . . . . . . . . 9-25
9-14
Long-Format Page Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-26
9-15
Short-Format Invalid Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-26
9-16
Long-Format Invalid Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-27
9-17
Short-Format Indirect Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-27
9-18
Long-Format Indirect Descriptor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-28
9-19
Simplified Table Search Flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-29
9-20
Five-Level Table Search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-31
9-21
Example Translation Tree Using Contiguous Memory. . . . . . . . . . . . . . . . 9-35
9-22
Example Translation Tree Using Indirect Descriptors . . . . . . . . . . . . . . . . 9-36
9-23
Example Translation Tree Using Shared Tables . . . . . . . . . . . . . . . . . . . . 9-38
9-24
Example Translation Tree with Nonresident Tables. . . . . . . . . . . . . . . . . . 9-39
9-25
Detailed Flowchart of MMU Table Search Operation. . . . . . . . . . . . . . . . . 9-41
9-26
Table Search Initialization Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-42
9-27
ATC Entry Creation Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-42
9-28
Limit Check Procedure Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-43
9-29
Detailed Flowchart of Descriptor Fetch Operation . . . . . . . . . . . . . . . . . . . 9-44
9-30
Logical Address Map Using Function Code Lookup . . . . . . . . . . . . . . . . . 9-45
9-31
Example Translation Tree Using Function Code Lookup. . . . . . . . . . . . . . 9-46
9-32
Example Translation Tree Structure for Two Tasks . . . . . . . . . . . . . . . . . . 9-47
9-33
Exmple Logical Address Map with Shared Supervisor
and User Address Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-49
9-34
Exmple Translation Tree Using S and WP Bits to Set Protection . . . . . . . 9-50
9-35
Root Pointer Register (CRP, SRP) Format . . . . . . . . . . . . . . . . . . . . . . . . 9-54
9-36
Translation Control Register (TC) Format . . . . . . . . . . . . . . . . . . . . . . . . . 9-54
9-37
Transparent Translation Register (TT0 and TT1) Format . . . . . . . . . . . . . 9-57


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