mc68ec060 Freescale Semiconductor, Inc, mc68ec060 Datasheet - Page 17

• Manufacturer Part Number: mc68ec060
• Description: Mc68060 Superscalar 68k Microprocessor Including The Lc060 And Ec060
• Manufacturer: Freescale Semiconductor, Inc

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MOTOROLA
MC68060 Block Diagram ................................................................................... 1-6
Programming Model ......................................................................................... 1-12
Functional Signal Groups ................................................................................... 2-3
MC68060 Integer Unit Pipeline .......................................................................... 3-1
Integer Unit User Programming Model............................................................... 3-2
Integer Unit Supervisor Programming Model ..................................................... 3-3
Status Register................................................................................................... 3-4
Processor Configuration Register ...................................................................... 3-5
Memory Management Unit ................................................................................. 4-2
Memory Management Programming Model ....................................................... 4-3
URP and SRP Register Formats........................................................................ 4-3
Translation Control Register Format .................................................................. 4-4
Transparent Translation Register Format .......................................................... 4-6
Translation Table Structure ................................................................................ 4-8
Logical Address Format ..................................................................................... 4-8
Detailed Flowchart of Table Search Operation ................................................ 4-10
Detailed Flowchart of Descriptor Fetch Operation ........................................... 4-11
Table Descriptor Formats................................................................................. 4-12
Page Descriptor Formats ................................................................................. 4-12
Example Translation Table............................................................................... 4-15
Translation Table Using Indirect Descriptors ................................................... 4-16
Translation Table Using Shared Tables ........................................................... 4-18
Translation Table with Nonresident Tables ...................................................... 4-19
Translation Table Structure for Two Tasks ...................................................... 4-21
Logical Address Map with Shared Supervisor and User Address Spaces....... 4-22
Translation Table Using S-Bit and W-Bit To Set Protection ............................. 4-23
ATC Organization............................................................................................. 4-24
ATC Entry and Tag Fields ................................................................................ 4-25
Address Translation Flowchart......................................................................... 4-29
MC68060 Instruction and Data Caches ............................................................. 5-2
Instruction Cache Line Format ........................................................................... 5-2
Data Cache Line Format .................................................................................... 5-2
Caching Operation ............................................................................................. 5-3
Cache Control Register ...................................................................................... 5-5
Instruction Cache Line State Diagram.............................................................. 5-16
Data Cache Line State Diagrams..................................................................... 5-18
Floating-Point Unit Block Diagram ..................................................................... 6-2
Floating-Point User Programming Model ........................................................... 6-3
Floating-Point Control Register Format.............................................................. 6-4
LIST OF ILLUSTRATIONS
M68060 USER’S MANUAL
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