MC68030 Datasheet, PDF (21/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

LIST OF ILLUSTRATIONS (Concluded)
Figure
Number
Title
Page
Number
10-38
10-39
10-40
10-41
10-42
10-43
10-44
10-45
Operand Format in Memory for Transfer to —(An) . . . . . . . . . . . . . . . . . . 10-54
Transfer Status Register and ScanPC Primitive Format . . . . . . . . . . . . . . 10-55
Take Pre-Instruction Exception Primitive Format . . . . . . . . . . . . . . . . . . . . 10-56
MC68030 Pre-Instruction Stack Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-57
Take Mid-Instruction Exception Primitive Format. . . . . . . . . . . . . . . . . . . . 10-58
MC68030 Mid-Instruction Stack Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-59
Take Post-Instruction Exception Primitive Format . . . . . . . . . . . . . . . . . . . 10-60
MC68030 Post-Instruction Stack Frame . . . . . . . . . . . . . . . . . . . . . . . . . . 10-60
11-1
11-2
11-3
11-4
11-5
Block Diagram – Eight Independent Resources. . . . . . . . . . . . . . . . . . . . . 11-3
Simultaneous Instruction Execution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-7
Derivation of Instruction Overlap Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-8
Processor Activity – Even Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-9
Processor Activity – Odd Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-10
12-1
12-2
12-3
12-4
12-5
12-6
12-7
12-8
12-9
12-10
12-11
12-12
12-13
12-14
12-15
12-16
12-17
12-18
12-19
12-20
12-21
12-22
12-23
12-24
12-25
Signal Routing for Adapting the MC68030 to MC68020 Designs . . . . . . . 12-2
32-Bit Data Bus Coprocessor Connection . . . . . . . . . . . . . . . . . . . . . . . . . 12-6
Chip-Select Generation PAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-8
PAL Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-8
Bus Cycle Timing Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-9
Example MC68030 Byte Select PAL System Configuration . . . . . . . . . . . 12-12
MC68030 Byte Select PAL Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13
Access Time Computation Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-15
Example Two-Clock Read, Three-Clock Write Memory Bank . . . . . . . . . . 12-19
Example PAL Equations for Two-Clock Memory Bank . . . . . . . . . . . . . . . 12-20
Additional Memory Enable Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-21
Example Two-Clock Read and Write Memory Bank . . . . . . . . . . . . . . . . . 12-22
Example PAL Equation for Two-Clock Read and Write Memory Bank . . . 12-23
Example 2-1-1-1 Burst Mode Memory Bank at 20 MHz, 256K Bytes . . . . 12-25
Example 3-1-1-1 Pipelined Burst Mode Memory Bank at
20 MHz, 256K Bytes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-28
Additional Memory Enable Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-29
Example MC68030 Hardware Configuration with
External Physical Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-33
Example Early Termination Control Circuit . . . . . . . . . . . . . . . . . . . . . . . . 12-34
Normal Instruction Boundaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-37
Trace or Interrupt Exception. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-38
Other Exceptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-38
Processor Halted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-39
Trace Interface Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-41
PAL Pin Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-44
Logic Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-45
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MC68030 USER’S MANUAL
MOTOROLA