MC68030 Datasheet, PDF (18/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

LIST OF ILLUSTRATIONS (Continued)
Figure
Number
Title
Page
Number
7-35
7-36
7-37
7-38
7-39
7-40
7-41
7-42
7-43
7-44
7-45
7-46
7-47
7-48
7-49
7-50
7-51
7-52
7-53
7-54
7-55
7-56
7-57
7-58
7-59
7-60
7-61
7-62
7-63
7-64
7-65
Synchronous Read-Modify-Write Cycle Flowchart. . . . . . . . . . . . . . . . . . . 7-55
Synchronous Read-Modify-Write Cycle Timing — CIIN Asserted . . . . . . . 7-56
Burst Operation Flowchart — Four Long Words Transferred. . . . . . . . . . . 7-62
Long-Word Operand Request from $07 with
Burst Request and Wait Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-63
Long-Word Operand Request from $07 with
Burst Request — CBACK Negated Early. . . . . . . . . . . . . . . . . . . . . . . . . . 7-64
Long-Word Operand Request from $0E — Burst Fill Deferred . . . . . . . . . 7-65
Long-Word Operand Request from $07 with
Burst Request — CBACK and CIIN Asserted . . . . . . . . . . . . . . . . . . . . . . 7-66
MC68030 CPU Space Address Encoding . . . . . . . . . . . . . . . . . . . . . . . . . 7-69
Interrupt Acknowledge Cycle Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-71
Interrupt Acknowledge Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-72
Autovector Operation Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-73
Breakpoint Operation Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-75
Breakpoint Acknowledge Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-76
Breakpoint Acknowledge Cycle Timing (Exception Signaled) . . . . . . . . . . 7-77
Bus Error without DSACKx. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-84
Late Bus Error with DSACKx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-85
Late Bus Error with STERM — Exception Taken. . . . . . . . . . . . . . . . . . . . 7-86
Long-Word Operand Request — Late BERR on Third Access . . . . . . . . . 7-87
Long-Word Operand Request — BERR on Second Access . . . . . . . . . . . 7-88
Asynchronous Late Retry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-90
Synchronous Late Retry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-91
Late Retry Operation for a Burst . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-92
Halt Operation Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-93
Bus Synchronization Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-96
Bus Arbitration Flowchart for Single Request. . . . . . . . . . . . . . . . . . . . . . . 7-98
Bus Arbitration Operation Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-99
Bus Arbitration State Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-101
Single-Wire Bus Arbitration Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . 7-103
Bus Arbitration Operation (Bus Inactive) . . . . . . . . . . . . . . . . . . . . . . . . . . 7-104
Initial Reset Operation Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-105
Processor-Generated Reset Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-106
8-1 Reset Operation Flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
8-2 Interrupt Pending Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15
8-3 Interrupt Recognition Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
8-4 Assertion of IPEND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18
8-5 Interrupt Exception Processing Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
8-6 Examples of Interrupt Recognition and Instruction Boundaries . . . . . . . . . 8-20
8-7 Breakpoint Instruction Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
MOTOROLA
MC68030 USER’S MANUAL
xxxix