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11/3/95
SECTION 1: OVERVIEW
UM Rev.1.0
xvi
MC68349 USER’S MANUAL
MOTOROLA
LIST OF ILLUSTRATIONS
Figure
Page
Number
Title
Number
1-1
MC68349 Block Diagram ............................................................................. 1-1
2-1
Functional Signal Groups ............................................................................. 2-1
3-1
Input Sample Window .................................................................................. 3-2
3-2
Internal Operand Representation ................................................................. 3-6
3-3
MC68349 Interface to Various Port Sizes .................................................... 3-7
3-4
Long-Word Operand Write to Word Port Example....................................... 3-10
3-5
Long-Word Operand Write to Word Port Timing ......................................... 3-11
3-6
Word Operand Write to Byte Port Example ................................................. 3-12
3-7
Word Operand Write to Byte Port Timing ................................................... 3-13
3-8
Misaligned Long-Word Operand Write to Word Port Example .................... 3-14
3-9
Misaligned Long-Word Operand Write to Word Port Timing ....................... 3-15
3-10
Misaligned Word Operand Write to Word Port Example.............................. 3-16
3-11
Misaligned Word Operand Write to Word Port Timing ................................ 3-17
3-12
Misaligned Long-Word Operand .................................................................. 3-18
3-13
Misaligned Long-Word Operand .................................................................. 3-19
3-14
Fast Termination Timing .............................................................................. 3-22
3-15
Long-Word Read Cycle Flowchart .............................................................. 3-24
3-16
Byte Read Cycle Flowchart ......................................................................... 3-24
3-17
Byte and Word Read Cycles—32-Bit Port Timing ...................................... 3-25
3-18
Long-Word Read—16-Bit and 32-Bit Port Timing ....................................... 3-26
3-19
Long Word Write Cycle Flowchart ............................................................... 3-28
3-20
Read-Write-Read Cycles—32-Bit Port Timing ............................................. 3-29
3-21
Read-Modify-Write Cycle Timing ................................................................. 3-30
3-22
CPU Space Address Encoding .................................................................... 3-33
3-23
Breakpoint Operation Flowchart ................................................................. 3-35
3-24
Breakpoint Acknowledge Cycle Timing (Opcode Returned) ....................... 3-36
3-25
Breakpoint Acknowledge Cycle Timing (Exception Signaled) .................... 3-37
3-26
Interrupt Acknowledge Cycle Flowchart....................................................... 3-39
3-27
Interrupt Acknowledge Cycle Timing ........................................................... 3-40
3-28
Autovector Operation Timing ...................................................................... 3-42
3-29
Bus Error without DSACK≈ Timing............................................................... 3-46
3-30
Late Bus Error with DSACK≈ Timing ........................................................... 3-47
3-31
Retry Sequence Timing .............................................................................. 3-48
3-32
Late Retry Sequence Timing ....................................................................... 3-49
3-33
HALT Timing ............................................................................................... 3-51