MC68020RC25E Freescale Semiconductor, MC68020RC25E Datasheet - Page 11

• Manufacturer Part Number: MC68020RC25E
• Description: IC MICROPROC 32-BIT 25MHZ 114PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68020RC25E

• Processor Type: M680x0 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 114-PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: Q1165253

9/29/95
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MOTOROLA
Number
Figure
Write Cycle Flowchart ...................................................................................... 5-33
Read-Write-Read Cycles—32-Bit Port ............................................................. 5-34
Byte and Word Write Cycles—32-Bit Port ........................................................ 5-35
Long-Word Operand Write—8-Bit Port ............................................................ 5-36
Long-Word Operand Write—16-Bit Port........................................................... 5-37
Read-Modify-Write Cycle Flowchart ................................................................. 5-40
Byte Read-Modify-Write Cycle—32-Bit Port (TAS Instruction) ........................ 5-41
MC68020/EC020 CPU Space Address Encoding ............................................ 5-45
Interrupt Acknowledge Cycle Flowchart ........................................................... 5-46
Interrupt Acknowledge Cycle Timing................................................................ 5-47
Autovector Operation Timing ........................................................................... 5-49
Breakpoint Acknowledge Cycle Flowchart ....................................................... 5-50
Breakpoint Acknowledge Cycle Timing ............................................................ 5-51
Breakpoint Acknowledge Cycle Timing (Exception Signaled) .......................... 5-52
Bus Error without DSACK1/DSACK0 ............................................................. 5-57
Late Bus Error with DSACK1/DSACK0 .......................................................... 5-58
Late Retry......................................................................................................... 5-59
Halt Operation Timing ...................................................................................... 5-61
MC68020 Bus Arbitration Flowchart for Single Request .................................. 5-64
MC68020 Bus Arbitration Operation Timing for Single Request ...................... 5-65
MC68020 Bus Arbitration State Diagram ......................................................... 5-67
MC68020 Bus Arbitration Operation Timing—Bus Inactive ............................. 5-69
MC68EC020 Bus Arbitration Flowchart for Single Request ............................. 5-71
MC68EC020 Bus Arbitration Operation Timing for Single Request ................. 5-72
MC68EC020 Bus Arbitration State Diagram .................................................... 5-73
MC68EC020 Bus Arbitration Operation Timing—Bus Inactive ........................ 5-75
Interface for Three-Wire to Two-Wire Bus Arbitration ...................................... 5-76
Initial Reset Operation Timing .......................................................................... 5-77
RESET Instruction Timing ................................................................................ 5-78
Reset Operation Flowchart .............................................................................. 6-5
Interrupt Pending Procedure ............................................................................ 6-12
Interrupt Recognition Examples ....................................................................... 6-13
Assertion of IPEND (MC68020 Only) ............................................................... 6-14
Interrupt Exception Processing Flowchart ........................................................ 6-15
Breakpoint Instruction Flowchart ...................................................................... 6-18
RTE Instruction for Throwaway Four-Word Frame .......................................... 6-20
Special Status Word Format ............................................................................ 6-22
F-Line Coprocessor Instruction Operation Word.............................................. 7-3
Asynchronous Non-DMA M68000 Coprocessor Interface Signal Usage ......... 7-5
MC68020/EC020 CPU Space Address Encodings .......................................... 7-6
LIST OF ILLUSTRATIONS (Continued)
Freescale Semiconductor, Inc.
For More Information On This Product,
SECTION 1: OVERVIEW
Go to: www.freescale.com
M68020 USER’S MANUAL
Title
UM Rev 1
Number
Page
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