MC68040FE25V Freescale Semiconductor, MC68040FE25V Datasheet - Page 6
MC68040FE25V
Manufacturer Part Number
MC68040FE25V
Description
IC MICROPROCESSOR 32BIT 184-CQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68EC040FE33A.pdf
(442 pages)
Specifications of MC68040FE25V
Processor Type
M680x0 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
184-CQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
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Paragraph
4.1
4.2
4.3
4.3.1
4.3.1.1
4.3.1.2
4.3.2
4.3.3
4.4
4.4.1
4.4.2
4.4.3
4.4.4
4.5
4.6
4.6.1
4.6.2
4.7
4.7.1
4.7.2
5.1
5.2
5.3
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.3.7
5.3.8
5.3.9
5.4
5.4.1
viii
Number
Cache Operation ................................................................................... 4-2
Cache Management.............................................................................. 4-5
Caching Modes ..................................................................................... 4-6
Cache Protocol ..................................................................................... 4-7
Cache Coherency ................................................................................. 4-9
Memory Accesses for Cache Maintenance........................................... 4-11
Cache Operation Summary................................................................... 4-13
Address Bus (A31–A0) ......................................................................... 5-4
Data Bus (D31–D0) ............................................................................... 5-5
Transfer Attribute Signals...................................................................... 5-5
Bus Transfer Control Signals ................................................................ 5-8
Cachable Accesses ........................................................................... 4-6
Cache-Inhibited Accesses ................................................................. 4-7
Special Accesses .............................................................................. 4-7
Read Miss ......................................................................................... 4-8
Write Miss .......................................................................................... 4-8
Read Hit ............................................................................................ 4-8
Write Hit ............................................................................................. 4-8
Cache Filling...................................................................................... 4-11
Cache Pushes ................................................................................... 4-13
Instruction Cache............................................................................... 4-14
Data Cache........................................................................................ 4-15
Transfer Type (TT1, TT0) .................................................................. 5-5
Transfer Modifier (TM2–TM0) ........................................................... 5-6
Transfer Line Number (TLN1, TLN0)................................................. 5-6
User-Programmable Attributes (UPA1, UPA0) .................................. 5-7
Read/Write (R/W) .............................................................................. 5-7
Transfer Size (SIZ1, SIZ0) ................................................................ 5-7
Lock (LOCK) ...................................................................................... 5-7
Lock End (LOCKE) ............................................................................ 5-7
Cache Inhibit Out (CIOUT) ................................................................ 5-8
Transfer Start (TS) ............................................................................. 5-8
TABLE OF CONTENTS (Continued)
Write-Through Mode ...................................................................... 4-6
Copyback Mode ............................................................................. 4-6
Freescale Semiconductor, Inc.
For More Information On This Product,
Instruction and Data Caches
M68040 USER’S MANUAL
Go to: www.freescale.com
Signal Description
Section 4
Section 5
Title
MOTOROLA
Number
Page
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