MC68EC040RC25 Freescale Semiconductor, MC68EC040RC25 Datasheet - Page 6

• Manufacturer Part Number: MC68EC040RC25
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC040RC25

• Family Name: M68000
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 25MHz
• Instruction Set Architecture: RISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 179
• Package Type: PGA
• Lead Free Status / Rohs Status: Supplier Unconfirmed

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