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MC68030RC33 bảng dữ liệu(PDF) 7 Page - Motorola, Inc

tên linh kiện MC68030RC33
Giải thích chi tiết về linh kiện  ENHANCED 32-BIT MICROPROCESSOR
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MC68030RC33 bảng dữ liệu(HTML) 7 Page - Motorola, Inc

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MC68030 USER’S MANUAL
MOTOROLA
TABLE OF CONTENTS (Continued)
Paragraph
Number
Title
Page
Number
5.12
Clock (CLK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5.13
Power Supply Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5.14
Signal Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Section 6
On-Chip Cache Memories
6.1
On-Chip Cache Organization and Operation . . . . . . . . . . . . . . . . . . . 6-3
6.1.1
Instruction Cache. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6.1.2
Data Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6.1.2.1
Write Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
6.1.2.2
Read-Modify-Write Accesses. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
6.1.3
Cache Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
6.1.3.1
Single Entry Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
6.1.3.2
Burst Mode Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
6.2
Cache Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
6.3
Cache Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
6.3.1
Cache Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
6.3.1.1
Write Allocate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
6.3.1.2
Data Burst Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
6.3.1.3
Clear Data Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
6.3.1.4
Clear Entry in Data Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
6.3.1.5
Freeze Data Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
6.3.1.6
Enable Data Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
6.3.1.7
Instruction Burst Enable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
6.3.1.8
Clear Instruction Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
6.3.1.9
Clear Entry in Instruction Cache . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
6.3.1.10
Freeze Instruction Cache. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
6.3.1.11
Enable Instruction Cache. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
6.3.2
Cache Address Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
Section 7
Bus Operation
7.1
Bus Transfer Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1.1
Bus Control Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.1.2
Address Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
7.1.3
Address Strobe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
7.1.4
Data Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7.1.5
Data Strobe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7.1.6
Data Buffer Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7.1.7
Bus Cycle Termination Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7.2
Data Transfer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
7.2.1
Dynamic Bus Sizing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6


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