MC68020 Motorola, MC68020 Datasheet - Page 2

• Manufacturer Part Number: MC68020
• Description: (MC68020 / MC68EC020) MICROPROCESSORS USERS MANUAL
• Manufacturer: Motorola

The M68020 User’s Manual describes the capabilities, operation, and programming of the
MC68020 32-bit, second-generation, enhanced microprocessor and the MC68EC020 32-
bit, second-generation, enhanced embedded microprocessor.
Throughout this manual, “MC68020/EC020” is used when information applies to both the
MC68020 and the MC68EC020. “MC68020” and “MC68EC020” are used when
information applies only to the MC68020 or MC68EC020, respectively.
For detailed information on the MC68020 and MC68EC020 instruction set, refer to
M68000PM/AD, M68000 Family Programmer’s Reference Manual .
This manual consists of the following sections:
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
Section 10
Section 11
Appendix A Interfacing an MC68EC020 to a DMA Device That Supports a Three-Wire
MOTOROLA
Introduction
Processing States
Signal Description
On-Chip Cache Memory
Bus Operation
Exception Processing
Coprocessor Interface Description
Instruction Execution Timing
Applications Information
Bus Arbitration Protocol
In this manual, assert and negate are used to specify forcing a
signal to a particular state. In particular, assertion and assert
refer to a signal that is active or true; negation and negate
indicate a signal that is inactive or false. These terms are used
independently of the voltage level (high or low) that they
represent.
Electrical Characteristics
Ordering Information and Mechanical Data
M68020 USER’S MANUAL
PREFACE
NOTE
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