Motorola MC68020RP16E is a CPU replaced by the MC68030 and is part of the M68000 family.
It was produced with different frequencies, from 12 MHz to 33.33 MHz.
Features of the MC68020 series:
- Object-Code Compatible with Earlier M68000 Microprocessors
- Addressing Mode Extensions for Enhanced Support of High-Level Languages
- New Bit Field Data Type Accelerates Bit-Oriented Applications—e.g., Video Graphics
- An On-Chip Instruction Cache for Faster Instruction Execution
- Coprocessor Interface to Companion 32-Bit Peripherals—the MC68881 and MC68882 Floating-Point Coprocessors and the MC68851 Paged Memory Management Unit
- Pipelined Architecture with High Degree of Internal Parallelism Allowing Multiple Instructions To Be Executed Concurrently
- High-Performance Asynchronous Bus Is Nonmultiplexed and Full 32 Bits
- Dynamic Bus Sizing Efficiently Supports 8-/16-/32-Bit Memories and Peripherals
- Full Support of Virtual Memory and Virtual Machine
- Sixteen 32-Bit General-Purpose Data and Address Registers
- Two 32-Bit Supervisor Stack Pointers and Five Special-Purpose Control Registers
- Eighteen Addressing Modes and Seven Data Types
- 4-Gbyte Direct Addressing Range for the MC68020
- 16-Mbyte Direct Addressing Range for the MC68EC020
- Selection of Processor Speeds for the MC68020: 16.67, 20, 25, and 33.33 MHz
- Selection of Processor Speeds for the MCEC68020: 16.67 and 25 MHz
