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Motorola MC68020RC12E
"Description"
by RS232 (2058 pt)
2019-Jun-24 19:39

Review Consensus: 8 Rating: 8 Number of users: 1
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The Motorola MC68020RP16E is a CPU then replaced by the MC68030 and is part of the M68000 family.

This version is ceramic and golden.

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

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