Motorola MC68EC030

MC68EC030 일반적인 설명

Second-Generation 32-Bit Enhanced Embedded ControllerThe MC68EC030 is a 32-bit embedded controller that streamlines the functionality of an MC68030 for the requirements of embedded control applications.  The MC68EC030 is optimized to maintain performance while using cost-effective memory subsystems. The rich instruction set and addressing mode capabilities of the MC68020, MC68030, and MC68040 have been maintained, allowing a clear migration path for M68000 systems. The main features of the MC68EC030 are as follows: Object-Code Compatible with the MC68020, MC68030, and Earlier M68000 Microprocessors Burst-Mode Bus Interface for Efficient DRAM Access On-Chip Data Cache (256 Bytes) and On-Chip Instruction Cache (256 Byte) Dynamic Bus Sizing for Direct Interface to 8-, 16-, and 32-Bit Devices 25- and 40-MHz Operating Frequency (up to 9.2 MIPS) Advanced Plastic Pin Grid Array Packaging for Through-Hole ApplicationsAdditional features of the MC68EC030 include:  Complete 32-Bit Nonmultiplexed Address and Data Buses  Sixteen 32-Bit General-Purpose Data and Address Registers  Two 32-Bit Supervisor Stack Pointers and Eight Special-Purpose Control Registers  Two Access Control Registers Allow Blocks To Be Defined for Cacheability Protection  Pipelined Architecture with Increased Parallelism Allows:– Internal Caches Accesses in Parallel with Bus Transfers– Overlapped Instruction Execution  Enhanced Bus Controller Supports Asynchronous Bus Cycles (three clocks minimum),Synchronous Bus Cycle (two clocks minimum), and Burst Data Transfers (one clock)  Complete Support for Coprocessors with the M68000 Coprocessor Interface Internal Status Indication for Hardware Emulation Support  4-Gbyte Direct Addressing Range  Implemented in Motorolas HCMOS Technology That Allows CMOS and HMOS (High-DensityNMOS) Gates To Be Combined for Maximum Speed, Low Power, and Small Die Size

특징

• 32-bit microprocessor
• Clock speed of up to 33 MHz
• Embedded memory management unit (MMU)
• Compatible with the Motorola 68000 instruction set
• Can address up to 4 GB of physical memory
• Supports virtual memory management and multitasking
• Includes on-chip caches for data and instructions
• Supports both big-endian and little-endian modes

애플리케이션

• Embedded systems
• Industrial control systems
• Networking equipment
• Telecommunications systems
• Personal computers and workstations

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