MPC885ZP66

Embedded - Microprocessors

The MPC885ZP66 is an embedded microprocessor. It is a low-power System-on-Chip(SoC) which combines the features of a central processing unit (CPU) and a variety of peripheral components. The MPC885ZP66 offers users an integrated solution with low power consumption, high performance and cost efficiency.

Applications

The MPC885ZP66 is primarily used for power-sensitive applications such as automotive, consumer and home appliance markets. It can also be used in telecommunications and industrial control. Some of its common applications include cellular base stations, point-of-sale terminals, consumer video game systems, home gateway routers and single-board computers.

Features

The MPC885ZP66 provides a balanced mix of performance, functionality, and low-power consumption. Its features include a 5-stage pipeline, multicore multiprocessor with two CPUs, double-precision floating-point unit, vector signal processing unit, security system and a high-speed 256kbyte on-chip L2 cache.

It has a 33/66MHz system bus and up to five 32-bit PCI local buses. It also features multiple communication ports, including two 10/100 Ethernet controllers, one ATA/IDE, one Serial ATA, two USB 2.0 and two IEEE 1394a. With its Dual ARM Cortex-A17 cores, the MPC885ZP66 can deliver up to 2.2 GHz of clock speed.

Working Principle

The working principle of the MPC885ZP66 is to fetch executable instructions from memory and decode them into micro-operations. These micro-operations are then sent to the ALU for execution. The ALU is the only component of the processor to carry out arithmetic and logical operations. It does this by manipulating values stored in CPU registers, and outputting the resulting data at the end of the instruction execution cycle.

The microprocessor also contains a control unit that is responsible for managing the flow of instructions. It reads instructions from memory, decodes them and then sends the micro-operations to the ALU. When the ALU has executed the instructions, the control unit accesses memory to update the contents of registers and memory, and starts a new instruction execution cycle.

Conclusion

The MPC885ZP66 is an embedded microprocessor and is mainly used for power-sensitive applications. It features a 5-stage pipeline, multicore multiprocessor, vector signal processing unit, security system and on-chip L2 Cache. Its working principle is to fetch executable instructions from memory, decode them into micro-operations and send them to the ALU. The control unit then manages the flow of instructions and updates the contents of registers and memory when the ALU has executed the instructions.