MPC860DTVR66D4

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MPC860DTVR66D4 is a 8-bit 16-bit microprocessor developed by Freescale Semiconductor. It belongs to the MPC8260-based MPC860 series of embedded microprocessors. It features a powerful system (including a sapphire memory controller, four 32-bit timers, an advanced peripheral bus controller, extensive on-chip and external memory control, extensive interrupt and DMA capabilities, and more).

Application Field

The MPC860DTVR66D4 is widely used in the field of embedded computing, such as medical equipment, printers, home electronic appliances and industrial instruments. It is an ultra-high-performance 8-bit microprocessor designed to provide advanced real-time control functions, high-speed bus communication, and comprehensive system management. Its privileged instruction set, on-chip I/O subsystem, interrupt, timer and cache management functions make it well suited for high-speed processing applications. It is ideal for applications requiring support for operating systems such as VxWorks, Linux, and Windows XP Embedded.

Working Principle

The working principle of MPC860DTVR66D4 microprocessor is based on its 8-bit system architecture. Its processor core consists of 16-bit internal registers and an 8-bit ALU. The ALU is responsible for arithmetic and logical operations on the internal registers. Its instruction set is optimized for real-time processing. Its single-cycle execution time is about 400-500ns for most instructions. It has vector multiplication and saturation logic to enable arithmetic functions like multiply/accumulate (MAC) operations.

The MPC860DTVR66D4 microprocessor utilizes a Memory Management Unit (MMU) to manage the access of various data and instructions from external peripherals. The MMU is responsible for mapping the physical addresses of external peripherals on to the processor\'s address space. It consists of 16 global physical address maps and 4protection regions for the program memory and data memory. The MMU also provides virtual memory functions, such as page translation. In addition, the on-chip cache controllers support direct mapped, set-associative, and fully associative caching.

To manage the communication between the MPC860DTVR66D4 and external peripherals, a Peripheral Bus Controller (PBC) is incorporated. The PBC is responsible for controlling the address and data transfer to and frommemory and I/O devices connected to the processor. The PBC is capable of efficiently managing multiple data and instruction transfer requests, and provides support for DMA, serial ports, and timers. The PBC also has an integrated timer for interrupt control.

The MPC860DTVR66D4 also integrates coprocessors and specialized serial peripherals for communications. These include an advanced serial communication controller (SCC), an enhanced local bus controller (ELBC), an integrated module blocking unit (IMB), and an optical link local bus. These coprocessors can be programmed to handle serial communication protocols such as USART, Ethernet, and multiprotocol synchronous serial controller (MPCS).

The MPC860DTVR66D4 is also capable of handling multimedia Processing tasks. It is equipped with an on-chip JPEG compressor, video/audio codecs, advanced digital signal processing (DSP) instruction set and a slave processor. The JPEG compressor can compress data at speeds up to 100 Mbytes/s, and the video/audio codecs support standard video/audio formats including MPEG-1, MPEG-2, and WaveAudio. The advanced DSP instruction set provides high-speed signal processing functions.

Due to its powerful features and robust system performance, the MPC860DTVR66D4 is well suited for embedded applications in the medical, industrial, printer, and smart home appliance domains. It also provides excellent support for operating systems such as Embedded Linux, VxWorks, and Windows XP Embedded.

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