MC8641THX1333JC

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Embedded - Microprocessors: MC8641THX1333JC application field and working principle

The MC8641THX1333JC is a member of the Freescale Semiconductor’s StarCore family of embedded microprocessors. It is designed to be used in embedded control applications where performance, complexity, and low cost are important.

The MC8641THX1333JC embedded microprocessor is based on the StarCore architecture, which is a tightly-integrated embedded processor core that has been specifically designed for low-power applications. It provides low power consumption, high performance, and flexible memory and I/O solutions for embedded microcontrollers.

Application Field:

The MC8641THX1333JC is ideal for embedded microcontroller applications, such as automotive, telecom, networking, consumer electronics, and industrial automation. It is also well-suited for other general purpose computing devices, such as digital signal processors, programmable logic devices, and embedded systems.

Features:

• 32-bit RISC processor core with SIMD and VLIW instructions
• Integrated hardware memory protection unit
• 8 KB instruction cache and 8 KB data cache, featuring write-back write-allocate policy
• Support for up to 8 DMA channels, external bus support and bus arbiter
• IEEE 1149.1 JTAG test port, 2-level interrupt controller
• Separate peripheral and external buses, on-chip debug module
• On-chip programmable peripherals include: UART, I2C, SPI, timers, etc.

Working Principle:

The MC8641THX1333JC utilizes a 32-bit RISC processor core that features a single instruction, multiple data (SIMD) and vector instruction set architecture (VISA), which increases performance and reduces complexity. The core has 8 KB of instruction cache and 8 KB of data cache, which provide storage for up to PL-1000 instructions. The memory protection unit prevents unauthorized code execution by enforcing memory access rights.

The instruction and data caches are organized into four-way set-associative caches that use a write-back write-allocate policy. This policy means that when a write operation occurs, the cache is updated first, before the instruction or data is stored in the system memory. This reduces memory latency by reducing the time required to access data from system memory.

The MC8641THX1333JC also has a 2-level interrupt controller that improves system performance by allowing the processor to prioritize interrupts and respond quickly to higher-priority requests. The processor also supports up to 8 DMA channels that can be used for data transfer operations.

The MC8641THX1333JC includes on-chip programmable peripherals such as a UART, I2C, SPI, and timers. These peripherals can be used to add functionality to the device while providing a more efficient way to transfer data. Additionally, the processor supports an external bus, which allows it to communicate with external devices such as memory, sensors, and other peripherals.

The MC8641THX1333JC also includes an on-chip debug module that provides tools for debugging embedded software. Additionally, the processor has an IEEE 1149.1 JTAG test port for testing system connectivity and state.

The MC8641THX1333JC provides a low power consumption, high performance solution for embedded microcontrollers. The processor is well-suited for embedded control applications where performance, complexity, and low cost are important.

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