MC9328MX21CVKR2

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Microcontrollers like the MC9328MX21CVKR2 are widely used in a variety of embedded applications. This microcontroller is based on the ARM926EJ-S processor and runs an ARMv5TEJ instruction set. It is designed to provide a low-power, high performance 32-bit general-purpose processor core with comprehensive interrupt support, memory protection unit, and an expansive set of peripherals.

The MC9328MX21CVKR2 primarily targets applications like automotive, industrial control, automotive infotainment and consumer audio/video, that require low power consumption or cost-sensitive single-chip solutions. It is also used in set-top boxes, point-of-sale systems, wireless access points and VoIP gateways, digital still cameras, gaming devices, etc.

The MC9328MX21CVKR2 microcontroller can operate from a wide range of power sources including 1.8V to 3.3V. It supports MC9328MX21CVKR2/Nand Flash bootloader, expansion memory, serial Flash memory, SDRAM and LCD controller. It uses Advanced Power Management to provide intelligent power management for the processor core, peripherals, system clock and memory technologies.

The MC9328MX21CVKR2 typically includes the following features:

• 32-bit ARM926EJ-S processor core clocked at up to 300MHz
• 512KB or 256KB on-chip Flash memory
• 128KB on-chip SRAM
• 128KB internal SRAM
• 4KB dedicated SRAM for bootstrap operation
• 6-channel DMA controller
• 2 dedicated UARTs
• 2 Universal Serial Bus (USB) 2.0 host ports
• 1 SDRAM controller
• One 10/100Mbit Ethernet controller
• One LCD controller
• I2C, SPI, PWM and timer interfaces
• Support for a wide range of memory types (NAND Flash, SPI Flash, NOR Flash, SRAM, etc.)
• Integrated audio and video codecs
• Powerful debugging features including real-time execution capability

The MC9328MX21CVKR2 is a very capable and versatile microcontroller. It has the advantage of being low power, and its low cost makes it suitable for embedded applications where cost-effectiveness is important.

The working principle behind the MC9328MX21CVKR2 microcontroller is simple yet powerful. The microcontroller is partitioned into several areas, each limited by specific physical boundaries. This enables the processor to store and execute programs stored in its on-chip Flash memory. When the controller is powered up, it reads the start address, which it then uses to load the program code into its memory. From there, the processor begins to execute the instructions in the program code while continuing to monitor the signal inputs and outputs.

The MC9328MX21CVKR2 provides support for various protocols like UART communication, USB peripherals, digital audio/video and Ethernet communication. These protocols are used to interface with external systems like displays, keyboards, storage media, and digital audio/video devices. The processor also has the ability to store data in its internal memory and access it quickly, making it suitable for audio/video processing applications.

The MC9328MX21CVKR2 is a low-power, cost-effective microcontroller suitable for a variety of embedded applications. It features a powerful 32-bit ARM926EJ-S processor core, integrated memory, and a comprehensive set of peripherals. Combined with its advanced power management features, it can provide a low-cost solution to embedded applications that require a powerful yet cost-effective processor.

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