MC68302EH20CB1

Embedded - Microprocessors

The MC68302EH20CB1 is a microprocessor with ColdFire core architecture from Freescale Semiconductor. It is designed for embedded applications such as instrumentation and control systems. The main features of the MC68302EH20CB1 include an on-chip Peripheral Component Interconnect (PCI) bus, a Double Data Rate Asynchronous DRAM controller (DDRAM), a two-channel Direct Memory Access (DMA) controller, four 16-bit timers, two USARTs, an interrupt controller, and a programming environment supporting the C language.

The main purpose of the MC68302EH20CB1 processor is to bridge communications between the devices in an embedded system. It is a 16-bit processor with a 32-bit bus (Bus Width Expansion). The processor operates on a variable clock frequency ranging from 12MHz to 25MHz, providing a wide range of speed and application flexibility. Additionally, it integrates an integrated Interrupt controller, Serial Peripheral Interface Bus (SPI), Parallel Peripheral Interface (PPI), and a 64-pin package.

The MC68302EH20CB1 processor supports the ColdFire instruction set. This architecture is based on the classic Motorola 68000 processor instruction set. The ColdFire instruction set is designed to provide a lower power consumption with better performance compared to other processors. The processor also supports the well-known C programming language with several extensions for embedded development.

The MC68302EH20CB1 provides several interfaces for external system memories. These include DMA controller, DDRAM controller, and a PPI interface. The processor is designed to support up to 64MB of system memory. The DDRAM controller supports high-speed data transfer, and the PPI interface provides a low-power interface for memory expansion or supporting other peripherals.

The MC68302EH20CB1 includes several additional features to expand the capabilities of an embedded system. It supports up to four 16-bit timers, a real-time clock and calendar, three USARTs, and an integrated interrupt controller. Additionally, the processor includes debugging and diagnostic features such as breakpoints, trace buffering and profiling, and address stepping. These debugging and diagnostic features are critical for troubleshooting difficult software and hardware problems.

The MC68302EH20CB1 is typically used in embedded applications such as instrumentation, networking and control systems. It is suitable for use in applications requiring a wide range of performance and low-power consumption. Additionally, the processor is designed for easy integration into development systems, as well as low-cost production systems, making it suitable for use in both large and small embedded systems.

In conclusion, the MC68302EH20CB1 is a powerful embedded microprocessor with a wide range of features and capabilities. This processor provides excellent performance, flexibility, and expandability in industrial and commercial applications. With its low-power design and debugging capabilities, the MC68302EH20CB1 is an ideal solution for embedded applications.