EP9307-CR

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Application of EP9307-CR Embedded Microprocessor

The EP9307-CR embedded microprocessor was developed by Cirrus Logic Inc. as a low-cost, low-power processor based on the ARM9 processor core. The device is designed to provide strong performance, small footprint and low power consumption. It is suitable for embedded applications such as consumer, industrial, networking and communications.

The EP9307-CR has a wide range of features and benefits, including:

• 128KB of on-chip static RAM (SRAM), and 64KB of on-chip SRAM for data storage.
• A built-in DMA controller, fast interrupt handling, and an advanced bus architecture.
• A 10/100 Ethernet Media Access Controller (MAC) supporting full-duplex operation.
• Three UARTs, one CAN port and an SPI interface.
• Flash memory interface supporting NOR and NAND.
• Two 32-bit timers and one 16-bit timer.
• USB 2.0 full-speed host port and two USB 1.1 full-speed device ports.

The EP9307-CR incorporates an ARM9EJ-S processor core operating at up to 300MHz. It also includes a range of peripherals to support a variety of embedded applications. These peripherals include: two 10/100 Ethernet media access controllers, a CAN bus controller, a three UARTs, I2C bus controller, a PWM controller, gate array, and an 8/16 bit general-purpose I/O (GPIO) controller.

The EP9307-CR is also integrated with multiple memory controllers to support both static RAM (SRAM) and flash memory. These memory controllers provide flexible and high-performance access to SRAM and flash memory devices including NOR and NAND Flash. The EP9307-CR can also be used as an automotive multiple system processor for networking, security, and diagnostics applications.

The EP9307-CR has the following features: EJTAG debugging, real-time clock, interrupt controller, power-saving mode (PSM) controller, multiple low power modes, cache memory, and dynamic voltage scaling (DVS). The device is available in two package types, 128-pin LQFP and 176-pin LQFP. It has an operating temperature range from -40°C to +85°C.

Working Principle of EP9307-CR Embedded Microprocessor

The EP9307-CR is a low-power embedded processor based on the ARM9 processor core. The device incorporates an ARM9EJ-S processor core operating at up to 300 MHz, 128KB of on-chip SRAM, and 64KB of on-chip SDRAM. The device is designed to provide high performance while consuming minimal power.

The microprocessor utilizes the ARM 9 instruction set architecture (ISA). This architecture provides a high-performance and power-efficient instruction set combined with an advanced multiprocessing system. The processor supports two levels of interrupt service, two instruction pipelines and two coprocessors. The processor also supports data and instruction caches, memory management, and system protection features.

The EP9307-CR provides efficient power management features such as dynamic voltage scaling (DVS). This feature enables the processor to operate at different voltage levels depending on the current system load, reducing power consumption and improving system performance. The processor also supports system sleep modes, allowing it to enter low power states for reduced power consumption.

The EP9307-CR also features a wide range of peripherals including two 10/100 Ethernet media access controllers, a CAN bus controller, a three UARTs, an I2C bus controller, a PWM controller, gate array, and an 8/16 bit GPIO controller. The device also includes a wide range of memory controllers which support both static RAM (SRAM) and flash memory devices, as well as a variety of external interfaces, including USB, LPC, and I2C.

The EP9307-CR is well suited for use in a range of embedded applications such as consumer, industrial, networking, and communications. It provides a combination of low cost, small footprint, and low power consumption while delivering a high-performance processor core. The device has a wide range of features and peripherals, making it suitable for a variety of embedded applications.

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