AT91SAM9M11-CU

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The AT91SAM9M11-CU is a high-performance, low-power embedded microprocessor (MPU). It is part of the AT91SAM9M family of microprocessors, developed by Atmel Corporation, one of the major manufacturers of embedded microprocessors. It is designed to provide an excellent balance between performance, power efficiency and flexibility, making it an ideal choice for a wide range of embedded applications, such as consumer appliances, automotive, industrial, medical and military, as well as IoT (Internet of Things) applications.

The AT91SAM9M11-CU is based on an ARM926EJ-S processor core, operating at a maximum speed of up to 200 MHz, and features an MMU, an integrated LCD controller and a wide range of I/O, including USB, USART, I2C, and 10/100 Ethernet. Additionally, it integrates a broad range of advanced peripherals, such as up to 140K bytes of unified 4-level cache memory, four-lane or two-lane SDIO interface, interoperable CAN bus, two-lane or four-lane Direct (CSI) camera interface, LCD controller, QSPI interface for secure boot, and secure digital input/output (SDIO).

In terms of memory, the AT91SAM9M11-CU includes up to 16 Kbytes of RAM and 256 Kbytes of flash memory. The board also supports 3-2-3 reset circuitry, watchdog timer and systems on-chip monitoring. For power management, it features four system power modes, including a low-power deep-sleep mode, to reduce total system power consumption.

In terms of performance and flexibility, the AT91SAM9M11-CU can be used in variety of applications since it offers a wide range of integrated peripherals and low-power operation modes. Its range of integrated peripherals include up to 140 Kbytes of unified 4-level cache memory, four-lane or two-lane SDIO interface, interoperable CAN bus, two-lane or four-lane Direct (CSI) camera interface, a LCD controller and two- to four-lane SDIO interface for secure boot. This allows for optimal communication between the embedded system and other devices, such as displays, cameras, and storage.

In terms of working principle, the AT91SAM9M11-CU microprocessor works with a Von Neumann architecture, which combines the processor and memory in a single module. This architecture allows data to be transferred between the processor and memory via the same bus, increasing the efficiency of the microprocessor and reducing system complexity. The microprocessor is also equipped with an MMU, which allows it to manage memory accesses to various partitions, as well as to protect different applications from each other. This helps improve system security and reliability.

The AT91SAM9M11-CU is suitable for a wide range of embedded applications, and its low-power operations and flexibility make it an ideal choice for these applications. Its integrated peripherals provide optimal communication with other devices, and its Von Neumann architecture and MMU allow for efficient and secure system operation. Thus, the AT91SAM9M11-CU is a reliable and cost-effective solution for embedded applications.

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