ATSAMA5D41A-CU Просмотр технического описания (PDF) - Atmel Corporation

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ATSAMA5D41A-CU

SMART ARM-based Embedded MPU

Atmel Corporation 

SAMA5D41 / SAMA5D42

SAMA5D43 / SAMA5D44

Atmel | SMART ARM-based Embedded MPU

DATASHEET

Description

The Atmel® | SMART SAMA5D4 Series is a high-performance, power-efficient

ARM® Cortex®-A5 processor MPU capable of running up to 600 MHz. It integrates

the ARM NEON™ SIMD engine for accelerated signal processing, multimedia

and graphics as well as a 128 KB L2-Cache for high system performance. The

device features the ARM TrustZone® enabling a strong security perimeter for

critical software, as well as several hardware security features. The device also

features advanced user interface and connectivity peripherals.

The SAMA5D4 devices have three software-selectable low-power modes: Idle,

Ultra-low-power, and Backup. In Idle mode, the processor is stopped while all

other functions can be kept running at normal operating bus frequency. In Ultra-

low-power mode, the processor is stopped while all other functions can be kept

running at minimum operating bus frequency. In Backup mode, only the real-time

clock, real-time timer, backup SRAM, backup registers, and wakeup logic are

running.

The SAMA5D4 features an internal multi-layer bus architecture associated with 32

DMA channels to sustain the high bandwidth required by the processor and the

high-speed peripherals. The device supports DDR2/LPDDR/LPDDR2 and

SLC/MLC NAND Flash memory with 24-bit ECC.

The comprehensive peripheral set includes a 720p hardware video decoder, an

LCD controller with overlays for hardware-accelerated image composition, a

resistive touchscreen function, and a CMOS sensor interface. Connectivity

peripherals include a dual 10/100 Ethernet MAC with IEEE1588, three HS USB

ports, UARTs, SPIs and I2Cs.

Security features includes an “on-the-fly” encryption-decryption process from the

external DDR memory, tamper detection pins, secure storage of critical data, an

integrity check monitor (ICM) to detect modification of the memory contents and a

secure boot. The product also includes a dedicated coprocessor for public key

cryptography such as RSA and elliptic curves algorithms (ECC), as well as AES,

3DES, SHA function and TRNG. These features permit to protect the system

against counterfeiting, to safeguard sensitive data, authenticate safe program or

secure external data transfers.

The SAMA5D4 series is optimized for control panel/HMI applications needing

video playback and applications that require high levels of connectivity in the

industrial and consumer market. Its security features make the SAMA5D4 well

suited for secure gateways or for the IoT.

Atmel-11238C-ATARM-SAMA5D4-Datasheet_12-Jul-16

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