The ATSAMA5D44A-CU is a high-performance power-efficient ARM? Cortex?-A5 Processor MPU capable of running up to 600MHz. It integrates the ARM NEON? SIMD engine for accelerated signal processing, multimedia and graphics as well as a 128kB 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 device has three software-selectable low-power modes of 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 wake-up logic are running.
- ARM Cortex-A5 core
- 32kB Data cache and instruction cache
- 128kB L2 cache
- One 128kB scrambled internal SRAM, single-cycle access at system speed
- EBI (external bus interface) supporting
- Internal regulator
- One 600 to 1200MHz PLL for the system and one PLL at 480MHz optimized for USB high speed
- Internal low-power 12MHz RC oscillator
- Low-power 32kHz RC oscillator
- Two 64-bit, 16-channel DMA controller
- 64-bit Advanced interrupt controller
- 64-bit Secure advanced interrupt controller
- Three programmable external clock signals
- Programmable fuse box with 512 fuse bits available for customer, including JTAG protection
- ITU-R BT. 601/656 image sensor interface (ISI)
- One USB device high-speed, three USB host high-speed with on-chip transceiver
- Two 10/100Mbps Ethernet MAC controllers with IEEE 1588 v2 support
- Software modem interface (SMD)
- Safety - power-ON reset cells, independent watchdog and main crystal clock failure detection
- Security - 512 bits of scrambled and erasable registers and Atmel secure boot
计算机和计算机周边, 信号处理
(EN)
