Cortex-M7 MCUs are structured for real-time tasks
With a memory architecture optimised for real-time deterministic code execution and low latency peripheral data access, they are Auto-qualified Cortex-M7-based MCUs with Ethernet AVB and Media LB Peripheral capabilities for Automotive Connectivity and Audio Applications. Four series of devices allow users to scale-up performance and deliver SRAM and system functionality, while keeping the Cortex-M processor family ease-of-use and maximising software reuse. The devices contain advanced memory architectures with up to 384 kB of multi-port SRAM memory out of which 256 kB can be configured as tightly-coupled memory delivering zero wait state access at 300 MHz. With over four times the performance of current Atmel ARM Cortex-M based MCUs running up to 300 MHz, larger configurable SRAM and higher bandwidth peripherals, they offer a connectivity, SRAM and performance mix for industrial, connectivity and automotive designs. All devices come with high-speed USB On-the-Go (OTG) and on-chip high-speed USB PHY and Flash memory densities of 512 kB, 1 MB and 2 MB.
Broadening the Atmel | SMART ARM Cortex-M based MCU portfolio, the new SAM E70 and the SAM S70 are suitable for connectivity and general purpose industrial applications, while the auto-grade SAM V70 and SAM V71 are ideal for in-vehicle infotainment, audio amplifiers, telematics and head unit control.
Atmel’s SAM S70 series is based on the ARM Cortex-M7 core plus a floating point unit (FPU) extending the general purpose product portfolio with maximum operating speeds up to 300 MHz, up to 2 MB of Flash, dual 16 kB of cache memory and up to 384 kB of SRAM with an extensive peripheral set including high-speed USB host and device plus high-speed PHY, up to 8 UARTs, I²S, SD/MMC interface, a CMOS camera interface, system control and analogue interfaces.
The SAM E70 series include a 10/100 Ethernet MAC and Dual CAN-FD interfaces with advanced analogue features making them ideal for connectivity applications. The SAM E70 is upwards compatible with Atmel’s SAM4E series.
The automotive-qualified SAM V70 and V71 series offer Ethernet AVB support and Media LB, which, when combined with the Cortex-M7 DSP extensions, make the series suitable for infotainment connectivity and audio applications. The series also offers the latest CAN 2.0 and CAN flexible data rate controller for higher bandwidth requirements.
Atmel adds that it is working closely with the ARM ecosystem partners on development tool support and RTOS BSPs for the new Atmel | SMART ARM Cortex-M7-based MCUs. Software development tools are available on Atmel Studio, the ARM MDK and IAR EWARM. Operating system support include Keil RTX, Segger embOS, FreeRTOS and Express Logic Thread-X. A set of peripheral driver examples and open source middleware is provided in Atmel’s Software Package. A full featured ATSAMV71-XULT Xplained evaluation kit supports the four series. The automotive series will come with complete AUTOSAR support and Ethernet-AVB stack.
Pricing for the SAM S70 starts at $4.80 (10,000); the Xplained board is $125.
Atmel; https://www.atmel.com/products/microcontrollers/arm/
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