Описание
The Microchip | SMART SAM4C microcontrollers are system-on-chip solutions for smart energy applications, built around two high-performance 32-bit ARM Cortex -M4 RISC processors. These devices operate at a maximum speed of 120 MHz and feature up to 2 Mbytes of embedded Flash, up to 304 Kbytes of SRAM and on-chip cache for each core. The dual ARM Cortex-M4 architecture allows for integration of an application layer, communications layers and security functions in a single device, with the ability to extend program and data memory via a 16-bit external bus interface. The peripheral set includes advanced cryptographic engine, anti-tamper, floating point unit (FPU), USB Full-speed Host/Device port, five USARTs, two UARTs, two TWIs, up to seven SPIs, as well as a PWM timer, two 3-channel general-purpose 16-bit timers, calibrated low-power RTC running on the backup domain down to 0.5 µA, and a 50 × 6 segmented LCD controller. The SAM4C series is a scalable platform providing, alongside Microchip"s industry leading SAM4 standard microcontrollers, unprecedented cost structure, performance and flexibility to smart meter designers worldwide.
- Application/Master Core
- ARM Cortex-M4 running at up to 120 MHz(1)
- Memory Protection Unit (MPU)
- DSP Instruction
- Thumb®-2 instruction set
- Instruction and Data Cache Controller with 2 Kbytes Cache Memory
- Memories. Up to 2 Mbytes of Embedded Flash for Program Code (I-Code bus) and Program Data (D-Code bus) with Built-in ECC (2-bit error detection and 1-bit correction per 128 bits). Up to 256 Kbytes of Embedded SRAM (SRAM0) for Program Data (System bus). 8 Kbytes of ROM with embedded bootloader routines (UART) and In-Application Programming (IAP) routines
- ? Coprocessor (provides ability to separate application, communication or metrology functions)
- ARM Cortex-M4F running at up to 120 MHz(1)
- IEEE® 754 Compliant, Single-precision Floating-Point Unit (FPU)
- DSP Instruction
- Thumb-2 instruction set
- Instruction and Data Cache Controller with 2 Kbytes of Cache Memory
- Memories. Up to 32 Kbytes of Embedded SRAM (SRAM1) for Program Code (I-Code bus) and Program Data(D-Code bus and System bus). Up to 16 Kbytes of Embedded SRAM (SRAM2) for Program Data (System bus).
- Symmetrical/Asynchronous Dual Core Architecture ? Interrupt-based Interprocessor Communication
- Interrupt-based Interprocessor Communication
- Asynchronous Clocking?
- One Interrupt Controller (NVIC) for each core
- Each Peripheral IRQ routed to each NVIC Input
- Cryptography
- High-performance AES 128 to 256 with various modes (GCM, CBC, ECB, CFB, CBC-MAC, CTR)
- TRNG (up to 38 Mbit/s stream, with tested Diehard and FIPS)
- Public Key Crypto accelerator and associated ROM library for RSA, ECC, DSA, ECDSA
- Integrity Check Module (ICM) based on Secure Hash Algorithm (SHA1, SHA224, SHA256), DMA-assisted
- Safety
- Up to four physical Anti-tamper Detection I/Os with Time Stamping and Immediate Clear of General Backup Registers
- Security Bit for Device Protection from JTAG Accesses
