特性 Features

? Dual CPU subsystem

- 160-MHz (max) 32-bit Arm? Cortex?-M4F CPU with

? Single-cycle multiply

? Single-precision floating point unit (FPU)

? Memory protection unit (MPU)

- 100-MHz (max) 32-bit Arm? Cortex? M0+ CPU with

? Single-cycle multiply

? Memory Protection Unit

- Inter-processor communication in hardware

- Three DMA controllers

? Peripheral DMA controller #0 (P-DMA0) with 89 channels

? Peripheral DMA controller #1 (P-DMA1) with 33 channels

? Memory DMA controller #0 (M-DMA0) with 4 channels

? Integrated memories

- 1088 KB of code-flash with an additional 96 KB of work-flash

? Read-While-Write (RWW) allows updating the code-flash/work-flash while executing from it

? Single- and dual-bank modes (specifically for Firmware update Over The Air [FOTA])

? Flash programming through SWD/JTAG interface

- 128 KB of SRAM with selectable retention granularity

? Crypto engine[1]

- Supports enhanced Secure Hardware Extension (eSHE) and Hardware Security Module (HSM)

- Secure boot and authentication

? Using digital signature verification

? Using fast secure boot

- AES: 128-bit blocks, 128-/192-/256-bit keys

- 3DES[2]: 64-bit blocks, 64-bit key

- Vector unit[2] supporting asymmetric key cryptography such as Rivest-Shamir-Adleman (RSA) and Elliptic Curve (ECC)

- SHA-1/2/3[2]: SHA-512, SHA-256, SHA-160 with variable length input data

- CRC[2]: supports CCITT CRC16 and IEEE-802.3 CRC32

- True random number generator (TRNG) and pseudo random number generator (PRNG)

- Galois/Counter Mode (GCM)