General description

CYT2B6 is a family of TRAVEO™ T2G microcontrollers targeted at automotive systems such as body control units.

CYT2B6 has an Arm® Cortex®-M4 CPU for primary processing and an Arm® Cortex®-M0+ CPU for peripheral and

security processing. These devices contain embedded peripherals supporting Controller Area Network with

Flexible Data rate (CAN FD), and Local Interconnect Network (LIN). TRAVEO™ T2G devices are manufactured on

an advanced 40-nm process. CYT2B6 incorporates a low-power flash memory, multiple high-performance analog

and digital peripherals, and enables the creation of a secure computing platform.

Features

• Dual CPU subsystem

- 80-MHz (max) 32-bit Arm® Cortex®-M4F CPU with

• Single-cycle multiply

• Single-precision floating point unit (FPU)

• Memory protection unit (MPU)

- 80-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 54 channels

• Peripheral DMA controller #1 (P-DMA1) with 26 channels

• Memory DMA controller #0 (M-DMA0) with 2 channels

• Integrated memories

- 576 KB of code-flash with an additional 64 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

- 64 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)