Page 38 - EngineerIT October 2022

NEW PRODUCTS AND SERVICES

Microcontroller with built-in functional safety and

cybersecurity protection

anufacturers of electronic TA100 CryptoAutomotive™ security ICs, is compliant to ISO/SAE 21434, the new
systems ranging from Cybersecurity Standard for Automotive. The TA100 employs ultra-secure hardware-
Mvehicles to home based cryptographic key storage and cryptographic countermeasures to eliminate
appliances are moving towards potential backdoors linked to software weaknesses.
automating and connecting end “With the PIC32CM JH MCU, Microchip is addressing the growing need for
applications, spurring the need microcontroller solutions that are designed with functional safety and cybersecurity
for industry standards related to protection, which is particularly important in the automotive industry,” said Rod Drake
functional safety and cybersecurity vice president of Microchip Technology’s 32-bit MCU business unit.
protection to ensure their products “OEMs and other manufacturers now have the option to use an entry-level Arm
operate safely and securely. To Cortex-M0+ based MCU to meet compliance requirements previously only available
provide manufacturers with an MCU on higher-end MCUs.”
solution equipped with components The secure boot is part of the hardware. It authenticates the code to make sure
that meet ISO 26262 functional safety it is valid and prevents malicious code from being loaded onto the MCU. Other
and ISO/SAE 21434 cybersecurity hardware features included on the PIC32CM JH MCU are Error Correction Code (ECC)
engineering standards, Microchip with fault injection, loopbacks on the communications interfaces, system memory
Technology has announced the protection unit and MBIST, all of which are safety mechanisms used to meet ISO
PIC32CM JH microcontroller (MCU). 26262 and IEC 60730 standards.
This is the industry’s first MCU- MBIST is the industry-standard method of testing embedded memories and can
based on the Arm® Cortex®-M0+ quickly test the integrity of the Static Random-Access Memory (SRAM) to ensure it is
architecture with AUTOSAR support, functioning properly before the code is run to mitigate failures. To support developers
Memory-Built-In Self-Test (MBIST) with implementation, the PIC32CM JH comes with functional safety collateral such
and secure boot. as a safety manual, Failure Modes Effects and Diagnostic Analysis (FMEDA) and
The PIC32CM JH is compatible diagnostic code targeting ISO 26262 ASIL B (Automotive Safety Integrity Level) safety
with AUTOSAR, an open software levels.
architecture, providing suppliers Additionally, the PIC32CM JH includes advanced touch with Driven Shield Plus,
with the ability to change to lower- providing noise- and water-tolerant operability. This feature is necessary for home
level hardware but keep the original appliances, industrial and automotive applications where the touch must work in a
application code, making it easier to variety of harsh environments.
migrate between different designs. Microchip is represented in South Africa by Altron Arrow.
AUTOSAR-ready is designed to
streamline the development process For more details email Andrew at aathanasiou@arrow.altech.co.za
and reduce overall costs. When
using AUTOSAR, Microchip offers
ASIL B microcontroller abstraction
layers (MCALs) for functional safety
applications — providing the lower-
level hardware interface to the MCU.
Automotive industry OEMs
require both functional safety and
cybersecurity protection for many in-
vehicle applications including touch
buttons and touch wheels, door
controls and console controls, and
body applications such as Advanced
Driver Assistance Systems (ADAS).
The PIC32CM JH, when paired with
one of Microchip’s Trust Anchor

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