Shenzhen Mingjiada Electronics Co., Ltd. supplies and recycles the TI AM2432BKFGHIALXR dual-core Arm Cortex-R5F MCU, a high-performance control core offering superior performance in both industrial communication and security.
I. Product Overview: A real-time control MCU designed specifically for demanding industrial environments
The TI AM2432BKFGHIALXR belongs to Texas Instruments’ Sitara™ series of high-performance industrial microcontrollers. It is a 32-bit dual-core MCU focused on high real-time performance, multi-protocol industrial communication and end-to-end information security. Equipped with dual Arm Cortex-R5F processing cores, it balances extreme computational efficiency, low-latency response and industrial-grade reliability, making it perfectly suited for industrial applications such as motor drives, remote I/O modules, industrial automation controllers, and smart sensing terminals—all of which demand stringent requirements for real-time control, communication interconnectivity, and data security. Built on a 16nm FinFET advanced process, it achieves a balance between high performance and low power consumption, meeting the requirements for stable operation across a wide industrial temperature range of -40°C to 125°C.
The AM2432BKFGHIALXR is housed in a 293-pin FCCSP package, offering a compact form factor and maximum integration. It features comprehensive peripheral interfaces, a hardware encryption module and an industrial communication accelerator, enabling the creation of streamlined, efficient and secure industrial control solutions without the need for additional expansion chips. It also supports functional safety-compliant design, helping industrial equipment to rapidly meet industry safety standards.
II. Core Computing Architecture: Dual-Core Cortex-R5F, Laying a Solid Foundation for Real-Time Control
High-Performance Core Configuration
The AM2432BKFGHIALXR is equipped with a dual-core Arm Cortex-R5F MCU subsystem, operating at a maximum clock speed of 800MHz. It supports flexible single-core and dual-core operating modes, balancing multi-task parallel processing with optimal single-task responsiveness. The Cortex-R5F core is specifically optimised for real-time control scenarios, offering extremely low interrupt latency, robust computational stability and memory protection capabilities. Combined with a core cache configuration of 32KB instruction cache and 32KB data cache, it significantly enhances instruction execution efficiency, meeting the millisecond or even microsecond response requirements of industrial control loops.
High-Reliability Memory Design
The AM2432BKFGHIALXR incorporates multiple memory resources with ECC correction, eliminating the risk of data errors and memory failures in industrial environments: each Cortex-R5F core is equipped with dedicated TCM (Tightly Coupled Memory); in dual-core mode, each core features 64KB of TCM, and 128KB per core in single-core mode; it also features 256KB of ECC SRAM and up to 2MB of on-chip OCSRAM with SECED ECC, which can be partitioned into eight independent memory groups in 256KB increments. These can be flexibly allocated to different cores, enabling software task partitioning and decoupling to ensure that multiple tasks run without interfering with one another. Furthermore, it supports LPDDR4 and DDR4 external memory expansion, featuring a 16-bit data bus with inline ECC and a maximum data transfer rate of 1600 MT/s, meeting the requirements for large-capacity data caching and high-speed read/write operations.
Auxiliary Processing and System Management
The AM2432BKFGHIALXR incorporates a 400MHz single-core Arm Cortex-M4F auxiliary core, capable of independently handling tasks such as system monitoring, peripheral management and security diagnostics. By working in tandem with the main core, it further enhances overall system efficiency; Paired with a dedicated Device Management Security Controller (DMSC-L), which acts as a centralised SoC system controller, it coordinates core services such as initial boot, security management, and clock/reset/power management. It communicates with various processing units via a dedicated message manager to achieve fine-grained system control and optimised resource scheduling.
III. Industrial Communication Capabilities: Multi-protocol Compatibility, Suitable for All Industrial Internet Scenarios
One of the core strengths of the AM2432BKFGHIALXR is its native support for mainstream industrial communication protocols. It integrates a dual-gigabit industrial communication subsystem (PRU_ICSSG) and comprehensive communication peripherals, breaking down barriers to industrial device interconnection and enabling high-speed, stable, and deterministic data transmission.
Industrial Ethernet and TSN Support
Equipped with two Gigabit Ethernet ports, it supports RGMII (10/100/1000 Mbps) and MII (10/100 Mbps) interface modes. It integrates a CPSW Ethernet switch and is compatible with IEEE 1588 (Annexes D, E, and F of 2008) and 802.1AS PTP time synchronisation protocols, achieving microsecond-level precise time synchronisation; The PRU_ICSSG subsystem fully supports mainstream industrial Ethernet protocols such as Profinet IRT/RT, EtherNet/IP, EtherCAT and TSN (Time-Sensitive Networking), whilst remaining compatible with traditional 10/100Mb PRU-ICSS devices. This ensures interoperability between new and legacy industrial equipment, meeting the high-speed communication and real-time networking requirements of digital factories.
Multiple Industrial Bus and Peripheral Interfaces
- Fieldbus Support: Equipped with a dedicated 192 MHz clock, supporting 12 Mbps PROFIBUS communication to adapt to traditional industrial bus scenarios; integrates two MCAN modules supporting CAN-FD to meet the short-range, high-reliability data transmission requirements of industrial equipment.
- General-purpose communication peripherals: Features 9 UART channels (including 16550-compatible interfaces), 6 I2C channels, and 7 multi-channel SPI interfaces, covering communication for standard sensing and control devices; 1 x 12-bit ADC (maximum sampling rate of 4 MSPS, 8 multiplexed analogue inputs), suitable for industrial analogue data acquisition scenarios.
- Dedicated control interfaces: Features 18 built-in Σ-Δ filter module (SDFM) interfaces, 6 multi-protocol position encoder interfaces, 9 EPWM channels, 3 ECAP channels and 3 EQEP modules, precisely tailored for core industrial applications such as motor control, servo drives and motion control, enabling high-precision position detection and pulse control.
High-Speed Expansion Interfaces
The AM2432BKFGHIALXR supports PCIe Gen2 and USB 3.1 DRD dual-role device interfaces, which can be flexibly configured in host or device mode to enable ultra-high-speed data transfer and peripheral expansion. Combined with MMCSD and OSPI/QSPI flash memory interfaces, it addresses both high-capacity storage expansion and high-speed boot requirements, comprehensively meeting the diverse communication and expansion needs of industrial equipment.
IV. End-to-End Security Framework: Hardware-Level Protection Safeguarding Industrial Data Security
To address security risks in industrial environments—such as data leaks, malicious attacks and firmware tampering—the AM2432BKFGHIALXR establishes a hardware-enforced, end-to-end security framework. This framework comprehensively safeguards device and data security throughout the entire lifecycle—from boot-up, transmission and storage to operation—ensuring compliance with Industrial Internet of Things (IIoT) security regulations.
Trusted Boot and Firmware Protection
The AM2432BKFGHIALXR supports hardware-enforced Root of Trust (RoT) secure boot, enabling the switching of the Root of Trust via a backup key to prevent the loading of unauthorised firmware at source. It features takeover protection, IP protection and anti-rollback protection mechanisms to prevent malicious control of the device, theft of core intellectual property, and firmware downgrading or tampering, thereby ensuring secure device boot and operational compliance.
Hardware Encryption and Key Management
The AM2432BKFGHIALXR incorporates a dedicated security coprocessor (DMSC-L) and a session-aware encryption engine, supporting hardware-level encryption acceleration. This enables high-speed encryption, decryption and authentication without consuming the main processor’s computational resources: it is compatible with mainstream encryption algorithms such as AES (128/192/256-bit), 3DES, MD5, SHA1, SHA2 (224/256/384/512-bit) and other mainstream encryption algorithms; equipped with a PKA public key accelerator to facilitate RSA/ECC encryption processing, suitable for secure boot and data signing scenarios; Integrated DRBG with a true random number generator (TRNG) ensures the randomness and security of key generation; key management is achieved through dedicated device-level interconnections, eliminating the risk of key leakage.
Transmission and Storage Security
The AM2432BKFGHIALXR supports a packet-based hardware encryption engine, enabling real-time encryption and authentication of network data payloads to ensure the security of industrial communication transmission; it supports real-time encryption of the OSPI interface (OTFE) in XIP mode, enabling dynamic encryption and decryption of external flash memory data, balancing boot speed with storage security; combined with secure storage, secure watchdog, timer and IPC mechanisms, it further strengthens data storage and device operation security.
Access Isolation and Debugging Security
The AM2432BKFGHIALXR incorporates a comprehensive firewall module, enabling granular isolation of the kernel, peripherals and memory regions to prevent unauthorised access and unauthorised operations; it supports software-controlled debugging access and security-aware debugging functions, eliminating the risk of debugging ports being maliciously exploited to compromise the device, thereby establishing a comprehensive security defence for industrial equipment.
V. Functional Safety and Industrial Adaptability: Meeting Stringent Industrial Compliance Requirements
The AM2432BKFGHIALXR is specifically developed for industrial functional safety scenarios. It has obtained IEC 61508 certification from TÜV SÜD, with hardware integrity compliant with SIL 2 and the system capable of meeting SIL 3 requirements, making it suitable for high-safety-level industrial control scenarios. Comprehensive built-in safety diagnostic mechanisms: critical memory features ECC/parity checking; the CPU and on-chip RAM support built-in self-test (BIST); the error signalling module (ESM) includes dedicated error pins; real-time monitoring of voltage, temperature and clock status; combined with a windowed watchdog and a CRC memory integrity verification engine, this enables real-time fault detection and alarm functions, ensuring the long-term stable operation of industrial equipment.
VI. Summary of Core Advantages
1. Maximum real-time performance: 800MHz dual-core Cortex-R5F + low-latency architecture, suitable for demanding industrial control timing requirements, handling multi-tasking in parallel with ease.
2. Comprehensive communication compatibility: Dual Gigabit PRU_ICSSG + multi-protocol support, covering mainstream industrial Ethernet and fieldbus standards, with TSN support for digital factories.
3. Hardware-Enabled Security: End-to-end hardware security protection, including trusted boot, hardware encryption and access isolation, safeguarding industrial data and equipment security.
4. Industrial-Grade High Reliability: Wide-temperature operation, ECC memory and functional safety certification, withstanding harsh industrial environments and mitigating failure risks.
5. Ultra-High Integration: Compact packaging and rich peripherals reduce the need for external components, lowering solution costs and footprint whilst simplifying development and design.
VII. Typical Application Scenarios
- Industrial Motion Control: Servo drives, motor controllers, CNC machine tools; leveraging high real-time performance and encoder interfaces to achieve high-precision motion control.
- Industrial Automation: PLC controllers, remote I/O modules, distributed control systems; supporting multi-protocol communication and security management, suitable for factory networking.
- Smart Industrial Terminals: Industrial gateways, sensor acquisition terminals, smart instruments; enabling high-speed data transmission, encrypted uploads and edge computing.
- Industrial Robots: Joint controllers, vision-coordination modules; ensuring safe and stable collaborative robot operation through TSN time synchronisation and security protection.
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