AM6442
Processor cores:
- 1× Dual 64-bit Arm
Cortex-A53 microprocessor subsystem
at up to 1.0GHz
- Dual-core Cortex-A53 cluster with 256KB L2 shared cache with SECDED ECC
- Each A53 Core has 32KB L1 DCache with SECDED ECC and 32KB L1 ICache with Parity protection
- Up to 2× Dual-core Arm
Cortex-R5F MCU subsystems at up to
800MHz, integrated for real-time processing
- Dual-core Arm Cortex-R5F supports dual-core and single-core modes
- 32KB ICache, 32KB DCache and 64KB TCM per each R5F core for a total of 256KB TCM with SECDED ECC on all memories
- 1× Single-core Arm
Cortex-M4F MCU at up to 400MHz
- 256KB SRAM with SECDED ECC
Industrial subsystem:
- 2× gigabit Industrial
Communication Subsystems (PRU_ICSSG)
- Supports Profinet IRT, Profinet RT, EtherNet/IP, EtherCAT, Time-Sensitive Networking (TSN), and more
- Backward compatibility with 10/100Mb PRU_ICSS
- Each PRU_ICSSG
contains:
- 2× Ethernet
ports
- MII (10/100)
- RGMII (10/100/1000)
- 6 PRU RISC cores
per PRU_ICSSG each core having:
- Instruction RAM with ECC
- Broadside RAM
- Multiplier with optional accumulator (MAC)
- CRC16/32 hardware accelerator
- Byte swap for Big/Little Endian conversion
- SUM32 hardware accelerator for UDP checksum
- Task Manager for preemption support
- Three Data RAMs with ECC
- 8 banks of 30 × 32-bit register scratchpad memory
- Interrupt controller and task manager
- Two 64-bit Industrial Ethernet Peripherals (IEPs) for time stamping and other time synchronization functions
- 18× Sigma-Delta
filters
- Short circuit logic
- Over-current logic
- 6× Multi-protocol position encoder interfaces
- One Enhanced Capture Module (ECAP)
- 16550-compatible UART with a dedicated 192MHz clock to support 12Mbps PROFIBUS
- 2× Ethernet
ports
Memory subsystem:
- Up to 2MB of On-chip RAM (OCSRAM)
with SECDED ECC:
- Can be divided into smaller banks in increments of 256KB for as many as 8 separate memory banks
- Each memory bank can be allocated to a single core to facilitate software task partitioning
- DDR Subsystem (DDRSS)
- Supports LPDDR4, DDR4 memory types
- 16-Bit data bus with inline ECC
- Supports speeds up to 1600MT/s
- 1× General-Purpose Memory
Controller (GPMC)
- 16-Bit parallel bus with 133MHz clock or
- 32-Bit parallel bus with 100MHz clock
- Error Location Module (ELM) support
System on Chip (SoC) Services:
- Device Management Security
Controller (DMSC-L)
- Centralized SoC system controller
- Manages system services including initial boot, security, and clock/reset/power management
- Communication with various processing units over message manager
- Simplified interface for optimizing unused peripherals
-
Data Movement Subsystem (DMSS)
- Block Copy DMA (BCDMA)
- Packet DMA (PKTDMA)
- Secure Proxy (SEC_PROXY)
- Ring Accelerator (RINGACC)
Security:
- Secure boot supported
- Hardware-enforced Root-of-Trust (RoT)
- Support to switch RoT via backup key
- Support for takeover protection, IP protection, and anti-roll back protection
- Trusted
Execution Environment (TEE) supported
- Arm TrustZone based TEE
- Secure watchdog/timer/IPC
- Extensive firewall support for isolation
- Secure storage support
- Replay Protected Memory Block (RPMB) support
- Security co-processor (DMSC-L) for key and security management, with dedicated device level interconnect for security
- Cryptographic acceleration
supported
- Session-aware
cryptographic engine with ability to auto-switch key-material based on
incoming data stream
- Supports cryptographic cores
- AES – 128-/192-/256-Bit key sizes
- SHA2 – 224-/256-/384-/512-Bit key sizes
- DRBG with true random number generator
- PKA (Public Key Accelerator) to Assist in RSA/ECC processing for secure boot
- Session-aware
cryptographic engine with ability to auto-switch key-material based on
incoming data stream
- Debugging security
- Secure software controlled debug access
- Security aware debugging
High-speed interfaces:
- 1× Integrated Ethernet switch
(CPSW3G) supporting:
- Up to 2 Ethernet ports
- RMII (10/100)
- RGMII (10/100/1000)
- IEEE 1588 (2008 Annex D, Annex E, Annex F) with 802.1AS PTP
- Clause 45 MDIO PHY management
- Energy efficient Ethernet (802.3az)
- Up to 2 Ethernet ports
- 1× PCI-Express Gen2 controller (PCIE)
- Supports Gen2 operation
- Supports Single Lane operation
- 1× USB 3.1 Dual-Role Device (DRD)
Subsystem (USBSS)
- Port configurable as USB host,USB device, orUSB Dual-Role device
- USB device: High-speed (480Mbps), andFull-speed (12Mbps)
- USB host: SuperSpeed Gen 1 (5Gbps),High-speed (480Mbps),Full-speed (12Mbps), andLow-speed (1.5Mbps)
General connectivity:
- 6× Inter-Integrated Circuit (I2C) ports
- 9× configurable Universal Asynchronous Receive/Transmit (UART) modules
- 1× Flash Subsystem (FSS) that can be configured as Octal SPI (OSPI) flash interfaces or one Quad SPI (QSPI)
- 1× 12-Bit Analog-to-Digital
Converters (ADC)
- Up to 4MSPS
- 8× multiplexed analog inputs
- 7× Multichannel Serial Peripheral Interfaces (MCSPI) controllers
- 6× Fast Serial Interface Receiver (FSI_RX) cores
- 2× Fast Serial Interface Transmitter (FSI_TX) cores
- 3× General-Purpose I/O (GPIO) modules
Control interfaces:
- 9× Enhanced Pulse-Width Modulator (EPWM) modules
- 3× Enhanced Capture (ECAP) modules
- 3× Enhanced Quadrature Encoder Pulse (EQEP) modules
- 2× Modular Controller Area Network (MCAN) modules with or without full CAN-FD support
Media and data storage:
- 2× Multi-Media Card/Secure
Digital (MMC/SD/SDIO) interfaces
- One 4-bit for SD/SDIO;
- One 8-bit for eMMC
- Integrated analog switch for voltage switching between 3.3V to 1.8V for high-speed cards
Power management:
- Simplified power sequence
- Integrated SDIO LDO for handling automatic voltage transition for SD interface
- Integrated voltage supervisor for safety monitoring of over-under voltage conditions
- Integrated power supply glitch detector for detecting fast supply transients
Functional Safety:
-
Functional Safety-Compliant
- Developed for functional safety applications
- Documentation available to aid IEC 61508 functional safety system design
- Systematic capability up to SIL 3
- Hardware integrity up to SIL 2
- Safety-related certification
- Functional Safety Features
- ECC or parity on calculation-critical memories
- ECC and parity on select internal bus interconnect
- Built-In Self-Test (BIST) for CPU and on-chip RAM
- Error Signaling Module (ESM) with error pin
- Runtime safety diagnostics, voltage, temperature, and clock monitoring, windowed watchdog timers, CRC engine for memory integrity checks
- Dedicated MCU domain
memory, interfaces, and M4F core capable of being isolated from the
larger SoC with Freedom From Interference (FFI) features
- Separate interconnect
- Firewalls and timeout gaskets
- Dedicated PLL
- Dedicated I/O supply
- Separate reset
SoC architecture:
- Supports primary boot from UART, I2C, OSPI/QSPI Flash, SPI Flash, parallel NOR Flash, parallel NAND Flash, SD, eMMC, USB, PCIe, and Ethernet interfaces
- 16nm FinFET technology
Package options:
- ALV: 17.2mm × 17.2mm, 0.8mm pitch, 441-pin BGA package
- ANI: 17.2mm × 17.2mm, 0.8mm pitch, 441-pin BGA package
AM64x is an extension of the Sitara™ Industrial-grade family of heterogeneous Arm® processors. AM64x is built for industrial applications, such as motor drives and Programmable Logic Controllers (PLCs), which require a unique combination of real-time processing and communications with applications processing. AM64x combines two instances of the Sitara device’s gigabit TSN-enabled PRU-ICSSG with up to two Arm® Cortex®-A53 cores, up to four Cortex-R5F MCUs, and a Cortex-M4F MCU.
AM64x is architected to provide real-time performance through the high-performance R5Fs, Tightly-Coupled Memory banks, configurable SRAM partitioning, and dedicated low-latency paths to and from peripherals for rapid data movement in and out of the SoC. This deterministic architecture allows for AM64x to handle the tight control loops found in servo drives while the peripherals like FSI, GPMC, PWMs, sigma delta decimation filters, and absolute encoder interfaces help enable a number of different architectures found in these systems.
The Cortex-A53s provide the powerful computing elements necessary for Linux applications. Linux, and Real-time (RT) Linux, is provided through TI’s Processor SDK Linux which stays updated to the latest Long Term Support (LTS) Linux kernel, bootloader and Yocto file system on an annual basis. AM64x helps bridge the Linux world with the real-time world by enabling isolation between Linux applications and real-time streams through configurable memory partitioning. The Cortex-A53s can be assigned to work strictly out of DDR for Linux, and the internal SRAM can be broken up into various sizes for the Cortex-R5Fs to use together or independently.
The AM64x provides flexible industrial communications capability including full protocol stacks for EtherCAT SubDevice, PROFINET device, EtherNet/IP adapter, and IO-Link Master. The PRU-ICSSG further provides capability for gigabit and TSN based protocols. In addition, the PRU-ICSSG also enables additional interfaces in the SoC including sigma delta decimation filters and absolute encoder interfaces.
Functional safety features can be enabled through the integrated Cortex-M4F along with dedicated peripherals which can all be isolated from the rest of the SoC. AM64x also supports secure boot.
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