AM275x Signal Processing Microcontrollers

1 Features

Processor Cores:

Dual or Quad-core Arm®Cortex® R5F CPU with each core running up to 1 GHz
- 32KB I-Cache with 64-bit ECC per CPU core
  - 4x8KB association
  - Single Error Correction, Double Error Detection ECC protected per 64 bits
- 32KB D-cache with 64-bit ECC per CPU core
  - 4x8KB association
  - Single Error Correction, Double Error Detection ECC protected per 64 bits
- 64KB Tightly Coupled Memory (TCM) per core, with 32-bit ECC
  - Single Error Correction, Double Error Detection ECC protected per 64 bits
  - Two Banks, A and B, 32KB each
    - Bank B split into B0 and B1, 16KB each
  - 128KB TCM for CPU0 in lockstep mode
- Up to 128KB Remote L2 Cache
  - 32B cache line
  - Up to 128KB L2 cache covering up to 16MB cacheable space
  - Read only, 8-way cache
  - Fast Local Copy (FLC) support
- For each cluster, lockstep or independent dual core operation supported
Single or Dual C7x DSP core with each core running up to 1GHz
- L1 memory architecture
  - 32KB I-Cache per core
  - 64KB D-Cache per core
- L2 memory architecture
  - 2.25MB with ECC protection on L2 SRAM
    - 2MB "Main" segment
    - 256KB "Auxiliary" segment
- Matrix Multiply Accelerator Version 3f (MMA3F) on DSP0
2x Asynchronous Audio Sample Rate Converter (ASRC)
- 140dB Signal-to-Noise ratio (SNR)
- Up to 8 pairs of input and output streams (up to 16 channels total) per ASRC
- Input and output sample rates from 8KHz to 216KHz
- 16-, 18-, 20-, 24-bit data input/output

Memory Subsystem:

Up to 6MB of On-Chip Shared SRAM
Remote Low latency L2 cache (RL2), software programmable, allocated from SRAM
432KB of On-Chip SRAM in SMS Subsystem
- 256KB of On-Chip RAM with SECDED ECC in SMS Subsystem
- 176KB of On-Chip RAM with SECDED ECC in SMS Subsystem for TI security firmware

Flash and Memory Interfaces:

2 × Flash Sub Systems (FSS) that support Octal Serial Peripheral Interface (OSPI) at up to 166MHz SDR and 166MHz DDR at 1.8V and 3.3V with full XIP (eXecute In Place) which can be used for
- 1x FSS supporting OSPI OptiFlash memory technology, Firmware Over-The-Air upgrades (FOTA), and On The Fly Advanced Encryption Standard (OTFA)
- 1x FSS supporting OSPI or HyperRAM
- RAM expansion
1 × 8-bit Multi-Media Card/Secure Digital (eMMC/SD) interface

General Connectivity:

High Speed Interfaces

Integrated Ethernet Switch supporting (total 2 external ports)
- RMII (10/100) or RGMII (10/100/1000)
- IEEE 1588 (Annex D, Annex E, Annex F with 802.1AS PTP)
- Supports 802.1Qav (eAVB)
- Clause 45 MDIO PHY management
- Packet Classifier based on ALE engine with 512 classifiers
- Priority flow control
- Four CPU hardware interrupt pacing
- IP/ UDP/ TCP checksum offload in hardware
USB 2.0
- Port configurable as USB host, USB device, or USB Dual-Role device
- Integrated USB VBUS detection

Security:

Hardware Security Module (HSM)
- Dedicated dual-core ARM Cortex-M4F Security co-processor with dedicated interconnect for security
- Dedicated security DMA and IPC subsystem for isolated processing
Secure boot support
- Hardware-enforced Root-of-Trust (RoT)
- Support to switch RoT via backup key
- Support for takeover protection, IP protection, and anti-roll back protection
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 support
  - DRBG with true random number generator
  - PKA (Public Key Accelerator) to Assist in RSA/ECC processing: RSA-4096 bits, ECDSA, SM2DSA, Curve25519/448
  - Supports Chinese crypto algorithms: SM3 and SM4
- DMA support
Debugging security
- Secure software controlled debug access
- Security aware debugging
Trusted Execution Environment (TEE) supported
- Arm TrustZone® based TEE
- Extensive firewall support for isolation
- Secure watchdog/timer/IPC
Secure storage support
On-the-Fly encryption and support for OSPI interface in XIP mode

Functional Safety:

Power Management:

Boot Options:

Technology / Package: