AM261...ZFG datasheet(186/218 Pages) TI2

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7 Detailed Description

7.1 Overview

The AM261x Sitara Arm® Microcontrollers are built to meet the complex real-time processing and control

needs of next generation industrial and automotive embedded projects. AM261x combines advanced computing

with industry leading real-time control peripherals to meet the growing performance needs of applications

such as HEV/EV (on-board chargers, DC-DC converters, Battery Management Systems), Two axis Servo

drive, Industrial Digital Power control(energy storage, String Inverters), and other general real-time constrained

systems. AM261x combines up to two Cortex-R5F MCUs, a real-time control subsystem (CONTROLSS), a

Hardware Security Module (HSM), and two instances of Sitara’s TSN-enabled PRU-ICSS, making AM261x

designed for advanced motor control and digital power control applications.

The R5F cores are arranged in cluster with 512KB of shared tightly coupled memory (TCM) along with 1.5MB of

shared SRAM. The Arm® cores can be optionally programmed to run in lock-step option for different functional

safety configurations. Extensive ECC is included on on-chip memory, peripherals, and interconnect for enhanced

reliability. Cryptographic acceleration and secure boot are also available on AM261x devices in addition to

granular firewalls managed by the HSM for developers to design the most secure systems.

The Real-Time Control Subsystem (CONTROLSS) is a revolutionary subsystem integrated into the device.

CONTROLSS contains multiple digital and analog control peripherals including: ADC, CMPSS, EPWM, ECAP,

and EQEP, among others to enable efficient execution of critical sense/process/actuate real-time signal chain

control loops. The integrated crossbar (XBAR) infrastructure enables flexible configuration and routing of

external signals to internal ports and internal signals to external pins.

The PRU-ICSS in AM261x provides the flexible industrial communications capability necessary to run TSN,

EtherCAT®, PROFINET®, Ethernet/IP™, or for standard Ethernet connectivity and custom I/O interfacing. The

PRU also enables additional interfaces in the SoC including sigma delta decimation filters and absolute encoder

interfaces. The CPSW interface also provides two standard Ethernet ports.

TI provides a complete set of microcontroller software and development tools for the AM261x family of

microcontrollers in addition to multiple pin-to-pin compatible devices for scalability and ease of use.

AM2612, AM2611, AM2611-Q1, AM2612-Q1

SPRSPA7C – SEPTEMBER 2024 – REVISED JULY 2025

www.ti.com

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AM261...ZFG 数据表(PDF) 186 Page - Texas Instruments