AM2732_V02 datasheet(85/114 Pages) TI1

85 / 114 page

7 Detailed Description

7.1 Overview

The AM273x is a high performance microcontroller with an integrated C66x DSP and is ideally suited for

applications needing requiring conditioning and processing functions. Two R5F cores (with optional lockstep

capability) running at 400 MHz with 5MB of internal memory coupled along with a broad range of automotive and

industrial connectivity peripherals and an easy to use SDK enables our customers to address a wide range of

use cases in automotive and industrial markets. Functional safety and security (HSM) features are integrated to

address emerging market trends.

One representative use case is for the AM273x to operate as the MCU host in an automotive radar system.

In this role AM273x provides data aggregation, FFT, CFAR, range, velocity and angle estimation and tracking

processing. The AM273x can operate as a host in single or dual (cascaded) front-end radar application.

As seen in Figure 3-1 the AM273x is divided into a few high level functional subsystems. Each subsystem

contains specific control, signal processing, and digital communication peripherals.

• Main Subsystem (MSS): MCU Core, Cryptographic Core, Mailbox, EDMA, RTI, QSPI, SPI, CAN-FD, I2C,

UART, Ethernet and GPIO

• DSP Subsystem (DSS): C66x Core, HWA2.0 Accelerator, Mailbox, EDMA, RTI

• Radar Controller Subsystem (RCSS): EDMA, CSI2A/B, SPIA/B, I2C and GPIO

Each primary subsystem is then interconnected through an ECC enabled, switch interconnect bus, allowing for

EDMA transfer of data between peripherals and processing cores.

7.2 Main Subsystem

The main subsystem (MSS) is the primary controller of the device and controls all the other device subsystem

cores and peripherals. The MSS contains the Cortex-R5F (MSS R5F) processor and associated peripherals and

associated EDMA and Mailbox IPC functions. The MSS also controls wider system connectivity and network

peripherals such as the I2C, UART, SPI, CAN-FD, EPWM, and Ethernet. The MSS is connected to the primary

interconnect through the Main Subsystem (MSS) Interconnect which is ECC enabled.

The MSS contrains its own dedicated functional safety block consisting of DCC, ESM, LBIST/PBIST, CRC

Watchdog Timer and GPADC for safety monitoring of critical system signals such as power supply and

temperature monitors.

7.3 DSP Subsystem

The DSP subsystem (DSS) contains the TI high performance C66x DSP, HWA 2.0, and a high-bandwidth

interconnect for high performance (128-bit, 150MHz), and associated data transfer peripherals: 6x EDMA for

data transfer, 2x RTI and Mailbox IPC. The Aurora/LVDS measurement data output interface is also mastered by

the C66x DSP. L3 shared memory is available on the DSS interconnect which is also ECC enabled.

For more information on DSP functionality, see the

7.4 Radar Control Subsystem

The radar control subsystem (RCSS) integrates a high-bandwidth interconnect with a pair of 4-lane, CSI 2.0

receivers (CSI2_RX0 and CSI2_RX1), two SPI controllers (RCSS_SPIA and RCSS_SPIB), I2C controllers and

a set of GPIO. The SPI, I2C and GPIO peripherals can be utilized for controlling and configuring the attached

sensor devices. The CSI 2.0 receivers allow for receiveing high-speed sensor data samples such as samples.

Within the device pinlist there are also a number of pins which have been named in support of a radar front-end

connection use-case. All of these signals resolve to various MSS/RCSS GPIO functionality in the device pinmux

and therefore do not exist in the list of pinmux signal. See the below description of these signals.

www.ti.com

AM2732, AM2732-Q1

SWRS245B – DECEMBER 2021 – REVISED DECEMBER 2023

Submit Document Feedback

Product Folder Links: AM2732 AM2732-Q1

AM2732 Datasheet(PDF) 85 Page - Texas Instruments

AM2732 Datasheet(HTML) 85 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL