DADA SOM/DADA Hardware/General Information/Processor and memory subsystem

History
Issue Date	Notes
2025/06/04	First release

Processor and memory subsystem

The heart of DADA module is composed by the following components:

• AM62x SoC application processor
• Power supply unit
• DDR4 memory bank
• eMMC storage device
• Connectors:
  • 1 x 204 pins SO-DIMM edge connector with interfaces signals
    • partially compatible with AXEL Lite SOM

This chapter shortly describes the main DADA components.

Processor Info

Table: AM62x models comparison

Processor	AM62x SingleCore	AM62x DualCore	AM62x Quadcore
# Cores	1x Arm® Cortex®-A53 1x Arm® Cortex®-M4F	2x Arm® Cortex®-A53 1x Arm® Cortex®-M4F	4x Arm® Cortex®-A53 1x Arm® Cortex®-M4F
Clock	Core: 1.4 GHz (Industrial) Cortex-M4F: up to 400 MHz
L2 Cache	512KB MB
DDR4	16 bit (1600MT/s)
GPU	3D: PowerVR AXE-1-16M OpenGL ES 3.1 Vulkan 1.2
PRUSS	Dual core Programmable Real-Time Unit Subystem up to 333 MHz
Display Controller	Dual independent LVDS channel 2x 1920x1080@60 or 1x 2048x1080 + 1x 1280x720
Video Output	Dual LVDS channel 24-bit RGB DPI
Camera Input	1x MIPI CSI (4-lanes)
Ethernet	2x 10/100/1000 Mbit/s controller with TSN and IEEE1588
USB	2x USB 2.0 Host or Device DRD (Dual-Role Device)

RAM memory bank

LPDD4 SDRAM memory bank is composed by 1x16-bit width chip. The following table reports the SDRAM specifications:

CPU connection	DDR subsystem (DDRSS)
Size max	8 GB
Width	16 bit
Speed	1600 MHz

eMMC storage

On board main storage memory eMMC is connected to the MMC0 interface and it can act as boot peripheral. The following table reports the eMMC flash specifications:

CPU connection	MMC0
Size min	8 GB
Size max	64 GB
Bootable	Yes

NOR QSPI flash

Alternative option for main storage memory can be a serial NOR flash connected to the CPU's Quad serial flash controller. It can act as boot peripheral. The following table reports the NOR flash specifications:

CPU connection	SPI Serial flash controller
Size	16GB
Width	1,4 bit mode
Bootable	Yes

Memory map

For detailed information, please refer to chapter 9.1 “Memory Controllers” of the AM62x Processor Technical Reference Manual

Power supply unit

DADA embeds all the elements required for powering the unit, therefore power sequencing is self-contained and simplified. Nevertheless, power must be provided from carrier board, and therefore users should be aware of the ranges power supply can assume as well as all other parameters.