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

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History
Issue Date Notes
2021/02/24 First release


Processor and memory subsystem[edit | edit source]

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

  • i.MX8M Plus SoC application processor
  • Power supply unit
  • LPDDR4 memory bank
  • eMMC or NAND flash banks
  • Connectors:
    • 1 x 260 pins SO-DIMM edge connector with interfaces signals

This chapter shortly describes the main ORCA components.

Processor Info[edit | edit source]

Processor i.MX8M Plus Dual i.MX8M Plus Quad
# Cores 2x Arm® Cortex®-A53
1x Arm® Cortex®-M7
1x Hi-Fi4 DSP
4x Arm® Cortex®-A53
1x Arm® Cortex®-M7
1x Hi-Fi4 DSP
Clock 1.8 GHz
L2 Cache 512 KB
LPDDR4 32 bit @ 2000 MHz
(LPDDR4-4000)
GPU 3D: Vivante GC 7000UL (2 Shader)
2D: Vivante GC520L

OpenGL ES 3.1
Vulkan
Open VG 1.1
Open CL 1.2

VPU 1080p60 H.265, H.264, VP9, VP8 decoder
1080p60 H.265, H.264 encoder
NPU 2.25 TOP/s Neural Processing Unit
Display Controller Dual Channel LVDS up to 1080p60
Video Output 1x HDMI 2.0a
1x MIPI-DSI (4-lanes)
Camera Input 2x MIPI CSI (4-lanes each)
2x ISP
Ethernet 2x 10/100/1000 Mbit/s controller with AVB and IEEE1588
PCIe 1x PCIe 3 (1-lane)
USB 2x USB 2.0/3.0
Table: i.MX8M Plus models comparison

RAM memory bank[edit | edit source]

LPDD4 SDRAM memory bank is composed by 1x 32-bit width chip. The following table reports the SDRAM specifications:

CPU connection Multi-mode DDR controller (MMDC)
Size max 8 GB
Width 32 bit
Speed 2000 MHz

eMMC flash bank[edit | edit source]

On board main storage memory eMMC is connected to the SDIO3 interface and it can act as boot peripheral. The following table reports the eMMC flash specifications:

CPU connection SDIO3
Size min 4 GB
Size max 64 GB
Bootable Yes

NAND flash bank[edit | edit source]

TBD.png Section not completed yet


Alternative option for main storage memory can be a 8-bit wide NAND flash connected to the CPU's Raw NAND flash controller. It can act as boot peripheral. The following table reports the NAND flash specifications:

CPU connection Raw NAND flash controller
Page size TBD
Size min TBD
Size max TBD
Width 8 bit
Chip select TBD
Bootable Yes

Memory map[edit | edit source]

For detailed information, please refer to chapter 2 “Memory Maps” of the i.MX8M Plus Applications Processor Reference Manual

Power supply unit[edit | edit source]

ORCA 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.