ORCA SOM/ORCA Hardware/General Information/Processor and memory subsystem
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Contents
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 | |
| 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 | |
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]
|
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.
