AURA SOM/AURA Hardware/General Information/Processor and memory subsystem
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| Issue Date | Notes | ||
| 2023/05/17 | Preliminary version | ||
Contents
Processor and memory subsystemEdit
The heart of AURA module is composed by the following components:
- i.MX93 SoC application processor
- Power supply unit
- LPDDR4 memory bank
- eMMC or NAND flash banks
- Connectors:
- 1 x 204 pins SO-DIMM edge connector with interfaces signals partially compatible with AXEL Lite SOM
This chapter shortly describes the main AURA components.
Processor InfoEdit
| Processor | i.MX933x | i.MX935x | |
| # Cores | 1x or 2x Arm® Cortex®-A55
1x Arm® Cortex®-M33 |
1x or 2x Arm® Cortex®-A55
1x Arm® Cortex®-M33 1x NPU | |
| Clock | 1.7 GHz (Industrial) | ||
| L3
Cache |
256 KB | ||
| LPDDR4 | 32 bit @ 1600 MHz with inline ECC
(LPDDR4-3200) | ||
| Video | PXP 2D accelerator | ||
| NPU | 0.5 TOPs Neural Processing Unit | ||
| Display
Controller |
LVDS channel
up to 1366x768 or 1280x800 | ||
| Video
Output |
1x 4-lane MIPI-DSI | ||
| Camera
Input |
1x MIPI CSI | ||
| Ethernet | 2x 1Gbit ethernet | ||
| USB | 2x USB 2.0 OTG | ||
RAM memory bankEdit
LPDD4 SDRAM memory bank is composed by 1x 16-bit width chip. The following table reports the SDRAM specifications:
| CPU connection | Multi-mode DDR controller (MMDC) |
| Size max | 2 GB |
| Width | 16 bit |
| Speed | 1400 MHz |
eMMC flash bankEdit
On board main storage memory eMMC is connected to the SDIO1 interface and it can act as boot peripheral. The following table reports the eMMC flash specifications:
| CPU connection | SDIO1 |
| Size min | 4 GB |
| Size max | 64 GB |
| Bootable | Yes |
NAND flash bankEdit
Alternative option for main storage memory can be a serial NAND flash connected to the CPU's Quad serial flash controller. It can act as boot peripheral. The following table reports the NAND flash specifications:
| CPU connection | SPI Serial NAND flash controller |
| Size min | 16GB |
| Size max | 128GB |
| Width | 1,4,8 bit mode |
| Bootable | Yes |
Memory mapEdit
For detailed information, please refer to chapter 2 “Memory Maps” of the i.MX93 Applications Processor Reference Manual
Power supply unitEdit
AURA 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.