ZERO SOM/ZERO Hardware/General Information/Processor and memory subsystem
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Contents
Processor and memory subsystem[edit | edit source]
The heart of ZERO module is composed of the following components:
- RZ/T2H SoC application processor
- Power supply unit
- LPDDR4 memory bank
- eMMC flash memory
- OSM L 45x45mm form factor
This chapter briefly describes the main ZERO components.
Processor Info[edit | edit source]
| Processor | RZ/T2H | |
| # Cores | 1x/2x/4x Arm® Cortex®-A55
2x Arm® Cortex®-R52 | |
| Clock | 1.2 GHz (Industrial)
500/1000MHz | |
| OnChip SRAM | 2 MB | |
| L3
Cache |
1024 KB | |
| LPDDR4 | 32 bit @ 1600 MHz
(LPDDR4-3200) | |
| Display Controller | RGB 888
up to 1280x800@60 fps | |
| Ethernet | 1 channel / 3 ports EtherCAT slave Controller
3 port PHY Ethernet switch 10/100/1000 Mbps 1 port / 3 units Ethernet MAC 10/100/1000 Mbps | |
| PCIe | Gen3 2-lanes | |
| USB | 1x USB 2.0 Host/OTG | |
| Multi function Timer Unit | 8x 16 bits channel
1x 23 bits channel | |
| General PWM Timer | 56x 32 bits channels
(45 ch 9 axes motor control) | |
| AD converter | 3x 12 bits | |
| Serial interface | 3x I2C
4x SPI 2x CAN 6x SCI (UART) | |
| Watchdog Timer | 6x 14 bits channels | |
RAM memory bank[edit | edit source]
LPDDR4 SDRAM memory bank is composed of 1x 32-bit width chip. The following table reports the SDRAM specifications:
| CPU connection | SDRAM Subsystem Mermoy Controller (DDRSS) |
| Size max | 4 GB |
| Width | 32 bit |
| Speed | 1600 MHz |
eMMC flash bank[edit | edit source]
The onboard main storage memory eMMC is connected to the SDHI (SD Host Interface) and it can act as boot peripheral. The following table reports the eMMC flash specifications:
| CPU connection | SDI1 |
| Size min | 8 GB |
| Size max | 64 GB |
| Bootable | Yes |
Memory map[edit | edit source]
For detailed information, please refer to the RZ/T2H Hardware User’s Manual.
Power supply unit[edit | edit source]
ZERO embeds all the elements required to power the unit, therefore, power sequencing is self-contained and simplified. Nevertheless, power must be provided from the carrier board, and therefore users should be aware that the power supply range can assumes as well as all other parameters.
