sysmik Scalibur SCA-340, Руководство пользователя, Страница: 7 / 58

Device and System Overview
Manual SCA-340 / SCA-340-L sysmik.de 7
2. Device and System Overview
2.1 Hardware
2.1.1 Functional Overview
Fig. 2.1.1.1: SCA-340-L basic circuit diagram
2.1.2 Processor Core

Processor: ARM
®
Cortex
®
A8 / 1 GHz

DDR3 SDRAM: 1 GB RAM (512 MiB for hardware version < 06 – see serial label)

eMMC Flash: 1,8 GB

NVRAM: 512 KiB / (buffered for a power failure of 5 days)

RTC: buffered for a power failure of 5 days
The internal Flash memory can be extended with a microSD card.
2.1.3 Ethernet
The integrated Ethernet switch has 4 external ports, which can be assigned
independently to one of the two separate IP interfaces. If at least two ports belong to
an IP interface, then redundant communication paths can be established, for
example by connecting several devices in a ring. The Ethernet switch supports the
Rapid Spanning Tree Protocol (RSTP), as well as a ring monitoring function to
automatically switch off redundant paths, and a broadcast storm protection function.
Factory default: eth0 is assigned to LAN3/LAN4, eth1 is assigned to LAN1/LAN2,
and RSTP and ring monitoring are deactivated.