VersaLogic Owl, Справочник по аппаратуре

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Board Features
VL-EPU-4012 Hardware Reference Manual 18
Board Features
CPU
The Intel Atom E39xx SoC6 features integrated 3D graphics, video encode and decode, and
memory and display controllers in one package. The following CPU configurations are available:

VL-EPU-4012-EAP: Intel Atom 3930 – 1.3 GHz, Dual Core

VL-EPU-4012-EDP: Intel Atom 3950 – 1.6 GHz, Quad Core
EPU-4012 Product Page
CPU Die Temperature
The CPU die temperature is affected by numerous conditions, such as CPU utilization, CPU
speed, ambient air temperature, airflow, thermal effects of adjacent circuit boards, external heat
sources, and many others.
The thermal management for the Intel Atom E39xx series of processors consists of a sensor
located in the core processor area. The processor contains multiple techniques to help better
manage thermal attributes of the processor. It implements thermal-based clock throttling and
thermal-based speed step transitions. There is one thermal sensor on the processor that triggers
Intel's thermal monitor (the temperature at which the thermal sensor triggers the thermal monitor
is set during the fabrication of the processor). Triggering of this sensor is visible to software by
means of the thermal interrupt LVT entry in the local APIC
System RAM
The Owl has soldered-on SDRAM with the following characteristics:
Table 2: Owl Memory Characteristics
Board Model Memory Type Capacity Data Rate
VL-EPU-4012-EAP DDR3L ECC 2 GB 1600 MT/s – Single Channel
VL-EPU-4012-EDP DDR3L ECC 8 GB 1600 MT/s – Dual Channel
Flash Storage
The Owl provides on-board eMMC* Flash storage on certain models of the product:

VL-EPU-4012-EAP: 8 GB

VL-EPU-4012-EDP: 32 GB
I/O Interfaces
Later chapters describe the Owl’s I/O interfaces and their associated connectors as follows:

Mass Storage Interfaces (SATA, microSD, and eMMC Flash), beginning on page 28