# CM2-BT2

# Extreme Rugged™ PC/104-Plus Single Board Computer with Intel Atom® Processor System-on-Chip

# Features

● Dual-core Intel Atom® Processor System-on-Chip
1x SODIMM slot; up to 8GB DDR3L at 1333MHz
● Supports VGA and LVDS
● 2x GbE
1x SATA 3Gb/s (optional 2nd SATA), 3x USB 2.0, 8x GPIO
Extreme Rugged™ operating temperature: -40°C to +85°C
● Supports Smart Embedded Management Agent (SEMA) functions

![The image displays a graphic on a white background consisting of several orange, trapezoidal shapes arranged in a circular ring. The shapes are spaced evenly apart and radiate outward from a central empty space, resembling a stylized sun or a loading spinner icon.](.datasheet-pc104-cm2-bt2-20230316/24d9a582c1acb23790d5eb37561bf74602409b71c8c4efab4c0a16b66da2396d.jpg)

PC104

SEMA

![Close-up of a printed circuit board with integrated circuits and gold connectors (no visible text or symbols)](.datasheet-pc104-cm2-bt2-20230316/8c3c0ce1c059138b8fa8925572acda89d5906d9500cae196448b8cb1b1f4fa07.jpg)

![Close-up of a printed circuit board with visible components and gold contacts (no readable text or symbols)](.datasheet-pc104-cm2-bt2-20230316/49328a17d7d562d6a2f9ed3f8de40f633a5cb00c4e037dea2ee5911c8544b33b.jpg)

# Specifications

# ● Core System

# CPU

Dual-core Intel Atom® Processor SoC Atom® E3825 (2C), 1.33 GHz, 533/- (No Turbo), 6W

Supports: single, dual Out-of-Order Execution (OOE) processor cores, Intel® VT-x, Intel® SSE4.1 and SSE4.2, Intel® 64 architecture, IA 32-bit, PCLMULQDQ Instruction DRNG, Intel Thermal Monitor (TM1 & TM2)

Note: Availability of features may vary between processor SKUs

# Memory

Up to 8GB DDR3L-1066/1333 MHz SODIMM

# Embedded BIOS

AMI EFI with CMOS backup in 8MB SPI BIOS

# Cache

Primary 32 KiB, 8-way L1 instruction cache and 24 KiB, 6-way L1 write-back data cache

# Expansion Busses

PC/104-Plus (PCI & ISA connectors)

# SEMA Board Controller

Supports: Voltage/Current monitoring, Power Sequencing, Logistics and Forensic

Information, Flat Panel Control, I²C Bus Control, GPIO Control, User Flash, Failsafe

BIOS (dual BIOS), Watchdog Timer and Fan Control

# ● Audio

# Chipset

Intel® HD Audio integrated in SoC

# Audio Codec

ALC888

# Ethernet

Intel® MAC/PHY

2x Intel® i210 (MAC/PHY) Ehternet controller

# Interface

2x RJ-45 GbE connection

# ● LPC

# LPC

LPC UART NCT5104D (Nuvoton)

# . ● Video

# GPU Feature Support

7th generation Intel® graphics core architecture with four execution units Supports two independent displays 3D graphics hardware acceleration Supports for DirectX 11, OCL 1.1, OGL ES Halt/2.0/1.1, OGL 3.2

Video decode hardware acceleration including support for H.264, MPEG2, MVC, VC-1, WMV9 and VP8 formats Video encode hardware acceleration including support for H.264, MPEG2 and MVC formats

# LVDS

Single/dual channel 18/24-bit LVDS from eDP

# VGA

# Specifications

# ● I/O Interfaces

USB

3x USB 2.0 (1x shared with mSATA)

# SATA

1x SATA 3Gb/s shared with mSATA (optional 2nd SATA 3GB/s port w/o mSATA support)

# GPIO

8x

# Serial

2x RS-232/422 (with full handshake) + 2x RS-232/422 (TX,RX,CTS,RTS only)

# ● Power

# Standard Input

ATX = 5V±5% / 5Vsb ±5% or AT = 5V±5%

# Management

ACPI 5.0 compliant

# Power States

C1-C6, S0, S3, S4, S5 (Wake on USB S3/S4, Wake on LAN S3/S4/S5)

# ECO mode

supports deep S5 for power saving

# Supported Operating System

# WEC 7

WES 7/8, Win 7 Pro, Win 10 Pro (32/64-bit)

Ubuntu 15.10[Kernel 4.2] (32/64-bit)

QNX 6.5/6.6, VxWorks 6.9

# ● Mechanical and Environmental

# Form Factor

PC/104 Version 2.6

# Dimension

90 mm x 96 mm

# Operating Temperature

Standard: 0°C to +60°C

Extended Temperature: -20°C to 70°C (SKU dependent, by screening)

# Humidity

5-90% RH operating, non-condensing

5-95% RH storage (and operating with conformal coating)

# Shock and Vibration

IEC 60068-2-64 and IEC-60068-2-27

MIL-STD-202F, Method 213B, Table 213-I, Condition A and Method 214A, Table 214-I, Condition D

# HALT

Thermal Stress, Vibration Stress, Thermal Shock and Combined Test

# ● Intelligent Middleware

# SEMA®

Local management, control of embedded computer systems

Extended EAPI for monitoring, controlling and analytics applications

Multiple OS support and across platforms (x86, ARM)

# Functional Diagram

CMx-BTx
![**Central Component**\n*   **Intel BayTrail-I SoC** (containing variants: E3845 (4C), E3825 (2C), E3815 (1C))\n\n**Left-Side Connections & Blocks**\n*   **VGA**: Connected directly.\n*   **LVDS single/dual channel 18/24 bit**: Connected via a block labeled **PTN3460 eDP to LVDS**. The connection line is labeled 'DDI 0 (eDP 1.3 / 2 lanes)'.\n*   **Inverter (Backlight)**: Connected via a line labeled 'LVDS Inverter CTRL'.\n*   **Micro SD socket**: Connected via a line labeled 'SDIO'.\n*   **HD Audio**: Connected via a block labeled **ALC888 Audio Codec**.\n*   **1st GbE**: Connected via a block labeled **I210IT Ethernet**. The connection line is labeled 'PCIe(0) x1'.\n*   **Optional: 2nd GbE**: Connected via a block labeled **I210IT Ethernet (option)**. The connection line is labeled 'PCIe(1) x1'.\n*   **PCI-104**: Connected via a block labeled **XIO2001IZAJ PCIe to PCI**. The connection line is labeled 'PCIe(2) x1'.\n*   **Optional: PC/104**: Connected via a block labeled **F85226AD-I LPC to ISA (option)**. The connection line is labeled 'LPC'.\n\n**Right-Side Connections & Blocks**\n*   **DDR3L-1333 50-DIMM socket**: Connected via a line labeled 'Channel 0'.\n*   **mPCle / mCard slot**: Connected via lines labeled '1x USB 2.0' and 'PCIe(3) x1'.\n*   **1x mSATA**: Represented by an oval connected via a line labeled 'BIOS/Jumper selection'.\n*   **1x SATA 3 GB/s shared with mSATA**: Connected with text below it reading 'Optional: 2x SATA 3 GB/s (1x shared with mSATA)'.\n*   **NCT5104D**: Connected via a line labeled 'LPC'. This block connects to:\n    *   **2x COM Optional: 4x COM**\n*   **3x USB 2.0**: Connected via a line labeled '3x USB 2.0'.\n*   **System Panel Con.**: Connected directly.\n*   **8x GPIO**: Connected directly.\n\n**Bottom Section & Power**\n*   **BIOS 1**: Connected via a line labeled 'SPI(0)'. Below this block is text 'BIOS 2'.\n*   **BMC / SEMA**: Connected directly. This block connects to:\n    *   **BIOS 1**\n    *   **DIAG**\n    *   **LM73** (connected via a line labeled 'I2C')\n    *   **Power Supply**\n*   **ATX 5VDC Stack**: Connected to the Power Supply section.\n*   **DB40 Service Connector**: Isolated block at the bottom left.](.datasheet-pc104-cm2-bt2-20230316/0036b4730f4bbedbe3d55b5269d2d3fe64dbdae8e86383059de2762f2aba2e23.jpg)

# Ordering Information

# ● CM2-BT2-E3825

PC/104-Plus, Atom E3825, 1.33 GHz, Dual-core, incl. heat spreader, standard operating temperature: 0°C to +60°C

# . CM2-BT2-E3825/ETT

PC/104-Plus, Atom E3825, 1.33 GHz, dual-core, incl. heat spreader, extended temperature range: -40°C to +85°C (screening)

# ● CMx-BTx-X-10

CMx-BTx cable kit

# ● CMx-BTx-TM-10

Passive low profile heatsink for CMx-BTx

# ● CMx-BTx-TM-20

Active low profile heatsink for CMx-BTx (with fan)

# . DDR3L memory

Validated 2GB, 4GB, 8GB DDR3L SODIMM available

\*other configurations by request

CMx-BTx Standard Variant Comparison

<table><tr><td>Model Number</td><td colspan="2">CM1-BT1-E3815</td><td colspan="2">CM2-BT2-E3825</td><td colspan="2">CM3-BT4-E3845</td><td colspan="2">CM3-BT1-E3815</td></tr><tr><td>Form factor</td><td colspan="2">PC/104</td><td colspan="2">PC/104-Plus</td><td colspan="2">PCI-104</td><td colspan="2">PCI-104</td></tr><tr><td>PCI Bus (PCI-104)</td><td colspan="2">No</td><td colspan="2">Yes</td><td colspan="2">Yes</td><td colspan="2">Yes</td></tr><tr><td>ISA Bus (PC/104)</td><td colspan="2">Yes</td><td colspan="2">Yes</td><td colspan="2">No</td><td colspan="2">No</td></tr><tr><td>CPU</td><td colspan="2">E3815</td><td colspan="2">E3825</td><td colspan="2">E3845</td><td colspan="2">E3815</td></tr><tr><td>CPU cores</td><td colspan="2">1</td><td colspan="2">2</td><td colspan="2">4</td><td colspan="2">1</td></tr><tr><td>VGA</td><td colspan="2">1x</td><td colspan="2">1x</td><td colspan="2">1x</td><td colspan="2">1x</td></tr><tr><td>LVDS</td><td colspan="2">1x</td><td colspan="2">1x</td><td colspan="2">1x</td><td colspan="2">1x</td></tr><tr><td></td><td>config 1</td><td>config 2</td><td>config 1</td><td>config 2</td><td>config 1</td><td>config 2</td><td>config 1</td><td>config 2</td></tr><tr><td>SATA</td><td>2</td><td>1</td><td>2</td><td>1</td><td>2</td><td>1</td><td>1</td><td>0</td></tr><tr><td>mSATA</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td></tr><tr><td>mPCIe</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td></tr><tr><td>MicroSD card slot</td><td colspan="2">1x</td><td colspan="2">1x</td><td colspan="2">1x</td><td colspan="2">0x</td></tr><tr><td>GbE</td><td colspan="2">2x</td><td colspan="2">2x</td><td colspan="2">2x</td><td colspan="2">1x</td></tr><tr><td>COM</td><td colspan="2">4x</td><td colspan="2">4x</td><td colspan="2">4x</td><td colspan="2">2x</td></tr><tr><td>GPIO</td><td colspan="2">8x</td><td colspan="2">8x</td><td colspan="2">8x</td><td colspan="2">8x</td></tr><tr><td>HD Audio</td><td colspan="2">1x</td><td colspan="2">1x</td><td colspan="2">1x</td><td colspan="2">1x</td></tr><tr><td>USB 2.0</td><td colspan="2">3x</td><td colspan="2">3x</td><td colspan="2">3x</td><td colspan="2">3x</td></tr></table>
[🔗 Link to the original document](.datasheet-pc104-cm2-bt2-20230316/datasheet-pc104-cm2-bt2-20230316.pdf)
