# CM3-BT4 # Extreme Rugged™ PCI-104 Single Board Computer with Intel Atom® Processor SoC # Features ● Quad-core Intel Atom® Processor SoC Up to 4GB DDR3L at 1333MHz ● Supports VGA and LVDS ● 2x GbE 1x SATA 3Gb/s (optional 2x SATA), 3x USB 2.0, 8x GPIO Extreme Rugged™ operating temperature: -40°C to +85°C ● Supports Smart Embedded Management Agent (SEMA) functions ![Close-up of a printed circuit board with integrated circuits and connectors (no visible text or symbols)](.datasheet-pc104-cm3-bt4-20230316/bf776b9431816c5c7be401416cdc7dce5e2782568ef0e8958b64d24a1ed782ec.jpg) ![Close-up of a printed circuit board with visible components and gold contacts (no readable text or symbols)](.datasheet-pc104-cm3-bt4-20230316/1a089d5b4b7aaba00b650cfcc6e03702620b32259b527d4e8a575de6c59c102a.jpg) ![The image displays a simple geometric graphic on a white background. It features an orange ring composed of eight trapezoid-like shapes arranged radially around a central white space, resembling a stylized sun or camera aperture.](.datasheet-pc104-cm3-bt4-20230316/e21ed282c0cea2c1d25398931bf1016b924e13743e71b605220fdaf0baddd6ef.jpg) # PC104 # Specifications # ● Core System # CPU Quad-core Intel Atom® Processor SoC Atom™ E3845 (4C), 1.91 GHz, 542/792 (Turbo), 10W Supports: single, dual or quad 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 4GB DDR3L-1066/1333 MHz DDR3L SO-DIMM # 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 PCI-104 # 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 # Debug Headers 40-pin multipurpose flat cable connector Note: Use in combination with DB-40 debug module providing BIOS POST code LED, BMC acces, SPI BIOS flashing, Power Testpoints, Debug LEDs # ● Audio # Chipset Intel® HD Audio integrated in SoC # Audio Codec ALC888 # Ethernet Intel® MAC/PHY 2x Intel® i210 (MAC/PHY) Ehternet controller # Interface 10/100/1000 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 Yes # Specifications # ● I/O Interfaces USB 3x USB 2.0 (1x on 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 # Operation System # Standard Support Windows® 7/8 32/64-bit, Linux 32/64-bit # Extended Support (BSP) WES7/8, WEC7, Linux, QNX, VxWorks # ● 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: -40°C to 85°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) ![This image features the word 'SEMA' written in bold, white, sans-serif capital letters. The text is centered on a rectangular background that has a gradient effect, transitioning from a darker orange at the top to a lighter orange at the bottom. The entire logo is enclosed within a thin white border and has rounded corners.](.datasheet-pc104-cm3-bt4-20230316/769e66d837caa68ba5af0d3269d1a564d1173765466d732bd215f2a3ddce14b5.jpg) # Functional Diagram CMx-BTx ![The diagram centers on a large gray block labeled **Intel BayTrail-I SoC**, which lists three variants: **E3845 (4C)**, **E3825 (2C)**, and **E3815 (1C)**.\n\n**Left Side Connections (From SoC to peripherals):**\n* **VGA**: Direct connection.\n* **LVDS**: Connected via a block labeled **PTN3460 eDP to LVDS**. The connecting 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 line from the SoC is labeled **PCIe(0) x1**.\n* **Optional: 2nd GbE**: Connected via a block labeled **I210IT Ethernet (option)**. The line from the SoC is labeled **PCIe(3) x1**.\n* **PCI-104**: Connected via a block labeled **XIO2001IZGU PCIe to PCI**. The line from the SoC is labeled **PCIe(2) x1**, and the line from the block to the port is labeled **PCI**.\n* **Optional: PC/104**: Connected via a block labeled **F85226AF LPC to ISA (option)**. The line from the SoC is labeled **LPC**, and the line from the block is labeled **ISA**.\n\n**Right Side Connections (From SoC to peripherals):**\n* **DDR3L-1333 SO-DIMM socket**: Connected via a line labeled **Channel 0**.\n* **mPCIe / mCard slot**: Connected via lines labeled **1x USB 2.0** and **PCIe(3) x1**.\n* **1x SATA 3 GB/s shared with mSATA**: Connected via an oval labeled **1x mSATA**, which is fed by a line labeled **BIOS/Jumper selection**. Text below notes: **Optional: 2x SATA 3 GB/s (1x shared with mSATA)**.\n* **2x COM**: Connected via a block labeled **NCT5104D**. The line from the SoC is labeled **LPC**. Text below notes: **Optional: 4x COM**.\n* **3x USB 2.0**: Direct connection.\n* **8x GPIO**: Connected via a block labeled **PCA9535BS**. The line from the SoC is labeled **I2C**.\n* **System Panel Con.**: Direct connection.\n\n**Bottom Connections:**\n* **SPI(0)**: Connects the SoC to a block labeled **BIOS 1**. Below it is a grayed-out block labeled **BIOS 2**.\n* **BMC / SEMA**: Connected from the SoC. It has arrows pointing to **BIOS 1**, **DIAG**, **LM73**, and **Power Supply**.\n* **DIAG**, **LM73**, and **Power Supply**: These blocks are connected via an **I2C** bus.\n* **ATX 5VDC Stack**: Connected via a buffer symbol near the BMC/SEMA block.\n* **DB40 Service Connector**: A standalone block at the bottom left.](.datasheet-pc104-cm3-bt4-20230316/3eba5660adfb08f997d7a9406b351e05a72f91603ee43181653aaec859b26478.jpg) # Ordering Information # ● CM3-BT4-E3845 PCI-104, Atom® E3845, 1.91 GHz, quad-core, incl. heat spreader, Standard operating temperature: 0°C to +60°C # . CM3-BT4-E3845/ETT PCI-104, Atom® E3845, 1.91 GHz, quad-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 Verified 2GB, 4GB DDR3L SODIMM memory available \*other configurations by request CMx-BTx Standard Variant Comparison
Model NumberCM1-BT1-E3815CM2-BT2-E3825CM3-BT4-E3845CM3-BT1-E3815
Form factorPC/104PC/104-PlusPCI-104PCI-104
PCI Bus (PCI-104)NoYesYesYes
ISA Bus (PC/104)YesYesNoNo
CPUE3815E3825E3845E3815
CPU cores1241
VGA1x1x1x1x
LVDS1x1x1x1x
config 1config 2config 1config 2config 1config 2config 1config 2
SATA21212110
mSATA01010101
mPCIe10101010
MicroSD card slot1x1x1x0x
GbE2x2x2x1x
COM4x4x4x2x
GPIO8x8x8x8x
HD Audio1x1x1x1x
USB 2.03x3x3x3x
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