EKF - Short Profile
EKF - Short Profile


CompactPCI® PlusIO CPU Card
Intel® Atom™ E6xx Series Processor
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Ordered List

PC2-LIMBO • Low Power Intel® Atom™ E6xx Series CPU
PDF documents available here

Product Information
User Guide
Block Diagram

Application Notes
Power Event (Power Down)
Software Capabilities

General Information
Mezzanine Overview
C4x Series Overview
Mezzanine Concept

Low Profile Mezzanine Modules
C40 | C41 | C42 | C43 | C47

Side Boards +4HP Pitch
C23 | C32 | C44 | C45 | CCI | CCK | CCL | CCO

Rear I/O Transition Module
Download area for drivers
BIOS Update
Intel® BLDK

XP Drivers
Atom™ E6xx Software
EG20T Ethernet Driver

82574 Ethernet Driver

HD Audio Drivers
Subscription of the EKF NewsFlash, an E-Mail Letter with Announcements of Firmware and BIOS Updates
E-Mail on BIOS Update Subscription of the EKF NewsFlash, an E-Mail Letter with Announcements of Firmware and BIOS Updates, English
E-Mail bei BIOS Update Abonnement EKF NewsFlash, ein E-Mail Dienst mit Ankündigungen neuer Firmware/BIOS Updates, Deutsch
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Low Profile Mezzanine Modules
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Side Boards
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Rear I/O Transition Module
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Intel® Atom™ Processor E6xx Series Low Power CPU Card

Suitable for Classic CompactPCI® and PICMG 2.30 CompactPCI® PlusIO Systems

The PC2-LIMBO is a low power 4HP/3U CompactPCI® CPU board, equipped with an Intel® Atom™ E6xx series 1.6GHz processor, available on request for the industrial operating temperature range. The PC2-LIMBO front panel is provided with two Gigabit Ethernet jacks, two USB receptacles, and a DVI connector for attachment of a high resolution digital display.

The PC2-LIMBO is equipped with up to 2GB soldered RAM for rugged applications. An on-board CFast™ host connector is provided for attachment of a 3Gbps SATA SSD module. In addition, a microSD card holder can accommodate a low cost industrial microSDHC Flash card. Further more, several SATA based low mass storage expansion modules are available as an option.

PC2-LIMBO • Atom™ E6xx Series CPU

PC2-LIMBO • Intel® Atom™ E6xx Series CPU

The PC2-LIMBO is equipped wit a set of local expansion interface connectors, which can be optionally used to attach a mezzanine side board. A variety of expansion cards is available, e.g. providing legacy I/O and additional PCI Express based I/O circuitry such as SATA and Gigabit Ethernet, or a secondary video output. Most mezzanine side cards can accommodate in addition a 2.5-inch drive.

Typically, the PC2-LIMBO and the related side card would come as a readily assembled 8HP unit. As an alternate, Flash based mezzanine storage modules are available that fit on the PC2-LIMBO while maintaining the 4HP profile. The C47-MSATA module e.g. accommodates two mSATA SSDs and can be operated in RAID mode. The C42-SATA module is provided with a 1.8-Inch Micro SATA SSD up to 800GB.

Benefits of the PC2-LIMBO
  • CompactPCI® System Slot Controller
  • CompactPCI® PlusIO Rear I/O According to PICMG® 2.30
  • Hybrid Systems Option (Dual Backplane CompactPCI® and CompactPCI® Serial)
  • Based on the Intel® Queens Bay Platform (Tunnel Creek CPU, Topcliff PCH)
  • Intel® Atom™ Series E6xx Mobile Processor, Power Optimized CPU, Integrated Graphics Engine
  • E620(T) Processor 0.6GHz 3.3W TDP (T = -40C to +85C)
  • E640(T) Processor 1.0GHz 3.6W TDP (T = -40C to +85C)
  • E660(T) Processor 1.3GHz 3.6W TDP (T = -40C to +85C)
  • E680(T) Processor 1.6GHz 4.5W TDP (T = -40C to +85C)
  • DDR2 Soldered Memory up to 2GB
  • Integrated Graphics Controller (Front Panel: DVI or VGA Connector Option)
  • Max Resolution 1920x1080
  • Intel® EG20T (Topcliff) Platform Controller Hub (PCH)
  • Dual Gigabit Ethernet Controllers (Individually BIOS Controlled either F/P or J2 RIO)
  • Two Native SATA Channels 3Gbps
  • Four Additional SATA Channels 3Gbps, Mezzanine Usage (Option on Request) and/or Rear I/O (JMicron Controllers, no BIOS Boot Support as of Current)
  • Twelve USB 2.0 Channels
  • CFast™ Card Host Connector on-Board (SATA 3Gbps I/F)
  • microSD Host Connector (up to 32GB Class 6 Speed microSDHC Card Support)
  • SATA 1.8-Inch Solid State Drive (SSD) up to 800GB with C42-SATA Mezzanine Module Option (4HP Assembly Height Maintained)
  • CompactFlash and/or USB SSD with C40-SCFA Mezzanine Module Option (4HP Maintained)
  • Secondary CFast™ Card Host Connector with C41-CFAST Mezzanine Module Option (4HP Maintained)
  • On-Board PCI Express® Packet Switch (4 Lanes available for Rear I/O and CPCI Serial Backplane Respectively, another 1 Lane for Mezzanine Side Card)
  • Legacy I/O Expansion Connectors (CAN2.0B, HD Audio, LPC, PS/2, UART)
  • High Speed I/O Expansion Connectors (LVDS, PCI Express®, SATA, USB)
  • Variety of Mezzanine Expansion Boards (Side Cards) Available with and w/o PCIe
  • Most Mezzanines Optionally Equipped with 2.5-Inch Single- or Dual-Drive
  • Rear I/O Transition Module Option (e.g. PR1-RIO)
  • +5V Only Design, on-Board 3.3V Regulator Can Supply CPCI Peripheral Slot Cards
  • UEFI Phoenix BIOS with ACPI
  • Long Term Availability
  • Coating, Sealing, Underfilling on Request
  • RoHS compliant



CompactPCI® PlusIO (PICMG 2.30) is a new standard for rear I/O across J2, specified by the PICMG®. High speed signal lines (PCI Express®, SATA, Gigabit Ethernet and USB) are passed from the PC2-LIMBO through the special UHM connector to the backplane, for usage either on a PlusIO rear I/O transition module, or CompactPCI® Serial card slots.

CompactPCI® Serial (PICMG CPCIS.0) defines a completely new card slot, based on PCI Express®, SATA, Gigabit Ethernet and USB serial data lines. On a hybrid backplane, both card styles can reside, CompactPCI® and CompactPCI® Serial, with the PC2-LIMBO in the middle as system slot controller for both backplane segments.

PC2-LIMBO • High Speed Rear I/O Backplane Connector J2 UHM

PC2-LIMBO • High Speed Rear I/O Backplane Connector J2 UHM

PC2-LIMBO • Simplified Block Diagram

PC2-LIMBO • Simplified Block Diagram
Ordering Information
Please refer to List 21 for popular PC2-LIMBO SKUs
For popular mezzanine side cards please refer to List 20

SRP-4401 Hybrid Systems CPCI Classic & CPCI Serial

SRP-4401 Rugged Hybrid Systems CPCI Classic & CPCI Serial
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