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rtd CML24BT cpuModules User Manual

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CML24BT cpuModules™
User's Manual
BDM-610000084 Revision B
www.rtd.com
ISO9001 and AS9100 Certified

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  • Page 1 CML24BT cpuModules™ User’s Manual BDM-610000084 Revision B www.rtd.com ISO9001 and AS9100 Certified...
  • Page 2 Contents and specifications within this manual are given without warranty, and are subject to change without notice. RTD Embedded Technologies, Inc. shall not be liable for errors or omissions in this manual, or for any loss, damage, or injury in connection with the use of this manual.
  • Page 3 CML24BT cpuModules™ www.rtd.com ISO9001 and AS9100 Certified...

  • Page 4: Revision History

    Revision History Revision Date Reason for Change 05/27/2016 Initial release 01/03/2018 Throughout: Add missing PCI bus documentation Throughout: Correct designator shown in labels for COM2&4 Throughout: Update trademark for “Intel Atom®” Intro: Add weights for IDAN-CML24BT Intro: Add ordering part numbers for boards which include flat-heatspreaders Connecting: Add warning to indicate that CN3 is not intended to power the CPU while any peripheral cards are connected Connecting: Corrrect number of PCIe links shown in “PCIe Link Configuration”...
  • Page 5 BDM-610000084 Rev B...
  • Page 6 vi CML24BT cpuModule BDM-610000084 Rev B...

  • Page 7: Table Of Contents

    Migrating to RTD’s Intel E3800 Series cpuModules ........
  • Page 8 Configuring the RTD Enhanced BIOS ........
  • Page 9 Watchdog Timer Control ................Thermal Management .
  • Page 10 Appendix D Additional Information Application Notes ..................Drivers and Example Programs .

  • Page 11: Chapter 1 Introduction

    Troubleshooting offers advice on debugging problems with your system Appendix C IDAN™ Dimensions and Pinout provides connector pinouts for the cpuModule installed in an RTD Intelligent Data Acquisition Node (IDAN) frame Appendix D Additional Information lists sources and websites to support the cpuModule installation and configuration...
  • Page 12 PCI Express Gen 2.0 links. Other features include RS-232/422/485 COM ports and Advanced Digital I/O (aDIO). RTD has gone the extra mile to include additional advanced features for maximum flexibility. These include an onboard surface-mount flash drive with a standard SATA interface. An Advanced Watchdog Timer is provided that can generate an interrupt or reset when the timer expires.

  • Page 13: Adio

    The cpuModule uses the RTD Enhanced BIOS. Drivers in the BIOS allow booting from hard disk, or UEFI shell, thus enabling the system to be used with traditional disk drives or nonmechanical drives. Booting to USB devices is also supported.

  • Page 14: Ordering Information

    CMX34BTQ1910HR-4096/S32GX with Flat Heatspreader 22mm Cable Kits and Accessories For maximum flexibility, RTD does not provide cables with the cpuModule. You may wish to purchase the CML24BT cpuModule cable kit (P/N XK-CM108), which contains: • Utility Port 2.0 multi-function cable (2x USB 2.0 ports, battery, reset button, power button, speaker) •...

  • Page 15: Board Features

    Board Features • Intel Atom® E3800 Series Processor: Part Number Cores Core L1 Cache L1 Cache L2 Cache Stack Height Frequency (data) (instruction) CML24BTS1460 1.46 GHz 32 KByte 32 KByte 512 KByte 0.600” (15.24mm) CML24BTD1330 1.33 GHz 32 KByte 32 KByte 512 KByte 0.600”...
  • Page 16 • Advanced Configuration and Power Interface (ACPI) – ACPI 5.0 Compliant – Wake events include: • USB event (device insertion, keyboard keystroke, etc.) • Power Switch • etc. • Real-Time Clock (external battery required to maintain time only) • Nonvolatile storage of CMOS settings without battery •...

  • Page 17: I/O

    • Analog VGA Interface – RGB CRT output – Maximum Resolution 1920 x 1200 • DisplayPort Interface – Embedded DisplaypPort (eDP) 1.3 – DisplayPort, DVI, and HDMI – Audio over DisplayPort • Gigabit Ethernet – Intel 82574IT Controller (PRO1000 Series) –...
  • Page 18 – 1x USB 2.0 (Universal Serial Bus) Port with over-current protection – Speaker port (0.1 W output) – Hardware Reset input – Soft Power Button input • Battery input for Real Time Clock • Power Management – ACPI 5.0 Support - Advanced Configuration and Power interface –...

  • Page 19: Rtd Enhanced Bios

    User-configurable using built-in Setup program • Flash-based CMOS Setup; no battery required to store CMOS settings • Supports boot from SATA or USB • UEFI (Unified Extensible Firmware Interface) Shell • Special RTD Reliability Enhancements BDM-610000084 Rev B Chapter 1: Introduction 9...

  • Page 20: Block Diagram

    Block Diagram The next figure shows a simplified block diagram of the CML24BT cpuModule. Figure 2 CML24BT cpuModule Simplified Block Diagram 10 CML24BT cpuModule BDM-610000084 Rev B...

  • Page 21: Specifications

    Specifications Physical Characteristics Basic dimensions and the weight of the CML24BT are listed below. For a more detailed dimensional drawing, refer to the Physical Dimensions section on page 76. • Dimensions – Board Size • Length (L): 95.885 mm L (3.775") •...

  • Page 22: Operating Conditions

    2. 5V Standby is used to power the board when the main supply is turned off (power down modes S3-S5). It is not required for board operation. 3. With supplied heat sink solution. Depending on the CPU usage, performance may degrade as the ambient temperature approaches the maximum. Contact RTD Tech Support for more information. 12 CML24BT cpuModule...

  • Page 23: Electrical Characteristics

    Electrical Characteristics The table below lists the Electrical Characteristics of the CML24BT. Operating outside of these parameters may cause permanent damage to the cpuModule. Table 4 Electrical Characteristics Symbol Parameter Test Condition Min. Max. Output Voltage High = –0.5 mA 2.9 V 3.3 V Output Voltage Low...
  • Page 24 Table 4 Electrical Characteristics Symbol Parameter Test Condition Min. Max. aDIO Output Voltage High = –29 mA 2.4 V 3.3 V Output Voltage Low = 17 mA 0.0 V 0.5 V Input Voltage High — 1.8 V 5.5 V Input Voltage Low —...

  • Page 25: Migrating To Rtd's Intel E3800 Series Cpumodules

    Migrating to RTD’s Intel E3800 Series cpuModules When migrating to RTD’s Intel E3800 Series cpuModules, there are several differences from some preceding RTD cpuModule product families of which the customer should be aware. Connector Pinout & Function Differences The Intel E3800 Series cpuModules have several connector-related differences, which are summarized below.
  • Page 26 – Unlike some previous cpuModule generations, the single-mode RS-422/485 pinouts of the CML24BT do not include the DCD, DSR, DTR, and RI signals. – When a COM port connector is configured for dual-port mode, enabling/disabling COM port termination enables/disables the termination for both ports on that connector. (Some previous generations of cpuModules have the ability to independently enable/disable termination on both ports when configured for dual-mode.) 16 CML24BT cpuModule...

  • Page 27: Software Differences

    Previous generations of RTD cpuModules contained a Failsafe Boot ROM image, which permitted the cpuModule to boot to a DOS prompt even when no disk drives were connected to the system. The RTD E3800 Series cpuModules provide a similar prompt, called the Unified Extensible Firmware Interface (UEFI) Shell, which provides an enviroment to execute simple commands when no bootable devices are connected to the system.

  • Page 28: Contact Information

    Contact Information RTD Embedded Technologies, Inc. 103 Innovation Blvd. State College, PA 16803-0906 Phone: +1-814-234-8087 Fax: +1-814-234-5218 E-mail: sales@rtd.com techsupport@rtd.com Internet: http://www.rtd.com 18 CML24BT cpuModule BDM-610000084 Rev B...

  • Page 29: Chapter 2 Getting Started

    Chapter 2 Getting Started For many users, the factory configuration of the CML24BT cpuModule can be used to get a PC/104 system operational. You can get your system up and running quickly by following the simple steps described in this chapter, which are: Before connecting the cpuModule, the user must be properly grounded to prevent electrostatic discharge (ESD).

  • Page 30: Connector Locations

    Connector Locations Figure 3 shows the connectors of the CML24BT cpuModule. SATA Disk Chip (U16) PCI Bus (CN16) Factory Factory (CN4) (CN9) COM2&4 (CN8) DisplayPort (CN19) COM1&3 (CN7) SVGA Video (CN18) aDIO USB 2.0 (CN6) (CN17) Battery (CN13) Ethernet Utility (CN20) Port 2.0 (CN5)
  • Page 31 3M 89110-0001 WARNING If you connect power incorrectly, the module will almost certainly be damaged or destroyed. Such damage is not covered by the RTD warranty! Please verify connections to the module before applying power. Power is normally supplied to the cpuModule through the top or bottom PCIe connectors (CN1 or CN2). If you are placing the cpuModule onto a stack that has a PCIe/104 power supply, you do not need to make additional connections to supply power.

  • Page 32: Selecting The Stack Order For The Cmx34Bt

    The standard CPU has the PCI connection below the board only. This means that all boards with an active PCI bus interface must be below the CPU. Contact RTD sales if it is required to have a PCI board above the CPU.

  • Page 33: Stack Example

    Stack Example The figure below shows an example of a complete system stack. Most systems will be a subset of this example. This example stack may be further expanded with a PCI to ISA bridge, PCIe to PCIe bridges, or a PCIe to PCI bridge.

  • Page 34: Connecting To The Stack

    (CN3). These connectors provide the required +5V DC voltage rail input to the cpuModule. While the RTD Intel E3800 Series CPU only requires +5 volts, +12V may optionallly be connected to CN3 if it is required by any other device in the system.
  • Page 35 The PCI bus can operate at +3.3 V or +5 V signaling levels. The default PCI bus signaling level is +3.3 V. For more information, contact RTD Technical Support. WARNING You will have to ensure that all your expansion cards can operate together at a single signaling level.

  • Page 36: Connecting To The Utility Port 2.0 Connector

    To use these interfaces, you must connect to the Utility Port 2.0 connector (CN5). The Utility Port 2.0 cable from the RTD cable kit provides a small speaker, two USB 2.0 ports for a keyboard and mouse, a push-button for resetting the system, a soft-power button, and a lithium battery to provide backup power for the real time clock.

  • Page 37: Chapter 3 Connecting The Cpumodule

    Chapter 3 Connecting the cpuModule This chapter provides information on all CML24BT cpuModule connectors. Proper Grounding Techniques —page 28 Connector Locations—page 28 Auxiliary Power (CN3)—page 30 Utility Port 2.0 Connector (CN5) — page 31 SVGA Video Connector (CN18)— page 34 DisplayPort Connector (CN19)—page 35 Serial Port 1 (CN7) and Serial Port 2 (CN8) —page 37 Advanced Digital I/O (aDIO™) Port (CN6)—page 43...

  • Page 38: Proper Grounding Techniques

    Proper Grounding Techniques Before removing the CML24BT from its static bag, proper grounding techniques must be used to prevent electrostatic discharge (ESD) damage to the cpuModule. Common grounding procedures include an anti-static mat on a workbench, which may connect to an anti-static wrist strap (also known as an ESD wrist strap) on the wrist of the technician or engineer.
  • Page 39 Table 7 CML24BT Basic Connectors Connector Function Size and Pitch Mating Connector PCIe/104 Type 2 Bus (Top) 156-pin, 0.635mm Samtec ASP-129646-03 PCIe/104 Type 2 Bus (Bottom) 156-pin, 0.635mm Samtec ASP-129637-03 Auxiliary Power 1x12, 0.1” FCI 65039-025LF Utility Port 2.0 2x5, 0.1” 3M 89110-0001 aDIO 2x8, 0.1”...

  • Page 40: Auxiliary Power (Cn3)

    The voltage at the connector should be checked with an oscilloscope while the system is operational. WARNING This 12-pin power connector is not compatible with previous generations of RTD cpuModules. WARNING If you connect power incorrectly, the module will almost certainly be destroyed. Please verify power connections to the module before applying power.
  • Page 41 BDM-610000084 Rev B Chapter 3: Connecting the cpuModule 31...

  • Page 42: Utility Port 2.0 Connector (Cn5)

    Shield Ground WARNING The pinout of the Utility Port 2.0 connector is not compatible with previous generations of RTD cpuModules. Attaching a legacy Utility Port harness to the Utility Port 2.0 connector may damage or destroy the cpuModule. Facing the connector pins, the pinout is:...

  • Page 43: Usb 2.0 Connector

    Note For proper operation at USB 2.0 speeds, be sure to use a cable that is rated for USB 2.0, such as the cable kit supplied by RTD. Speaker A speaker output is available on pins 1 and 2 of the Utility Port 2.0 connector. These outputs are controlled by a transistor to supply 0.1 W of power to an external speaker.

  • Page 44: Battery

    Battery Pin 9 of the Utility Port 2.0 connector is the connection for an external backup battery. This battery is used by the cpuModule when system power is removed in order to preserve the date and time of the real time clock. Connecting a battery is only required to maintain time when power is completely removed from the cpuModule.

  • Page 45: Svga Video Connector (Cn18)

    SVGA Video Connector (CN18) Table 10 provides the pinout of the video connector. Table 10 SVGA Video Connector (CN18) Signal Function In/Out VSYNC Vertical Sync HSYNC Horizontal Sync DDCSCL Monitor Communications Clock Red Analog Output DDCSDA Monitor Communications Data bidirectional GREEN Green Analog Output +5 V...

  • Page 46: Displayport Connector (Cn19)

    DisplayPort Connector (CN19) The DisplayPort connector on the CML24BT cpuModule is a standard PC DisplayPort connector complete with latch holes to provide a rugged connecting solution for latching DisplayPort cables. The DisplayPort supports all mandatory features of the VESA Embedded DisplayPort (eDP) 1.3 standard and supports audio over the connection.
  • Page 47 Facing the connector pins of the DisplayPort connector (CN19), the pinout is: AUX- AUX+ CFG1 LN2- LN2+ LN0- LN0+ CFG2 LN3- LN3+ LN1- LN1+ BDM-610000084 Rev B Chapter 3: Connecting the cpuModule 37...

  • Page 48: Serial Port 1 (Cn7) And Serial Port 2 (Cn8)

    Serial Port 1 (CN7) and Serial Port 2 (CN8) Serial Port 1 (COM1) is implemented on connector CN7, and Serial Port 2 (COM2) is implemented on connector CN8. The serial ports are normally configured as PC compatible full-duplex RS-232 ports, but you may use the BIOS Setup program to reconfigure these ports as half-duplex RS-422 or full-duplex RS-422 or RS-485.

  • Page 49: Rs-422 Or Rs-485 Serial Port

    Facing the serial port’s connector pins, the pinout is: RS-422 or RS-485 Serial Port You may use the BIOS setup utility to configure the serial ports as RS-422 or RS-485. In this case, you must connect the serial port to an RS-422 or RS-485 compatible device. When using RS-422 mode, you can use the serial ports in either half-duplex (two-wire) or full-duplex (four-wire) configurations.

  • Page 50: Rs-422 Mode Pinout

    Facing the serial port connector, the pinout is: RXD- RXD+ TXD+ TXD- Rsvd Rsvd Rsvd Rsvd WARNING The pinout of the COM ports in RS-422 mode is not compatible with previous generations of RTD cpuModules. 40 CML24BT cpuModule BDM-610000084 Rev B...

  • Page 51: Rs-485 Mode Pinout

    Rsvd WARNING The pinout of the COM ports in RS-485 mode is not compatible with previous generations of RTD cpuModules. Note When using the serial port in RS-485 mode, the serial transmitters are enabled and disabled under software control. The transmitters are enabled by manipulating the Request To Send (RTS*) signal of the serial port controller.

  • Page 52: Dual Serial Port Modes

    1. Dual RS-485 mode with echo uses dual RS-422 mode pinout WARNING The dual serial port mode pinouts of the COM ports are not compatible with previous generations of RTD cpuModules. Note The cpuModule has 120 Ohm termination resistors. Termination is usually necessary on all RS-422 receivers and at the ends of the RS-485 bus.
  • Page 53 Table 19 COM A (RS-232) and COM B (RS-232) Signal Function In/Out DB-9 Signal Ground — Signal Ground — — Table 20 COM A (RS-422) and COM B (RS-422) Signal Function In/Out DB-9 TXD1- COM A- Transmit Data (–) TXD2- COM B - Transmit Data (–) TXD1+ COM A - Transmit Data (+)

  • Page 54: Advanced Digital I/O (Adio™) Port (Cn6)

    Advanced Digital I/O (aDIO™) Port (CN6) Connector CN6 is configured as an aDIO port. aDIO is 12 digital bits configured as 8-bit programmable and 4-bit port programmable I/O, providing any combination of inputs and outputs. Match, event, and strobe interrupt modes mean no more wasting valuable processor time polling digital inputs.
  • Page 55 Shield GND Shield Ground Note For proper operation at USB 2.0 speeds, be sure to use a cable that is rated for USB 2.0, such as the cable kit supplied by RTD. BDM-610000084 Rev B Chapter 3: Connecting the cpuModule 45...
  • Page 56 Facing the connector pins, the pinout of CN17 is: Shield GND DATA1+ DATA1– VCC1 Shield GND DATA2+ DATA2– VCC2 46 CML24BT cpuModule BDM-610000084 Rev B...
  • Page 57 Ethernet (10/100/1000Base-T and -TX) Connector (CN20) This connector provides a 10/100/1000Base-T Ethernet connection. Table 25 provides the pinout of the Ethernet connector. For 1000Base-T, all four pairs are used for transmit and receive. To use the onboard 10/100/1000 Ethernet controller, Ethernet must be enabled in the BIOS. When enabled, the multi-color LED will blink to indicate an Ethernet connection.

  • Page 58: Pcie/104 Type 2 Bus (Cn1 - Top And Cn2 - Bottom)

    PCIe/104 Type 2 Bus (CN1 - Top and CN2 - Bottom) Connectors CN1 and CN2 carry the signals of the PCIe/104 PCIe bus. These signals match definitions found in the PCI/104-Express & PCIe/104 Specification Version 3.1 from the PC/104 Embedded Consortium. Table 26 lists the pinouts of the PC/104-Express bus connector.
  • Page 59 Table 25 PCIe/104 Type 2 Bus Signal Assignments (Top View) Signal Signal STK0 STK1 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SATA_0Tp (CN1 only) Reserved SATA_0Tn (CN1 only) Reserved Reserved Reserved Reserved Reserved...

  • Page 60: Pcie/104 Type 2 Compatibility

    Table 25 PCIe/104 Type 2 Bus Signal Assignments (Top View) Signal Signal STK2 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SATA_0Rp (CN1 only) Reserved SATA_0Rn (CN1 only) Reserved Reserved Reserved Reserved Reserved...

  • Page 61: Pcie Link Configuration

    PCIe Link Configuration This cpuModule supports a total of four PCIe x1 links for system expansion, all of which are on the bottom-side PCIe/104 connector, CN2. Three of the links on CN2 are connected directly to the chipset. The fourth link is connected through a PCIe packet switch, which shares the bandwidth of a single x1 link back to the chipset with the onboard PCIe-to-PCI bridge and the gigabit Ethernet controller.
  • Page 62 PCI-104 PCI Bus (CN16) Connector CN16 carries the signals of the PCI-104 PCI bus. These signals match definitions of the PCI Local Bus specification Revision 2.1. Table 41 list the pinouts of the PCI-104 bus connector. Table 27 PCI-104 Bus Signal Assignments +5V_STBY +5 V AD00...

  • Page 63: Error Reporting

    PCI-104 PCI Bus Signals The following are brief descriptions of the PC-104 PCI bus signals. Address and Data AD[31:00] — Address and Data are multiplexed. A bus transaction consists of an address cycle followed by one or more data cycles. C/BE[3:0]# —...
  • Page 64 PCI bus card. This is always driven by the cpuModule. By default, the signaling level is set to +3.3 V. For information on configuring VIO for +5 V, contact RTD Technical Support. WARNING The power +5 V and +12 V power rails are the only supply inputs required for board operation.

  • Page 65: Optional Rtc Battery Input (Cn13)

    Optional RTC Battery Input (CN13) The optional RTC battery input is the connection for an external backup battery. This battery is used by the cpuModule when system power is removed in order to preserve the date and time of the real time clock. Connecting a battery is only required to maintain time when power is completely removed from the cpuModule.
  • Page 66 56 CML24BT cpuModule BDM-610000084 Rev B...

  • Page 67: Chapter 4 Using The Cpumodule

    This chapter provides information for users who wish to develop their own applications programs for the CML24BT cpuModule. This chapter includes information on the following topics: The RTD Enhanced BIOS—page 54 Operating System Specific Usage —page 56 Non-Standard Serial Port Modes—page 57 Advanced Digital I/O Ports (aDIO™)—page 58...

  • Page 68: The Rtd Enhanced Bios

    The RTD Enhanced BIOS The RTD Enhanced BIOS is software that interfaces hardware-specific features of the cpuModule to an operating system (OS). Physically, the BIOS software is stored in a Flash EPROM on the cpuModule. Functions of the BIOS are divided into two parts.

  • Page 69: Field Selection

    WARNING Incorrect modifications to the BIOS can cause your system to break. If you are unsure of any changes made to the BIOS there is a Load RTD Defaults option under the Exit tab in the SCU. This option restores the BIOS to the default factory settings.

  • Page 70: Operating System Specific Usage

    (most notably SATA), and may not work as expected. At the time of publication, RTD has validated openSUSE 13.1, openSUSE 13.2, and Ubuntu 15.10 (all 64-bit) on this platform. However, any standard PC Linux distribution with a 3.11 or newer kernel is expected to work.

  • Page 71: Non-Standard Serial Port Modes

    Non-Standard Serial Port Modes It is possible to change the input clock rate for the UARTs of the cpuModule to allow the serial ports to operate at higher speeds than 115,200 bps. This is accomplished by modifying the baud rate multiplier for each serial port.

  • Page 72: Advanced Digital I/O Ports (Adio™)

    This board supports 12 bits of TTL/CMOS compatible digital I/O (TTL signaling). These I/O lines are grouped into two ports, Port 0 and Port 1. Port 0 is bit programmable; Port 1 is byte programmable. Port 0 supports RTD’s Advanced Digital Interrupt modes. The three modes are strobe, match and event. Strobe mode generates an interrupt and latches Port 0 when the strobe input transitions from low to high.
  • Page 73 Table 38 DIO-Control I/O Address EC3h—Read Access Strobe 1 Status Strobe 0 Status 0 = no strobe 0 = no strobe Multi-Function 1 = strobe Digital IRQ Mode 1 = strobe Register Select 00 = Disabled 00 = clear mode 01 = strobe Mode Digital IRQ Status Port 1 Direction...

  • Page 74: Port 1 Data Register Is A Read/Write Byte Direction

    Advanced, RTD Advanced Options,RTD aDIO, aDIO Interrupt. The Digital I/O can use interrupts 3, 5, 6, 10, and 11. To configure the aDIO interrupt, navigage to the BIOS Setup option, the “Advanced”, “RTD aDIO”, and “aDIO Interrupt” menu options. The BIOS will automatically reserve the selected interrupt so that is it not assigned to PCI devices.

  • Page 75: Strobe Mode

    Figure 6 aDIO Match Mode Strobe Mode Another interrupt mode supported by aDIO is Strobe mode. This allows the strobe pin of the DIO connector to trigger an interrupt. A low to high transition on the strobe pin will cause an interrupt request. The request will remain high until the Clear Register is read from.

  • Page 76: Sata Controller Configuration

    SATA Controller Configuration The CML24BT has two SATA links. One SATA link resides on the top PCIe/104 Type 2 connector (CN1), and the second SATA link connects to the onboard SATA storage. Both may be enabled or disabled through the BIOS setup.

  • Page 77: Watchdog Timer Control

    The Advanced Watchdog Timer has a Setup Register and a Runtime Register. The Setup Register is set by the BIOS, and can be adjusted by entering the BIOS Setup Utility, and going to “Advanced”, “RTD Advanced Options”, “RTD Miscellaneous Feature Control”. The Setup Register may also be read by the driver to determine if the Watchdog is enabled, and the interrupt and base address that it is using.

  • Page 78: Thermal Management

    Thermal Management The cpuModule has several thermal features which can be used to monitor and control the board’s temperature when extreme operating conditions are prevalent. Thermal Warning The cpuModule includes a Thermal Warning mechanism which will assert a signal when the processor’s temperature has reached or exceeded 100 C.

  • Page 79: Power Management

    Power Management The CML24BT cpuModule supports various powering mechanisms which allow the cpuModule to monitor power consumption and temperature, and achieve minimal power consumption states. These unique features include thermal monitoring and thermal throttling, as well as ACPI low power modes. Various wake options are also available to resume normal system power.

  • Page 80: At Vs. Atx Power Supplies

    AT vs. ATX Power Supplies Both AT and ATX power supplies may be used with the CML24BT cpuModule, however AT power supplies do not provide any standby power to the cpuModule. When an AT power supply is used to power the system, low power modes that require a standby power to wake the system will not be fully supported.

  • Page 81: Multi-Color Led

    Multi-Color LED The CML24BT has a Multi-Color LED which can be enabled or disabled in the BIOS setup screen. The color of the LED indicates the status of the board, as shown in Table 45. Table 45 LED Colors Color Description Green Normal Operation...

  • Page 82: Reset And Event Status Register

    Reset and Event Status Register The cpuModule has several different signals on board which can cause a system reset. If a reset occurs, the reset status register can be used to see which reset (or resets) have been asserted on the cpuModule. These resets may be cleared by the user.
  • Page 83 Table 50 Reset and Event Status I/O Address ED2h - Read Access WDT Trip PwrGood 1.8V Platform Reset Mem. Term. Voltage 1 = reset asserted 1 = reset asserted 1 = reset asserted 1 = reset asserted 0 = no reset 0 = no reset 0 = no reset 0 = no reset...

  • Page 84: Features And Settings That Can Affect Boot Time

    ROMs. During POST, the BIOS executes the card's extension code. This extension code is third-party code, which is beyond RTD's control. The BIOS extension will most likely increase the boot time. Exactly how much it increases boot time will depend on the particular card and firmware version.

  • Page 85: System Recovery

    It is also a good starting point when making BIOS changes. After restoring defaults, the BIOS settings should be reviewed and modified as needed. The default BIOS can be restored either by using Reset Button Recovery, or the “Load RTD Defaults” option in the BIOS.
  • Page 86 72 CML24BT cpuModule BDM-610000084 Rev B...

  • Page 87: Appendix A Hardware Reference

    Appendix A Hardware Reference This appendix provides information on CML24BT cpuModule hardware, including: Jumper Settings and Locations—page 74 Onboard PCI/PCIe Devices — page 75 Physical Dimensions—page 76 Heatsink Dimensions—page 77 Flat-Heatspreader Dimensions—page 79 BDM-610000084 Rev B Appendix A: Hardware Reference 73...

  • Page 88: Jumper Settings And Locations

    Jumper Settings and Locations Many cpuModule options are configured by positioning jumpers. Jumpers are labeled on the board as JP followed by a number. Figure 7 shows the jumper locations that are used to configure the cpuModule. Table 53 lists the jumpers and their settings.

  • Page 89: Onboard Pci/Pcie Devices

    Onboard PCI/PCIe Devices The CML24BT cpuModule has several onboard PCI/PCIe devices, all of which are listed in the table below. This table shows a typical configuration, and the actual devices may change based on BIOS settings. Table 54 Onboard PCI/PCIe Devices Device ID Vendor ID Description...

  • Page 90: Physical Dimensions

    Physical Dimensions Figure 8 shows the mechanical dimensions of the CML24BT cpuModule. Figure 8 CML24BT Physical Dimensions (±0.005 inches) 76 CML24BT cpuModule BDM-610000084 Rev B...

  • Page 91: Heatsink Dimensions

    Dimensions Heatsink To maximize the thermal performance of the cpuModule while keeping the total board weight to a minimum, various heatsinks are offered with each ordering part number. Use the table below to correlate the heatsink figure to each ordering part number. Table 55 CML24BT cpuModule Model Options Part Number Core Frequency...
  • Page 92 Edge near PCIe/104 Connector Figure 11 CML24BTQ1910 Heatsink 78 CML24BT cpuModule BDM-610000084 Rev B...
  • Page 93 Dimensions Flat-Heatspreader For cooling solutions where it is desirable to mount the cpuModule to a flat surface, the CML24BT may be ordered with a flat heatspreader instead of the standard passive heatsink. Each flat-heatspreader has five mounting locations which use Heli-Coil coils, 6-32 UNC. Use the table below to correlate the heatsink figure to each ordering part number.
  • Page 94 80 CML24BT cpuModule BDM-610000084 Rev B...

  • Page 95: Appendix B Troubleshooting

    Appendix B Troubleshooting Many problems you may encounter with operation of your CML24BT cpuModule are due to common errors. This appendix includes the following sections to help you get your system operating properly. Common Problems and Solutions—page 80 Troubleshooting a PC/104 System —page 81 How to Obtain Technical Support—page 82 BDM-610000084 Rev B Appendix B: Troubleshooting 79...

  • Page 96: Common Problems And Solutions

    Table 56 lists some of the common problems you may encounter while using your CML24BT cpuModule, and suggests possible solutions. If you are having problems with your cpuModule, review this table before contacting RTD Technical Support. Table 56 Troubleshooting Problem...

  • Page 97: Troubleshooting A Pc/104 System

    Troubleshooting a PC/104 System If you have reviewed the preceding table and still cannot isolate the problem with your CML24BT cpuModule, please try the following troubleshooting steps. Even if the resulting information does not help you find the problem, it will be very helpful if you need to contact technical support. Simplify the system.

  • Page 98: How To Obtain Technical Support

    List of settings from cpuModule Setup program • Printout of autoexec.bat and config.sys files (if applicable) • Description of problem • Circumstances under which problem occurs Then contact RTD Technical Support: Phone: 814-234-8087 Fax: 814-234-5218 E-mail: techsupport@rtd.com 82 CML24BT cpuModule BDM-610000084 Rev B...

  • Page 99: Appendix Cidan™ Dimensions And Pinout

    RTD modules installed in IDAN frames are called building blocks. IDAN building blocks maintain the simple but rugged stacking concept of PC/PCI-104 and PCIe/104. Each RTD module is mounted in its own IDAN frame and all I/O connections are brought to the walls of each frame using standard PC connectors.

  • Page 100: Idan Contents

    IDAN Contents The IDAN-CML24BT contains both a CML24BT cpuModule and a SATA34106 storage module which provides a 2.5” SATA interface to the first SATA link on the CPU’s top PCIe/104 Type 2 connector (CN1). Also inside the IDAN-CML24BT unit is a CMOS battery which is connected to the battery input connection of the cpuModule’s Utility Port 2.0 connector.

  • Page 101: Idan Connector Locations

    IDAN Connector Locations The diagrams below show the connector locations for the headers of the CML24BT as they are brought out on the front and back panels of the IDAN-CML24BT. For a full description of each connector on the CML24BT, refer to Connecting the cpuModule on page 27.
  • Page 102 Table 57 IDAN-CML24BT Connectors Designator Function Connector IDAN Panel Mating Description Connector Connector USB Port (Utility Port 2.0) USB Type A Series “A” Receptacle Series “A” Plug aDIO 25-pin D (female) Adam Tech DB25SD Adam Tech DB25PD Serial Port 1 (COM1&3) 9-pin D (male) Adam Tech DE09PD Adam Tech DE09SD...

  • Page 103: External I/O Connections

    External I/O Connections Table 58 COM1/COM2 (Single Port Mode)— 9-Pin D Connector (male) CPU Pin IDAN Pin Single Single Single (DB-9) RS-232 RS-422 RS-485 TXD– D– — — TXD+ — — RXD+ — — — RXD– — — — Table 59 COM1/COM2 (Dual Port Mode)— 9-Pin D Connector (male) CPU Pin IDAN Pin Dual...
  • Page 104 Table 60 aDIO — 25-Pin D Connector (female) IDAN Pin # aDIO Port CPU Pin # CPU Pin # (CN6) (CN5) reserved — — reserved — — reserved — — Soft Power Button Input — GND (for RTC Battery Input) —...
  • Page 105 Table 61 SVGA — 15-Pin High Density D Connector (female) IDAN Pin # Signal Function CPU Pin # Red Analog Output Green Green Analog Output Blue Blue Analog Output Reserved Reserved — Ground Ground Ground Ground +5 V + 5 Volts Ground Reserved Reserved...
  • Page 106 Table 62 DisplayPort Connector Signal Standard Function DVI / HDMI mode In/Out LN0+ Main Link, Lane 0 (positive) TMDS Channel 2 (positive) Ground Ground LN0- Main Link, Lane 0 (negative) TMDS Channel 2 (negative) LN1+ Main Link, Lane 1 (positive) TMDS Channel 1 (positive) Ground Ground...
  • Page 107 Table 63 USB — 9-Pin D Connector (male) IDAN Pin # Signal Function Mode CPU Pin # VCC1 +5 V to USB1 output Data USB1– USB1 Data– input/output Data USB1+ USB1 Data+ input/output Ground — Shield GND Shield Ground — VCC2 +5 V to USB2 output...
  • Page 108 92 CML24BT cpuModule BDM-610000084 Rev B...

  • Page 109: Drivers And Example Programs

    For the latest application notes, refer to the RTD website. Drivers and Example Programs To obtain the latest versions of drivers and example programs for this cpuModule, refer to the RTD website. Interrupt Programming For more information about interrupts and writing interrupt service routines, refer to the following book:...
  • Page 110 94 CML24BT cpuModule BDM-610000084 Rev B...
  • Page 111 RTD Embedded Technologies, Inc. warrants the hardware and software products it manufactures and produces to be free from defects in materials and workmanship for one year following the date of shipment from RTD Embedded Technologies, Inc. This warranty is limited to the original purchaser of product and is not transferable.
  • Page 112 96 CML24BT cpuModule BDM-610000084 Rev B...

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