Advantech SOM 144 Design Specification
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Advantech SOM 144 Design Specification

Advantech SOM 144 Design Specification

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SOM 144
System-on-Module
Design Specification Rev. 1.0

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Summary of Contents for Advantech SOM 144

  • Page 1 SOM 144 System-on-Module Design Specification Rev. 1.0...
  • Page 2 All brand and product names mentioned herein are trademarks or registered trademarks of their respective holders. Acknowledgments SOM 144 is a trademark of Advantech Co., Ltd. IBM, PC/AT, and PS/ 2 are trademarks of International Business Machines Corporation. MS- DOS and Windows CE are trademarks of Microsoft Corporation. All other brand and product names mentioned herein are trademarks or registered trademarks of their respective holders.
  • Page 3 To keep user’s current with the latest version of the Advantech SOM 144 specifications and designs, this page lists the most recently printed revision of the SOM 144 specifica- tion and design guide. This revision history corresponds with the revision on the SOM 144 specifications and designs.

  • Page 4: Table Of Contents

    (VGA/Ethernet/IrDA/Printer/FDD/ATX) ..13 3.2.1 VGA ................. 13 3.2.2 Ethernet ..............14 3.2.3 IrDA ................. 15 3.2.4 LPT/FDD ..............15 3.2.5 Miscellaneous ............17 Chapter 4 Mechanical Characteristics Mechanical Characteristics .......... 20 4.1.1 Dimensions of SOM 144 Module ......20...
  • Page 5 4.1.2 SOM 144 Solution Board Layout ......21 4.1.4 SODIMM Layout ............. 22 4.1.3 Recommand Component Suppliers ......22 4.1.5 SOM 144 Module Installation ........23 4.1.6 SOM 144 Module Removal ........24 Chapter 5 Electrical Characteristics PCI Bus ................28 5.1.1 IDSEL mapping ............

  • Page 7: Chapter 1 General Information

    General Information This chapter explains the concept of the SOM 144 (System-on-Module) module. It also gives the reasons why SOM 144 can give the most value and benefits to embedded system applications.
  • Page 8 Based on this specification, it is easier to develop a customer’s solution board with an off the shelf SOM 144 module and reduce the time to market of your product. With the SODIMM socket and within 5 sec, a SOM 144 module is easy to install into or unload from customer’s solution board.

  • Page 9: Chapter 2 Connector Assignments And Descriptions

    Connector Assignments and Descriptions This chapter provides the pinout tables for the SOM 144 PCI interface, including the 144-pin SODIMM and recommended 80-pin frontend connector. Chapter 2 Pinout of SOM 144/PCI Interfaces...
  • Page 10 AD31 AD30 AD29 AD28 AD27 AD26 AD25 AD24 CBE#3 AD22 AD23 AD20 AD21 AD18 AD19 AD16 AD17 FRAME# CBE#2 TRDY# IRDY# STOP# DEVSEL# LOCK# AD15 GPERR# AD14 SERR# AD13 CBE#1 AD12 AD11 CBE#0 AD10 RESERVED SOM 144 Design Specification Rev.1.0...
  • Page 11 BUZZER# MSDAT MSCLK KBDAT KBCLK OVCR# USB_EN# USB01 ACSDTO USB00 ACBITCLK USB11 ACSDTI USB10 ACSYNC EXTRST# ACRST# DCD2# DCD1# DSR2# DSR1# RXD2 RXD1 RTS2# RTS1# TXD2 TXD1 CTS2# CTS1# DTR2# DTR1# RI2# RI1# Chapter 2 Pinout of SOM 144/PCI Interfaces...
  • Page 12 TXDP RXDN RXDP 5VSB 5VSB 5VSB PME# PWBT PS_ON CKRUN# RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED SPEEDLED ACTLED LILED SDLED SOM 144 Design Specification Rev.1.0...
  • Page 13 Signal Description This chapter details each signal defined in the SOM 144 Module. Chapter 3 Signal Description...

  • Page 14: 144 Pin Sodimm (Pci/Ide/ Serial Port /Usb/Ac97/Kb/Mouse)

    Bus Request signals of 3 external PCI Masters. When asserted, it means the PCI Master is request- ing the PCI bus ownership from the arbiter. Please refer the specification for your SOM 144 Module for used/ unused PCI Masters and shared PCI Masters with onboard devices.

  • Page 15: Ide

    PCI interrupts from CPU-PCI bridge. For further descriptions of PCI signals please refer to Chapter 4. 3.1.2 All required pullups are integrated on the SOM 144 Module. ESD and EMV protection devices need to be integrated on the backplane. PIDE_D0..15 Primary/ Secondary IDE ATA Data Bus.
  • Page 16 IDE device that the avail- able Write Data is already asserted by IDE Bus- master in PIO and DMA mode. In Ultra-33 mode, this pin is driven by IDE Busmaster to force IDE SOM 144 Design Specification Rev.1.0...

  • Page 17: Serial Ports

    This active low input is for the serial port. Hand- shake signal which notifies the UART that the tele- phone ring signal is detected by the modem. 3.1.4 All pullups are integrated on the SOM 144 Module. For ESD and Chapter 3 Signal Description...

  • Page 18: Ac97

    PS/2 Keyboard/Mouse All signals are not fused and without ESD and EMV protection cir- cuitry. Protection devices will need to be incorporated onto the SOM 144 backplane. MSDAT This is the bi-directional Mouse data signal. SOM 144 Design Specification Rev.1.0...

  • Page 19: Miscellaneous

    RESERVED Reserved pin. 3.2.1 All pullups are integrated on the SOM 144 Module. For ESD and EMV protection please integrate the parts on you backplane. Horizontal Sync: This output supplies the horizon- tal synchronization pulse to the monitor. It is nor- mally not needed for flat panels.

  • Page 20: Ethernet

    All required pullups are integrated on the SOM 144 Module. ESD and EMV protection devices need to the please integrated on the back- plane. The SOM 144 Ethernet Interface is designed for use with a 1:1/ 1:1 external transformer. Please refer to the electrical specification for further details.

  • Page 21: Irda

    All LED signals pulls a external LED with max. 5mA to GND. 3.2.3 IrDA IrDA fuction of the SOM 144 Modules supports not only legacy IR IrDA 1.0 SIR, but also higher transmision protocals IrDA 1.1 MIR(1.152Mbps), and IrDA 1.1 FIR(4Mbps) and consumer IR.
  • Page 22 PD5..7 LPT Mode:This bi-directional parallel data bus bit 5..7 are used to transfer information between the SOM 144 Module and peripherals. FDD Mode: Not used. SOM 144 Design Specification Rev.1.0...

  • Page 23: Miscellaneous

    SLIN# LPT Mode:This active low signal for the SOM 144 Module to select the printer. FDD Mode:STEP#. Step Output Pulses. This ac- tive low output produces a pulse to move the head to another track. ACK# LPT Mode:This active low output from the printer indicates it has received the data and is ready to receive new data.
  • Page 24 PCI Clock signal. When the CKRUN# signal is not used, this pin should be connected to an external pull-down resistor. SDLED The SSD LED indicates the status of the SSD on the SOM 144 module SOM 144 Design Specification Rev.1.0...

  • Page 25: Chapter 4 Mechanical Characteristics

    Mechanical Characteristics Chapter 4 Mechanical Characteristics...

  • Page 26: Dimensions Of Som 144 Module

    Mechanical Characteristics 4.1.1 Dimensions of SOM 144 Module Figure 4-1: Dimensions of SOM 144’ Module SOM 144 Design Specification Rev. 1.0...

  • Page 27: 4.1.2 Som 144 Solution Board Layout

    4.1.2 SOM 144 Solution Board Layout Figure 4-2: SOM 144 Solution Board Layout Chapter 4 Mechanical Characteristics...

  • Page 28: Sodimm Layout

    4.1.3 Recommand Component Suppliers At least 3.0 mm height is needed between the carrier board's surface and the bottom of SOM 144 Modules.Therefore, SODIMM socket must meet this requirement and so as the recom- mended board -to-board connector. Some suggested suppliers are listed below.

  • Page 29: 4.1.5 Som 144 Module Installation

    4.1.5 SOM 144 Module Installation 1. Plug the SOM 144 module into the solution board's SODIMM socket 2. Connet the front-end connector to the solution board 3. Screw the SOM 144 Module and the solution board together Figure 4-4: SOM 144 Module Installation...

  • Page 30: 4.1.6 Som 144 Module Removal

    1. Unscrew two screws 2. Bend out the positioning holders of the SODIMM socket and release the SOM 144 Module 3. Unplug the SOM 144 Module from the socket Figure 4-5: SOM 144 Module Removal SOM 144 Design Specification Rev. 1.0...
  • Page 31 Chapter 4 Mechanical Characteristics...

  • Page 32: Chapter 5 Electrical Characteristics

    Electrical Characteristics Chapter 5 Electrical Characteristics...

  • Page 33: Pci Bus

    IRQY INTB# IRQZ AD22 INTC# IRQW INTD# IRQX INTA# IRQZ INTB# IRQW AD23 INTC# IRQX INTD# IRQY 5.1.3 Onboard resources The onboard devices of your SOM 144 Module need IRQ and DMA resources. SOM 144 Design and Specification Rev. 1.0...

  • Page 34: Power Supply Definition

    Current rating per pin: 0.3A at SODIMM , 0.4A at the recom- mended front-end connector. The SOM 144 Module's power pins can not be used to supply power to I/O Boards. The I/O slots' power must be supplied by the solution board of the SOM 144 Module.

  • Page 35: Irda

    SOM 144 Module supplier. SOM 144 Modules don't support a standard floppy interface. It's recommended for the SOM 144 Module designer to support a extension FDD port support on printer port signals. Please ask your SOM 144 Module supplier for this.

  • Page 36: Appendix A Electrical Characteristics

    solution board for 10/100 BaseT support, such as Pulse H1102 or others take following specifications of Ethernet transformer: Tx turns ratio: 1:1 +/- 5% Rx turns ratio: 1:1 +/- 5% Insertion Loss 100KHz to 100MHz: -1.1 dB Max Return Loss 1 to 80 MHz: -10 dB Max Differential to Common Mode Rejection, 1 to 80 MHz: -30 dB Min Cross Talk 1 to 80 MHz: max.
  • Page 37 SOM 144 Design and Specification Rev. 1.0...
  • Page 38 LITERATURE, STANDARDS, LINKS This SOM 144 specification and de- sign guide does not cover informa- tion regarding standard PC technol- ogy. Please refer to this selection of different information sources for your convenience. Appendix A LITERATURE, STANDARDS, LINKS...

  • Page 39: Standard Ps/2 - Connectors

    It's highly recommended to have a view on "4..2 I/O cable" in this specification by using harddisks on DMA33 or PIO4-Mode. The USB specification maybe obtained from the USB Implementers Forum web site at www.usb.org SOM 144 Design Specification Rev.1.0...

  • Page 40: Pci

    ATX specification. Some other documents are available on http:// www.teleport.com/~ffsupprt/. AC-LINK 97 (AC97) The SOM 144's AC97 interfaces is compliant with AC97 Specification Revision 1.3, 2.0, and 2.1. For Revision 2.1 specification, plese refer ftp://download.intel.com/ial/scalableplatforms/audio/ac97r21.pdf Appendix A LITERATURE, STANDARDS, LINKS...

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