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EM9 - Embedded System Module COM with MPC8548


This product has been discontinued.

The EM9 Computer-On-Module is an MPC8548/MPC8543 PowerPC based embedded SBC for use in different industrial environments, with custom I/O in an onboard FPGA and front connectors.

Download data sheet

  • EM9 Product ImageEM9 configuration example (without a heat sink)
  • EM9 Product Image

Main Features

  • MPC8548 (or MPC8543), up to 1.5 GHz
  • FPGA 33,216 LEs
  • 32-bit/33/66-MHz PCI
  • Up to 2 GB onboard DDR2 SDRAM
  • 1 GB NAND Flash
  • 128 KB FRAM, 32 MB additional SDRAM
  • 3 (or 2) Gb Ethernet, 1 COM (RJ45)
  • User defined I/O functions (COMs, CAN bus, graphics, IDE etc.) optional via FPGA on carrier
  • Stackable with PCI-104
  • MENMON BIOS for PowerPC cards
  • -40 to +85°C screened
EM9 Product Image

Technical Data

PowerPC PowerQUICC III MPC8548, MPC8548E, MPC8543 or MPC8543E
  • 800MHz up to 1.5GHz
  • Please see Standard Configurations for available standard versions.
  • e500 PowerPC core with MMU and double-precision embedded scalar and vector floating-point APU
  • Integrated Northbridge and Southbridge
  • 2x32KB L1 data and instruction cache, 512KB/256KB L2 cache integrated in MPC8548/MPC8543
  • Up to 2GB SDRAM system memory
    • Soldered
    • DDR2
    • Up to 300 MHz memory bus frequency, depending on CPU
  • Up to 1GB soldered NAND Flash (and more, depending on chip availability), FPGA-controlled
  • 32MB additional DDR2 SDRAM, FPGA-controlled, e.g. for video data and NAND Flash firmware
  • 16MB boot Flash
  • 128KB non-volatile FRAM
  • Serial EEPROM 4kbits for factory settings
Mass Storage
  • Parallel IDE (PATA)
    • One port for hard-disk drives
    • Available via I/O connector
    • FPGA-controlled
    • PIO mode 0 and UDMA mode 5 (UDMA100) support
  • Up to 1GB soldered ATA NAND Flash (and more, depending on chip availability), FPGA-controlled
  • Available via I/O connector
  • FPGA-controlled
  • 800 x 600, 60Hz/75Hz, 6-bit RGB
  • Three Ethernet channels
    • Three 10/100/1000Base-T Ethernet channels with MPC8548/E
    • Two 10/100/1000Base-T Ethernet channels with MPC8543/E
    • Three RJ45 connectors at front panel
    • Six onboard LEDs to signal LAN Link and Activity
  • One RS232 UART (COM1)
    • One RJ45 connector at front panel
    • Data rates up to 115.2kbit/s
    • 16-byte transmit/receive buffer
    • Handshake lines: CTS, RTS; or: COM2, without any COM handshake lines
  • Further I/O depending on FPGA configuration
Front Connections
  • Three Ethernet (RJ45)
  • One RS232 UART COM1 (RJ45)
  • Standard factory FPGA configuration:
    • Main bus interface
    • Interrupt controller, reset controller
    • 16Z070_IDEDISK - IDE controller for NAND Flash
    • 16Z043_SDRAM - Additional SDRAM controller (32MB DDR2)
    • 16Z016_IDE - IDE controller (PIO mode 0 and UDMA mode 5)
    • 16Z044_DISP - Display controller (800 x 600, 60Hz/75Hz, 6-bit RGB)
    • 16Z031_SPI - SPI touch panel controller
    • 16Z125_UART - UART controller (controls COM10..COM12)
    • 16Z034_GPIO - GPIO controller (8 I/O lines, system control signals)
  • The FPGA offers the possibility to add customized I/O functionality. See FPGA.
PCI Interface
  • 32-bit, 33/66-MHz PCI interface at PCI-104 connectors J1 and J2
  • Compliant with PCI Specification 2.2
  • Support of four external masters
  • Real-time clock
  • Temperature sensor, power supervision and watchdog
Electrical Specifications
Supply voltage/power consumption:
  • +5V (-2%/+5%), 2A typ.
  • +3.3V (-2%/+5%), 0.5A typ.
Mechanical Specifications
  • Dimensions: conforming to ESM specification (PCB: 149mm x 71mm), Type I-S, except height: approx. 1mm higher than standard
  • Weight: 108g (w/o heat sink); standard heat sink: 142g
Environmental Specifications
  • Temperature range (operation):
    • -40..+85°C
    • Airflow: min. 10m³/h
  • Temperature range (storage): -40..+85°C
  • Relative humidity (operation): max. 95% non-condensing
  • Relative humidity (storage): max. 95% non-condensing
  • Altitude: -300m to + 3,000m
  • Shock: 15g/11ms
  • Bump: 10g/16ms
  • Vibration (sinusoidal): 1g/10..150Hz
245,671h @ 40°C according to IEC/TR 62380 (RDF 2000)
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
Tested according to EN 55022 (radio disturbance), IEC 61000-4-2 (ESD) and IEC 61000-4-4 (burst)
BIOS/Boot Loader
Software Support
  • Linux
  • VxWorks
  • QNX
  • INTEGRITY (Green Hills Software) support available. Please contact Green Hills for further information.
  • OS-9 (on request)
  • For more information on supported operating system versions and drivers see Software.


FPGA Capabilities
  • FPGA Altera Cyclone II EP2C35
    • 33,216 logic elements
    • 483,840 total RAM bits
  • Connection
    • Total available pin count: 81 pins
    • Functions available via I/O connector J2
  • MEN offers a starter kit for this computer-on-module. The kit includes a suitable carrier board with different I/O connectors for FPGA signals. An FPGA development package for this hardware kit is also available for download.


  • Several PowerQUICC III types with different clock frequencies
  • MPC8548 or MPC8548E
    • 1 GHz, 1.2 GHz, 1.33 GHz or 1.5 GHz
  • MPC8543 or MPC8543E
    • 800 MHz or 1 GHz
  • System RAM
    • 512 MB, 1 GB or 2 GB
  • NAND Flash
    • 0 MB up to maximum available
  • FRAM
    • 0 KB or 128 KB
  • Boot Flash
    • 8 MB or 16 MB
  • Front Connections
    • D-Sub connectors for Ethernet and COM
    • LAN1 and LAN2 via one 9-pin D-Sub connector with 10/100Base-T support
    • LAN3 and COM1 via one 9-pin D-Sub connector (LAN3 with 10/100Base-T)
  • Ethernet
    • Only two channels instead of three with MPC8543
  • COM2
    • Additional COM2 RS232 interface
    • COM1 and COM2 sharing front connector
    • Both COMs without handshake lines
Altera Cyclone II EP2C20 instead of EP2C35
  • 18,752 logic elements
  • 239,616 total RAM bits
Power Supply
Single +5V power supply (instead of +5V and +3.3V)
Some of these options may only be available for large volumes.
Please ask our sales staff for more information.

Ordering Information



Linux native driver (MEN) for 16Z044_DISP (frame buffer)


Linux native driver (MEN) for 16Z025_UART, 16Z057_UART and 16Z125_UART


MDIS5 low-level driver sources (MEN) for 16Z034_GPIO, 16Z037_GPIO and 16Z127_GPIO


MDIS5 System (and Device Driver) Package (MEN) for Linux. 
This software package includes most standard device drivers available from MEN.


General Linux BSP for A17, EM9, EM9A, EK9, F50C, F50P and XM50


VxWorks native driver (MEN) for 16Z025_UART, 16Z057_UART and 16Z125_UART


MDIS5 low-level driver sources (MEN) for 16Z034_GPIO, 16Z037_GPIO and 16Z127_GPIO


VxWorks 6.9 BSP (MEN) for A17, EK9, EM9, EM9A, F50C, F50P and XM50


VxWorks 6.4/6.5 BSP (MEN) for A17, EK9, EM9, EM9A, F50C, F50P and XM50


MDIS5 System (and Device Driver) Package (MEN) for VxWorks. This software package includes most standard device drivers available from MEN.


QNX BSP (MEN) for EM9 and EK9


MDIS4 system (and device driver) package (MEN) for QNX, source code. This software package includes most standard device drivers available from MEN.


QNX native driver (MEN) for 16Z044_DISP (frame buffer)


QNX 6.5 native driver (MEN) for 16Z025_UART and 16Z125_UART


QNX 6.4 native driver (MEN) for 16Z025_UART and 16Z125_UART


QNX 6.3 native driver (MEN) for 16Z025_UART and 16Z125_UART


MDIS5 low-level driver sources (MEN) for 16Z034_GPIO, 16Z037_GPIO and 16Z127_GPIO


This product is designed to work under the INTEGRITY RTOS from Green Hills Software. An INTEGRITY Board Support Package for this board is provided by Green Hills Software. For more information and product support please contact Green Hills Software (www.ghs.com).

MENMON is an MEN firmware/BIOS for PowerPC platforms.

MENMON (Firmware) (MEN) for EM9, EM9A and EK9 (object code)

Application Examples

Textile Machine Supervision

These Human-Machine Interfaces based on the computer-on-module concept are used in the interaction with different types of textile machines.

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