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EM9A - ESM COM with PowerPC MPC8548


The EM9A 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.

  • EM9A Product ImageEM9A Embedded System Module COM with MPC8548
  • EM9A 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 Gb Ethernet, 2 COM (J3)
  • User defined I/O functions optional via FPGA
  • MENMON BIOS for PowerPC cards
  • -40 to +85°C screened
EM9A 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, 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 J2
    • FPGA-controlled
    • PIO mode 0 and UDMA mode 5 (UDMA100) support
  • Up to 1GB soldered ATA NAND Flash, FPGA-controlled
  • Available via I/O connector J2
  • 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
    • On board-to-board connector J3
  • Two RS232 UARTs (COM1/COM2)
    • On board-to-board connector J3
    • Data rates up to 115.2kbit/s
    • 16-byte transmit/receive buffer
    • Handshake lines: CTS, RTS
  • Further I/O depending on FPGA configuration
  • 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 II-N, except height: approx. 1mm higher than standard
  • Heat sink is always tailor-made to the customer's needs (no heat sink included in standard version)
  • Weight: 90g (w/o heat sink)
Environmental Specifications
  • Temperature range (operation):
    • -40..+85°C (screened), with appropriate heat sink
    • 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)
Software Support
  • Linux
  • VxWorks
  • QNX (on request)
  • 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 a computer-on-module of the same product family (version with front I/O). 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 1GB
  • FRAM
    • 0 KB or 128 KB
  • Boot Flash
    • 8 MB or 16 MB
  • Only two channels instead of three with MPC8543
Altera Cyclone II EP2C20 instead of EP2C35
  • 18,752 logic elements
  • 239,616 total RAM bits
Thermal Characteristics
The ESM module's heat sink is always tailor-made to the customer's thermal requirements.
Power Supply
Single +5V power supply (instead of +5V and +3.3V)
PCI and I/O connectors can also be placed for face-up assembly (ESM Type S)
Some of these options may only be available for large volumes.
Please ask our sales staff for more information.

Ordering Information

Standard EM9A Models

MPC8548 / 1.33 GHz, 512 MB DDR2 DRAM, 1 GB NAND Flash, 32 MB graphics memory, 128 KB FRAM, onboard I/O 3 Gb Ethernet, 2 UARTs, no front I/O, without heat sink

Related Hardware
XM50 - ESMexpress COM with PowerPC MPC8548

MPC8548 / 1.33 GHz, 512 MB DDR2 DRAM, 2 MB SRAM, 128 KB FRAM, -50..+85°C screened




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


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


QNX BSP (MEN) for EM9 and EK9


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

Ventilators for Anesthesia

The computing heart of each ventilation control unit are two of the PowerPC based Computer-on-Modules.

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