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Diamond Point International

MEN Mikro A15C - 6U VME64 MPC8245 CPU Board (PMC Modules)

Up to 2 GB (ECC) DRAM, 2 PMC Slots, 2 Gigabit/1 Fast Ethernet


The A15C is a PowerPC® MPC8245 based single-board computer for embedded applications. It features full VME64 support and it can be used as a master or a slave in a VMEbus environment. The A15C provides 1 MB local dual-ported SRAM for slave access and communication between the local CPU and another VMEbus master.

The CPU card comes with the MPC8245 PowerPC® with 400 MHz clock frequency and local 32-bit/33-MHz PCI data bus. It is a complete state-of-the-art SBC offering DRAM, Flash and CompactFlash® memory, dual Fast Ethernet, four COMs, USB, IDE and keyboard/mouse interfaces as well as an optional onboard hard disk.

In addition, the A15C can be equipped with PMC mezzanine cards supporting both front I/O and rear I/O. PMCs may particularly be used for intelligent telecom I/O. The modular combination of I/O functionality on a single-board computer allows to build up tailored control systems which appear as customized solutions based on standard components.

Depending on the kind of I/O requirements, further standard versions of A15 are availabe for other mezzanine standards.

The A15 comes with MENMON support. This firmware/BIOS can be used for bootstrapping operating systems (from disk, Flash or network), for hardware testing, or for debugging applications without running any operating system.

The A15 single-board computer is partly compatible with the MVME2100 board by Motorola.



CPU SpecPowerPC®
• MPC8245
• 400 MHz
• Double precision FPU
• L1 Cache integrated in MPC8245
MemoryUp to 512 MB SDRAM system memory
• One 144-pin SO-DIMM slot for SDRAM modules
• 133 MHz memory bus frequency
2 MB Boot Flash
32 MB application Flash (optional)
• 64-bit data bus
Serial EEPROM 4 kbits for factory settings
• Two 10/100Base-T Ethernet channels
• RJ45 connectors with two LEDs at front panel
StorageCompactFlash® card interface
• Via onboard IDE
• Type I
• True IDE

Parallel IDE (PATA)
• One port for local CompactFlash®
• One port for local hard-disk drive
• Drive can be connected via ribbon cable or mounted directly on the CPU board using MEN adapter kit
• Only one VMEbus slot needed even with hard disk
• IDE port also available for rear I/O, alternatively to onboard connector
• One USB 1.1 port
• Accessible via I/O connector J2
• OHCI implementation
• Data rates up to 12 Mbit/s
• External PHY
SerialOne RS232 UART (COM1)
• RJ45 connector at front panel
• Data rates up to 115.2 kbit/s
• 16-byte transmit/receive buffer
• Handshake lines: CTS, RTS; DCD, DSR, DTR
• 16550 compliant

• Accessible via I/O connector
• Physical interface at front panel or using SA-Adapter via 10-pin ribbon cable on I/O connector, depending on board version
• RS232..RS485, isolated or not: for free use in system (e.g., cable to front)
• Data rates up to 115.2 kbit/s
• 16-byte transmit/receive buffer
• Handshake lines: full support; lines depend on SA-Adapters
• 16550 compliant

• Accessible via I/O connector
• Data rates up to 115.2 kbit/s
• 16-byte transmit/receive buffer
• Handshake lines: none
• 16550 compliant
Front I/OTwo Ethernet (RJ45)
COM1 (RJ45)
COM2/COM3/COM4 (optional, instead of PMC modules, or in second front-panel slot)
PMC 0 and 1
Rear I/OPMC 0
OtherPS/2 keyboard/mouse
• Accessible via I/O connector
• Requires external PHY
CommonSerial real-time clock with integrated 56-byte NVRAM
Serial hardware watchdog in supervisory circuit
Temperature sensor
Hex switch for user settings
User LEDs (integrated into COM1 connector)
Reset button in ejector handle
Abort button via I/O connector
JTAG/BDM connector


ExpansionTwo PMC slots
• Compliant with PMC standard IEEE 1386.1
• Up to 64-bit/64-MHz, 3.3V V(I/O)
• PMC I/O module (PIM) support through J4 (slot 0)

• Compliant with VME64 Specification
• Slot-1 function with auto-detection
• Master: D08(EO):D16:D32:D64:A16:A24:A32:ADO:BLT:RMW
• Slave: D08(EO):D16:D32:D64:A16:A24:A32:BLT:RMW
• 1 MB shared fast SRAM
• Mailbox functionality
• Interrupter D08(O):I(7-1):ROAK
• Interrupt handler D08(O):IH(7-1)
• Single level 3 fair requester
• Single level 3 arbiter
• Bus timer
• Location Monitor
• Performance:
• • Coupled read/write D32 non-block transfer rate 6.5 MB/s
• • DMA read/write D32 BLT transfer rate 12.1 MB/s
• • DMA read/write D64 MBLT transfer rate 25 MB/s
ElectricalSupply voltage/power consumption:
• +5 V (-3%/+5%), 1.3 A typ.
• ±12 V (-5%/+5%), only used for mezzanines, tbd
MechanicalDimensions: standard double Eurocard, 233.3 mm x 160 mm
Conformal CoatingConformal coating on request
TemperatureTemperature range (operation):
• -25..+85°C (screened)
• Airflow: min. 10 m³/h
Temperature range (storage): -40..+85°C
HumidityRelative humidity (operation): max. 95% non-condensing
Relative humidity (storage): max. 95% non-condensing
WeightWeight (without mezzanines and accessories): 330 g
Altitude-300 m to +3000 m
Vibration(sinusoidal): 2 g, 10..150 Hz
ShockShock: 15 g, 11 ms
Bump: 10 g, 16 ms
MTBF126 000 h @ 40°C (derived from MIL-HDBK-217F)
Safety/CertificationPCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
EMCTested according to EN 55022 (radio disturbance), IEC1000-4-2 (ESD) and IEC1000-4-4 (burst)
Warranty2 Years

Ordering Details

A15C, MPC8245, 400MHz, 512MB SDRAM, 2MB Flash, 2 PMC slots, -25..+85°C screened
A15B, MPC8245, 400MHz, 256 MB SDRAM, 2MB Flash, 3 M-Module slots, 0..+60°C

A21B, Freescale™ QorIQ™ single-core P1013, 800 MHz, 1 GB DDR3 ECC SDRAM, 32 MB Flash, 3 M-Module slots, -40 to +85°C screened

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