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A21B - Embedded Single Board Computer, QorIQ P1xxx, M-Modules

6U VME64

The A21B is a PowerPC based embedded computer for industrial automation. The SBC features an NXP single-core P1013 or dual-core P1022 QorIQ processor and M-Module mezzanine slots.

  • A21B Product ImageA21B 6U VMEbus QorIQ P1013/P1022 CPU (M-Modules)
  • A21B Product ImageA21B configuration example with a mounted M-Module
  • A21B Product Image
  • A21B Product Image

Main Features

  • NXP PowerPC QorIQ P1013, 800 MHz
  • Up to dual-core P1022, 1.067 GHz
  • 64-bit VMEbus master and slave
  • Up to 2 GB DDR3 DRAM soldered, ECC
  • Up to 64 MB Flash and 128 KB FRAM
  • microSD card and mSATA slot
  • 2 Gb Ethernet, 1 COM, additional I/O options
  • 3 M-Module slots
  • U-Boot Universal Boot Loader
  • -40 °C to +85 °C
A21B Product Image

Technical Data

The following CPU types are supported:
  • NXP QorIQ P1022, dual core, 600 MHz
  • NXP QorIQ P1022, dual core, 800 MHz
  • NXP QorIQ P1022, dual core, 1.067 GHz
  • NXP QorIQ P1013, single core, 600 MHz
  • NXP QorIQ P1013, single core, 800 MHz
  • NXP QorIQ P1013, single core, 1.067 GHz
  • System RAM
    • Soldered DDR3 with ECC support
    • 1 GB or 2 GB
  • Boot/Program Flash
    • 32 MB or 64 MB
  • FRAM, non-volatile
    • 0 KB or 128 KB
Mass Storage
The following mass storage devices can be assembled:
  • One microSD card
  • One mSATA disk
  • Option: One in-system SATA hard-disk drive
Front Interfaces
  • Ethernet
    • Two RJ45 connectors, 1000BASE-T (1 Gbit/s)
    • Two link and activity LEDs per channel
  • UART (COM1)
    • One RJ45 connector, RS232 interface, up to 230.4 kbit/s
  • Reset button
  • Status LEDs
  • M-Module front I/O if populated
Onboard Interfaces
  • M-Modules
    • Three slots compliant with M-Module standard
    • Characteristics: A08, A24, D16, D32, INTA, INTC, TRIGI, TRIGO
  • SATA
    • Option: One channel, SATA Revision 2.x (3 Gbit/s)
  • Various I/O possible using onboard mezzanine card
    • Partly fixed set of interfaces, plus 16 pins for custom I/O
    • One USB 2.0 port, EHCI implementation
    • Additional UART COM interface
    • Display interface
    • Custom I/O functions can be implemented as FPGA IP cores (16 pins usable)
    • Occupies the space of M-Module slot 3
    • Please note that the custom I/O mezzanine card is always completely customized, including front I/O, no standard cards are available.
Rear Interfaces
  • Signals from M-Modules 0, 1 and 2
Supervision and Control
  • Real-time clock
    • Buffered by a supercapacitor, or
    • Buffered by a battery using an onboard battery holder (may be in mechanical conflict with M-Module slot 0)
  • Watchdog
  • Voltage monitor and temperature sensor
Backplane Standard
  • VMEbus, 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
  • DMA
  • 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
Electrical Specifications
  • Supply voltages
    • +5 V (-3%/+5%)
    • +3.3 V (-3%/+5%)
    • ±12 V (-5%/+5%), only provided for mezzanines that need 12 V
  • Power consumption
    • +5 V: 1.3 A typ.
    • +3.3 V: 1 A typ.
Mechanical Specifications
  • Dimensions: 6U, 4 HP
  • Weight (without mezzanines): 428 g
Environmental Specifications
  • Temperature range (operation):
    • -40..+85°C
    • Airflow: min. 1.0 m/s
  • Temperature range (storage): -40..+85°C
  • Relative humidity (operation): max. 95% non-condensing
  • Relative humidity (storage): max. 95% non-condensing
  • Altitude: -300 m to +3000 m
  • Shock: 50 m/s², 30 ms (EN 61373)
  • Vibration (function): 1 m/s², 5 Hz - 150 Hz (EN 61373)
  • Vibration (lifetime): 7.9 m/s², 5 Hz - 150 Hz (EN 61373)
  • 346 417 h @ 40°C according to IEC/TR 62380 (RDF 2000) (model 01A021B00)
Flammability (PCBs)
  • UL 94 V-0
  • EN 55022 (radio disturbance)
  • IEC 61000-4-2 (ESD)
  • IEC 61000-4-3 (electromagnetic field immunity)
  • IEC 61000-4-4 (burst)
  • IEC 61000-4-5 (surge)
  • IEC 61000-4-6 (conducted disturbances)
Software Support
  • Linux
  • VxWorks
  • See also Application Note Recommendations for a Robust Software Setup
  • For more information on supported operating system versions and drivers see Software.
BIOS/Boot Loader
U-Boot Universal Boot Loader

Ordering Information

Standard A21B Models

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

Miscellaneous Accessories

25 mounting screw sets to fix M-Modules on carrier boards (3 different screw types, 50 pieces each)

Related Hardware
A21C - Embedded Single Board Computer, QorIQ P1xxx, PMC/XMC

A21C, Freescale QorIQ single-core P1013, 800 MHz, 1 GB DDR3 ECC SDRAM, 32 MB Flash, 2 PMC/XMC slots, -40 to +85°C screened

Mass Storage

MicroSD card, 4 GB, -40°C to +85°C

Systems & Card Cages

MEN delivers turn-key systems completely installed (hardware, operating system, accessories), wired and tested. Different rack sizes, power supplies and backplanes on request.
For details please contact your local sales representative.



General Linux BSP for A21B and A21C


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


VxWorks 6.8 and 6.9 BSP (MEN) for A21B and A21C, SMP

This product uses the U-Boot bootloader available from DENX together with board-specific additions from MEN.

U-Boot Bootloader (DENX/MEN) for A21B and A21C

Application Examples

Nuclear Reactor Control

The computing heart in this nuclear reactor control application is a COTS VMEbus single-board computer in double Eurocard format.

Shipboard Command Desk

The single board computer inside the CompactPCI system is based on Intel Core 2 Duo architecture with two 64-bit processors and state-of-the-art PC interfaces.

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