P512 - Reflective Memory PMC (Product Discontinued)

The P512 offers Reflective Memory functionality, for example for redundant computer structures in safety-critical applications. Reflective memory is a memory bus technology from Encore Computer that allows simultaneous reads and writes to multiple memories. It can be used to share memory among multiple CPUs. The advantage of reflective memory is the possibility to set up deterministic real-time communication networks across computer systems and operating systems.

Each P512 module offers one LVDS channel. The modules can be interconnected in a fully connected mesh and support multi-mode up to two meters. Each computer in a system needs one PMC for each connection to another computer (2 computers: 1 PMC each, 3 computers: 2 PMCs each etc).

The module is equipped with 32 MB DDR2 DRAM.

The P512 is a PMC mezzanine card suitable for any PMC compliant host carrier board in any type of bus system, i.e. CPCI, VME or on any type of stand-alone SBC in telecommunication, industrial, medical, transportation or aerospace applications. It supports 32 bits/33 MHz. Appropriate PMC carrier cards in 3U, 6U and other formats are available from MEN or other manufacturers.

Features

  • 32-bit/33-MHz PMC
  • 1 LVDS channel
  • Usable in a fully connected mesh
  • Multi-mode up to 2 meters
  • 32 MB DDR2 SDRAM
  • -40 to +85°C with qualified components

Specifications

Reflective memory
  • 1 LVDS channel
  • Usable in fully connected mesh
  • Multi-mode up to 2 meters
  • Connection speed 230 MHz
    • PCI to LVDS TX write performance (burst): 28.52 MB/s
    • PCI to LVDS TX write performance (longword single): 15.89 MB/s
    • DMA from PCI to LVDS TX performance (burst): 20.81 MB/s
Memory
  • 32MB SDRAM memory
    • Soldered
    • DDR2
    • 132MHz memory bus frequency
    • FPGA-controlled
  • 2MB non-volatile Flash
    • For FPGA data
    • FPGA-controlled
  • Access to LVDS RX/TX memory
    • PCI to RX/TX memory write performance (burst): 107.43 MB/s
    • PCI to RX/TX memory read performance (burst): 99.16 MB/s
    • PCI to RX/TX memory write performance (longword): 15.89 MB/s
    • PCI to RX/TX memory read performance (longword): 5.37 MB/s
PMC Characteristics (PCI)
  • Compliant with PCI Specification 2.2
  • 32-bit/33-MHz, 3.3V V(I/O)
  • Target
Peripheral Connections
Via front panel on a shielded 50-pin HP D-Sub SCSI 2 receptacle connector
Electrical Specifications
Supply voltage/power consumption:
  • +5V (-3%/+5%), 109mA
  • +3.3V (-5%/+5%), 143mA
Mechanical Specifications
  • Dimensions: conforming to IEEE 1386.1
  • Weight: 78g
Environmental Specifications
  • Temperature range (operation):
    • -40..+85°C
    • Airflow: min. 1.0m/s
  • 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
  • Conformal coating on request
MTBF
1 434 674 h @ 40°C according to IEC/TR 62380 (RDF 2000)
Safety
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
EMC
Conforming to EN 55022 (radio disturbance), IEC 61000-4-2 (ESD) and IEC 61000-4-4 (burst)
Software Support
MDIS driver