FPGA flexibility enhances PMC
05 October 2009
MEN Micro now offer a 32bit/33MHz P506 Quad CAN Bus Interface PCI mezzanine card.
It provides four independent, galvanically-isolated controller area network interface channels on a single card. Each interface provides a programmable loop-back mode for self-test operation as well as signaling and interrupt capabilities for receiver and transmitter error states.
The P506's interfaces are executed via IP cores within an onboard FPGA. Corresponding line drivers are implemented on a specialised USM (Universal Submodule) module that plugs directly onto the PMC board. MEN Micro's USM concept enables updates to a board's functionality through the implementation of different IP cores with minimal development time.
The interfaces support CAN protocol 2.0A/B with standard or extended data frames from 0 to 8 bytes and a programmable data rate of up to 1Mbit/second per ISO 11898-1/2. The P506, which also provides support for remote frames under CAN Layer 2 as well as CANopen master and slave, is suitable for any PMC-compliant host carrier board in any type of bus system (such as cPCI, VME or any standalone SBC).
This PMC is designed for use in mobile and safety critical harsh environments as found in industrial control, telecommunications, medical engineering, avionics and other transportation applications. It offers long-term availability of at least 10 years and is qualified to perform in an extended temperature range of -40°C to +85°C at a maximum of 95% RH (non-condensing). Conformal coating is available on request for added protection against dust and humidity.
The unit is rated to withstand shock at 15g/11ms, bumps up to 10g/16ms and sinusoidal vibration of 1g/10Hz to 150Hz. EMC protection conforms to EN 55022 for radio disturbance, IEC1000-4-2 for electrostatic discharge (ESD) and IEC1000-4-4 for electrical fast transient/burst testing.
The FPGA controls the P506's 32MB of soldered SDRAM memory and 2MB of non-volatile Flash memory for FPGA data and the Nios firmware. Peripheral connections are provided via the front panel on a shielded 50pin HP D-Sub SCSI2 receptacle connector.
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