Dynamic Engineering has done the hard part for you with impedance controlled, PCI compliant routing, matched length IO, extended temperature bridge, high speed differentially routed Ethernet, local DC/DC power supply and more. Sometimes beauty is more than skin deep. With PCIBPMC ( PCI Bridge PMC ) adapter / carrier converter card all you have to do is install your PMC onto the adapter, and then plug into the PCI slot. PCIBPMC is a universal voltage 1/2 length PCI card. Suitable for 32 bit bus operation. The bridge operates in transparent mode to provide plug and play operation. The PMC slot can be programed with user jumpers to use 3.3 or 5V for VIO.
The PMC user IO connector Pn4 is routed to one of two connectors for access (DIN IDC or SCSI II). The signals corresponding to the PrPMC standard Ethernet and Serial lines can optionally be connected to the Ethernet and Serial port connectors at the top edge of the board. The signals are isolated with resistors to keep the routing short. The PMC front panel connector is mounted though the PCI mounting bracket.
For superior performance PCIBPMC has cooling cutouts for increased airflow to the PMC. If your application requires a fan you can order the
PCIBPMC-FANx to have a fan(s) mounted to your PCIBPMC. The forward position is #1.
The PCI bus is interconnected to the PMC via a 32 bit 66 MHz capable bridge. The bridge allows the PCI bus to operate with different parameters than the PMC card - for example the PCI bus can operate at 66 MHz and the PMC with 33 mhz. The buffering within the bridge will take care of the rate matching. The local side can also operate at 66 if the PMC supports it. PCIBPMC can control the M66EN signal via a dipswitch setting or the PMC can control the M66EN setting directly.
The voltage definitions are also buffered between the PCI and PMC buses. The PCI VIO automatically defines the reference levels for the primary side of the bridge. A shunt is used to control a MOSFET to select which voltage reference is used on the secondary side. A 5V PMC card can be used with a 3.3V PCI bus and vice-versa. The voltages can also be the same.
The bridge insures that multiple PCIBPMC cards can be installed onto the same PCI bus stub.
The PCI power rails [+12, -12, 3.3V, 5V and ground] are routed to the PMC using planes with more current capacity than spec for PCI/PMC. Each of the rails is bipassed on PCIBPMC with both bulk and high speed decoupling capacitors. The decoupling capacitors are located at the connector pins, bridge pins etc.
The individual pins on the JN4 (PN4) connector are accessible via SCSI or DIN. The routing is matched length from Pn4 to the connector pins. With the SCSI connector option we recommend using with our
SCSI cable and the
HDEterm68 breakout block for ease of debugging. To mate with the VME DIN connector;
DINterm64 is a 64 position terminal strip compatible with the PCIBPMC and the
DIN Ribbon Cable 64 is a 64 position ribbon cable that can be used to interconnect the carrier with the terminal strip.
The PMC JTAG connections are routed to an optional header strip suitable for use programming your FPGA. 3.3V, GND, TCK, TMS, TDI, TDO, TRST. Please let us know if you want the header installed by adding -JTAG to your ordered PN.
The power rails are measureed and LEDs illuminated if within tolerance. If the LEDs are out check your system power supply.
PCIBPMCX1 was the twin to this design with PCI-X bridge and differential routing to the rear connector. Contact us if you want a modified version of this design with matching rear IO [to the X1 version].