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PCI interface and backplane of NGC


NGC Backplane
General purpose Board features CompactPCI connector Ground and Power planes Bending of the backplane di Different backplane size

Leander Mehrgan


Backplane
General purpose
Designed to achieve requirements and specifications for: achie Excellent power distribution High speed differential pairs Mechanical specification

Board features CompactPCI connector Ground and Power planes Bending of the backplane Different backplane size

Leander Mehrgan


Backplane
General purpose Board features
Totally 10 layers, 6 ground and power planes and 4 signal layers Point to point connection of the differential high speed link Provides system clock of 100 MHz, which is distributed to all slots by using separate buffer Power up reset component used for global reset for all slots Bypass capacitors for supply voltages

CompactPCI connector Ground and Power planes Bending of the backplane Different backplane size

High speed connector

Digital signals

Analog signals

Analog signals g

System clock
Leander Mehrgan

Power connector


Backplane
General purpose Board features CompactPCI connector
Industrial standard connector, which will on long term displace the VME connectors. More f lexibility due higher number of pins Boards can be plug on both sides of the backplane Special connectors (from ERNI) for the high speed differential link Shielded 2mm pitch, EMI/RFI protection.

Ground and Power planes Bending of the backplane Different backplane size

Leander Mehrgan


Backplane
General purpose Board features CompactPCI connector Ground and Power planes
Divided in digital ground, analog ground and, high speed link area One power entry connector for easy exchange of the backplane board

Bending of the backplane Different backplane size
Analog ground

Digital ground

Analog ground

Power connector
Leander Mehrgan


Backplane
General purpose Board features CompactPCI connector Ground and Power planes Bending of the backplane di
To avoid bending the NGC backplanes are equipped with stiffeners, which reduce bending of the backplane while inserting and extracting of the boards cards to a minimum.

Different backplane size

Leander Mehrgan


Backplane
General purpose Board features CompactPCI connector Ground and Power planes Bending of the backplane di Different backplane size
For more f lexibility two different backplane size created
a) Two slot version b) Six slot version

They differ only in the number of slots

Leander Mehrgan


PCI interface interface
PCI module is the interface between the frontend electronics and the number cruncher (LinuxPC).

Leander Mehrgan


PCI interface interface
PCI module is the interface between the frontend electronics and the number cruncher (LinuxPC). With the following features: ll
64 bit data bus with 33 MHz clock

PCI controller done by the XILINX FPGA (IP core).
Full/duplex fiber link (2.5 Gb/s) USB interface

LLCU


PCI interface interface
PCI module is the interface between the frontend electronics and the number cruncher (LinuxPC). With the following features: ll 64 bit data bus with 33 MHz clock
Results a bandwidth of 256 MB/s. It matches to the data rate of fiber link (2.5 Gb/s). Optional bus clock of 66 MHz (512 MB/s).

PCI controller done by the XILINX FPGA (IP core). Full/duplex fiber link (2.5 Gb/s) USB interface

Leander Mehrgan


PCI interface interface
PCI module is the interface between the frontend electronics and the number cruncher (LinuxPC). With the following features: ll 64 bit data bus with 33 MHz clock PCI controller done by the XILINX FPGA (IP core).
IP core (intellectual property core) is provided by Xilinx doing all the timing needed for the PCI interface. Compliant with PCI v2.3 specification (3.3 V). Local bus interface for user application PCI master/slave interface

Full/duplex fiber link (2.5 Gb/s) USB interface

Leander Mehrgan


PCI interface interface
PCI module is the interface between the frontend electronics and the number cruncher (LinuxPC). With the following features: ll 64 bit data bus with 33 MHz clock PCI controller done by the XILINX FPGA (IP core). Full/duplex fiber link (2.5 Gb/s)
fiber optic transceiver for RocketIO of the XILINX

data and commands time multiplexed transferring USB interface

Leander Mehrgan


PCI interface interface
PCI module is the interface between the frontend electronics and the number cruncher (LinuxPC). With the following features: ll 64 bit data bus with 33 MHz clock PCI controller done by the XILINX FPGA (IP core). Full/duplex fiber link (2.5 Gb/s) USB interface
Provides possibility to operate the controller from a portable PC For diagnostic and maintenance purpose


Thank you

Leander Mehrgan