IDT Description of the EB12N3 Eval Board Board Features
89EBPES12N3 Evaluation Board Manual 1 - 2 March 8, 2006
Notes
Board Features
Hardware
PES12N3 PCIe 3 port switch
– Three x4 ports, 12 PCIe lanes
– PCIe Base Specification Revision 1.0a compliant
– 48 Gbps aggregate switching capacity
– 128 to 2048 byte maximum payload size
– Static lane reversal and polarity inversion supported on all lanes
– Automatic per port link width negotiation to x4, x2, x1
– Can load configuration from serial EEPROM via SMBUS
x4 PCIe Connectors
– One edge connector on the upstream port, to be plugged into a x4 slot on a host motherboard
– Two slot connectors on the downstream ports, for PCIe endpoint add-on cards to be plugged in
Numerous user selectable configurations set using onboard jumpers and DIP-switches
– Source of clock - host clock or onboard clock generator
– multiple clock rates and spread spectrum settings
– Boot mode selection
SMBUS Slave Interface (4 pin header)
SMBUS Master Interface connected to two optional Serial EEPROMs through I/O expander
– Facilitates testing with two different settings of initialization data with a simple change of a jumper
– Only one EEPROM can be selectively connected to the SMBUS at a time
“Attention” button for each port to initiate a hot swap event on each port
6 pin connector for optional external power supply
Push button for Warm Reset
Several LEDs to display status, reset, power, “Attention”, etc.
One 10 pin JTAG connector (pitch 2.54 mm x 2.54 mm)
Software
There is no software or firmware executed on the board. However, useful software is provided along
with the Evaluation Board to facilitate configuration and evaluation of the PES12N3 within host systems
running popular operating systems.
Device Drivers
– Operating Systems Supported: Windows2000, WindowsXP, Linux
– Installation programs or scripts
GUI based application for Windows and Linux
– Allows users to view and modify registers in the PES12N3
– Binary file generator for programming the serial EEPROMs attached to the SMBUS
Other
A metal bracket is required to hold firmly in place the two endpoints plugged into the EB12N3 board.
An external power supply may be required under some conditions.
SMBUS cable may be required for certain evaluation exercises.
SMA connectors are provided on the EB12N3 board for specific test points.
