IDT 89EBPES24T3G2, Руководство пользователя

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IDT Description of the EB24T3G2 Eval Board
EB24T3G2 Eval Board Manual 1 - 2 January 21, 2008
Notes
Board Features
Hardware
‹
PES24T3G2 PCIe 3 port switch
– Three x8 ports, 24 PCIe lanes
– PCIe Base Specification Revision 2.0 compliant (Gen2 SerDes speeds of 5 GT/S)
– Up to 2048 byte maximum Payload Size
– Automatic lane reversal and polarity inversion supported on all lanes
– Automatic per port link width negotiation to x8, x4, x2, x1
– Load configuration from an optional serial EEPROM via SMBUS
‹ Upstream, Downstream Port
– One edge connector on the upstream port, to be plugged into a slot with at least x8 capable on a
host motherboard
– Two slot connectors on the downstream ports, for PCIe endpoint add-on cards to be plugged in.
These slot connectors are x8 mechanically but open-ended for card widths greater than x8
(e.g. x16)
‹
Numerous user selectable configurations set using onboard jumpers and DIP-switches
– Source of clock - host clock or onboard clock generator
– Two clock rates (100/125 MHz) from an onboard clock generator
– Boot mode selection
‹
SMBUS Slave Interface (4 pin header)
‹
SMBUS Master Interface connected to the Serial EEPROMs through I/O expander
‹
“Attention” button for each downstream port to initiate a hot swap event on each port
‹
Four 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 PES24T3G2 within host systems
running popular operating systems.
‹ Installation programs
– Operating Systems Supported: Windows2000, WindowsXP, Vista, Linux
‹ GUI based application for Windows and Linux
– Allows users to view and modify registers in the PES24T3G2
– Binary file generator for programming the serial EEPROMs attached to the SMBUS.
Other
‹
A metal bracket is provided to firmly hold in place two endpoints plugged into the EB24T3G2 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 EB24T3G2 board for clock outputs.
Revision History
January 21, 2008 : Initial publication of eval board manual.