IDT Description of the EB8T5A Eval Board
EB8T5A Eval Board Manual
1 - 2
July 23, 2009
Notes
Board Features
Hardware
PCIe 5 port switch
– PES8T5A — Five ports (one x4 port and four x1 ports), 8 PCIe lanes
– PES6T5 — Five ports (one x2 port and four x1 ports), 6 PCIe lanes
– PES5T5 — Five ports (five x1 ports), 5 PCIe lanes
– PCIe Base Specification Revision 1.1 compliant
– Integrates eight 2.5 Gbps embedded SerDes
– Up to 256 byte maximum Payload Size
– Automatic lane reversal and polarity inversion supported on all lanes
– Automatic per port link width negotiation to 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 x4 capable
mechanical slot connector on a host motherboard
– Four 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
– Two clock rates and spread spectrum settings
– Boot mode selection
Vaux Support
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 14-pin JTAG header
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 PES8T5A within host systems
running popular operating systems.
Installation programs
– Operating Systems Supported: Windows2000, WindowsXP, Linux
GUI based application for Windows and Linux
– Allows users to view and modify registers in the PES8T5A
– Binary file generator for programming the serial EEPROMs attached to the SMBUS.
Other
A metal bracket is required to firmly hold in place the four endpoints plugged into the EB8T5A
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 EB8T5A board for specific test points.
Summary of Contents for EB8T5A Eval Board
Page 4: ...IDT Table of Contents EB8T5A Eval Board Manual ii July 23 2009 Notes...
Page 6: ...IDT List of Tables EB8T5A Eval Board Manual iv July 23 2009 Notes...
Page 8: ...IDT List of Figures EB8T5A Eval Board Manual vi July 23 2009 Notes...
Page 12: ...IDT Description of the EB8T5A Eval Board EB8T5A Eval Board Manual 1 4 July 23 2009 Notes...
Page 30: ...IDT Software for the EB8T5A Eval Board EB8T5A Eval Board Manual 3 2 July 23 2009 Notes...
Page 31: ...Notes EB8T5A Eval Board Manual 4 1 July 23 2009 Chapter 4 Schematics Schematics...
