PLX Technology PEX 8505, Hardware Reference Manual

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PEX 8505RDK Hardware Reference Manual v1.1
© 2007, PLX Technology, Inc. All rights reserved.
1
1. General Information
The PLX PEX 8505RDK is a Rapid Development Kit based on the PEX 8505, a 5-lane, 5-port PCI
Express switch. The PEX 8505RDK provides a complete hardware and software development platform to
facilitate getting designs up and running quickly, lowering risk and reducing time-to-market.
An RDK Port Expansion Kit is included, which is used to convert the PEX 8505RDK into a bench top
platform that supports the full 5-port/5-lane configuration. When mated to the RDK Port Expander, the
upstream port is connected to a PCI Express x1 Cable connector. The Expansion Kit includes a 1-meter
cable and adapter card, which allows the PEX 8505’s upstream port to connect to any standard PC. See
the RDK Port Expansion Kit Hardware Reference Manual for more details.
Figure 1-1. PEX 8505RDK Component Side View
PEX
8505
JTAG Header
Reference Clock Buffers
Reset Circuitry
3.3V-1V
Regulator
5V-3.3V DC/DC
converter
VTT Regulator
Manual PERST#
EEPROM
Socket
I2C
A1
U1
J1
J5
Main Board Power
Indicators
P1
Slots J1/J2/J3
Power Indicator
Lanes
0 1 2 3
4 5 6 7
Powered by J5
User Control DIP switch
U10
U11
U12
U13
SW6
U14
U2
JP3
JP4
JP1
U9
U8
SW1
SW2
JP2
JP5
Lanes
User Control DIP switch