PCI Express Overview - PLX Technology
PCI Express Overview - PLX Technology
PCI Express Overview - PLX Technology
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Device Configuration<br />
‣ Register Configuration via:<br />
• I 2 C – Two wire protocol<br />
defined by Philips<br />
• Out of band device<br />
configuration<br />
• EEPROM – Serial Load<br />
• Configures device prior to<br />
BIOS access<br />
• In Band – Memory<br />
mapped via <strong>PCI</strong>e link<br />
• In band device<br />
configuration by host<br />
‣ Hardware Strapping<br />
• Using Pull-up/Pull-down<br />
resistors<br />
Signal Strapping<br />
Switch<br />
I 2 C<br />
CSRs<br />
EEPROM<br />
<strong>PCI</strong>e<br />
Upstream Link<br />
Multiple Ways to Configure <strong>PLX</strong> Switches<br />
<strong>PLX</strong> <strong>PCI</strong>e Jan 2007 CUST 21
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