1. PCI Express Base Specification Rev 2.1. PCI-SIG, 2009.
2. Universal Serial Bus 3.0 Specification Rev 1.0, 2008.
3. Serial ATA: High Speed Serialized AT Attachment, Rev 1.0a, 2003
4. PHY Interface of PCI Express™ architecture Rev 2.0, 2007.
5. DesignWare Cores PCIe1 PHY For SMIC 130-nm G (Wirebond), Synopsys, 2007.