The first generation of the PCIe specification is commonly referred to as Gen 1 (PCI Express 1.0). Two specifications covered this generation: PCIe 1.0 and PCIe 1.1. PCIe 1.1 is the updated specification and includes clarifications that were needed for PCIe 1.0a.
Diodes Incorporated offers a variety of PCIe Gen 1 solutions, including packet switches, signal switches, redrivers / repeaters, and timing solutions. Diodes Incorporated also offers a range of bridging solutions for interconnecting PCIe to PCI, PCI to PCIe, PCIe to PCI-X, PCIe to UART, and PCIe to USB 2.0 hub.