PCIe to PCI Reversible Bridge Diodes Incorporated PCIe to PCI Reversible Bridge features one PCI Express port and one 32-bit / 66MHz PCI port with 3.3V and 5V signaling. This bridge can be configured for forward or reverse bridging operation and offers enhanced address decoding, four 128-byte FIFOs for delay transactions, and two 128-byte FIFOs for posted memory transactions. Diodes Incorporated PCIe to PCI Reversible Bridge has a 0°C to +85°C temperature range and comes in a 128-pin QFP package.