The PCI7510 CardBus controller is a four-function, 33-MHz PCI device compliant with the PCI Local Bus Specification. Function 0 provides a PC Card socket controller compliant with the latest PC Card Standards. Function 1 provides a dedicated socket for Smart Card. Function 2 of the PCI7510 device is an integrated IEEE 1394 OHCI host controller and two-port PHY. Function 3 is the interface to load the PCI7510 program RAM with firmware. The PCI7510 device provides features that make it the best choice for bridging between the PCI bus and PC Cards, and supports any combination of 16-bit and CardBus cards powered at 5 V or 3.3 V as required.