Acpi Cardbus Controller

The OZ6812 is an ACPI and PC98/99 logo certified, high performance, single slot PC Card controller with a synchronous 32-bit bus master/target PCI Interface This PC Card to PCI bridge host controller is compliant with the 1998 PC Card Standard. This standard incorporates the new 32-bit CardBus while retaining the 16-bit PC Card specification as defined by PCMCIA release 2.1. CardBus is intended to support temporal add-in functions on PC Cards, such as Memory cards, Network Interfaces FAX/Modems and other Wireless Communication cards, etc. The high performance and capability of the CardBus Interface will enable the development of many new functions and applications. The OZ6812 CardBus controller is compliant with the latest ACPI-PCI Bus Power Management Interface Specification. It supports all four power states and the PME# function for maximum power savings and ACPI compliance. The device also provides a power-down mode to allow host software to reduce power consumption further by stopping internal Clock Distribution as well as the PC Card socket Clock In addition, an advanced CMOS process is utilized to minimize system power consumption. The OZ6812 single PCMCIA socket supports 3.3V/5V 8/16- bit PC Card R2 card or 32-bit CardBus R3 card. The R2 card support is compatible with the Intel 82365SL PCIC controller, and the R3 card support is fully compliant with the 1998 PC Card Standard CardBus specification. The OZ6812 is a stand alone device, which means that it does not require an additional Buffer chip for the PC Card socket Interface In addition, the OZ6812 supports dynamic PC Card hot insertion and removal, with auto configuration capabilities. The OZ6812 is fully compliant with the 33Mhz PCI Bus specification, V2.2. It supports a master device with internal CardBus direct data transfer. The OZ6812 implements a FIFO data Buffer architecture between the PCI bus and CardBus socket Interface to enhance data transfers to CardBus devices. The bi-directional FIFO Buffer (composed of 16 double words) permits the OZ6812 to accept data from a target bus (PCI or CardBus interface) while simultaneously transferring data. This architecture not only speeds up data transfers but also prevents system deadlocks. By Unkown