PC87382

PC87382 LPC-to-LPC Switch for Docking Stations, with Fast Infrared Port, Serial Port and GPIOs December 2003 Revision 1.2 PC87382 LPC-to-LPC Switch for Docking Stations, with Fast Infrared Port, Serial Port and GPIOs General Description The PC87382, a member of the National Semiconductor LPC SuperI/O family, is targeted for a wide range of portable applications. The PC87382 is PC2001 and ACPI compliant, and features an LPC-to-LPC Switch with hot plugability, Fast Infrared port (FIR, IrDA 1.1 compliant), Serial Port, and General-Purpose Input/Output (GPIO) support for a total of eight ports. The PC87382 enables glueless implementation of an LPCto-LPC Switch between the motherboard LPC bus and the Docking Station, and supports hot insertion and hot removal. Outstanding Features q LPC-to-LPC Switch with hot plugability, enables LPC devices in the Docking Station to be connected to the Main LPC Bus, thus reducing the number of signals required through the Docking Station connector LPC bus interface, based on Intel’s LPC Interface Specification Revision 1.1, August 2002 (supports CLKRUN signal) Fast Infrared port PC2001 and ACPI Revision 2.0 compliant Serial IRQ support (15 options) Protection features, including GPIO lock and pin configuration lock Eight GPIO ports, including with “assert IRQ” capability XOR Tree and TRI-STATE device pins (or ICT) testability modes. 5V tolerant and back-drive protected pins (except LPC bus pins) 48-pin LQFP package q q q q q q q q q Syst...