PC87382 Datasheet | National Semiconductor

Description The PC87382, a member of the National Semiconductor LPC Super I/O family, is targeted for a wide range of portable applications. The PC87382 is PC2001 and ACPI pliant, and features an LPC-to-LPC Switch with hot plugability, Fast Infrared port (FIR, Ir DA 1.1 pliant), 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 pliant 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 System Block Diagram I/O Ports South Bridge LPC Bus Portable Platform Docking Station DCLKOUT Docking LPC Bus Embedded Controller Serial Interface Infrared Interface Docking SIO National Semiconductor and TRI-STATE are registered trademarks of National Semiconductor Corporation. All other brand or product names are trademarks or registered trademarks of their respective holders. ©2003 National Semiconductor Corporation .national. Features - LPC System Interface - 8-bit I/O cycles - CLKRUN support - Implements PCI mobile design guide remendation (PCI Mobile Design Guide 1.1, Dec. 18, 1998) - Eight General-Purpose I/O (GPIO) Ports - Support assert IRQ - Programmable drive type for each output...