WPCN385L

www.DataSheet4U.com WPCN385L LPC-to-LPC Switch, Fast Infrared Port, Serial Port and GPIOs Product Brief December 2006 Revision 1.0 WPCN385L LPC-to-LPC Switch, Fast Infrared Port, Serial Port and GPIOs General Description The WPCN385L, a member of the Winbond LPC SuperI/O family, is targeted for a wide range of portable applications. The WPCN385L is PC2001 and ACPI compliant, and features an LPC-to-LPC Switch with hot plugability, a Fast Infrared port (FIR, IrDA 1.1 compliant), Serial Port and GeneralPurpose Input/Output (GPIO) support for a total of 18 ports. The WPCN385L enables glueless implementation of an LPC-to-LPC Switch between the motherboard LPC bus and the Docking Station, and supports hot insertion and hot removal. Outstanding Features ■ ■ Pin and software compatible with the Winbond 87382 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 Fast Infrared Port (FIR) Serial Port LPC bus interface, based on Intel’s LPC Interface Specification Revision 1.1, August 2002 (supports CLKRUN and LPCPD signals) PC2001 and ACPI Revision 3.0 compliant 18 GPIO ports, including 11 with IRQ assertion capability Two testability modes (XOR Tree and TRI-STATE® device pins). 5V tolerant and back-drive protected pins (except LPC bus pins) 48-pin LQFP package ■ ■ ■ ■ ■ ■ ■ ■ System Block Diagram I/O Ports South Bridge LPC Bus Po...