PC8374L Datasheet | National Semiconductor

Description The National Semiconductor PC8374L Advanced I/O product is a member of the PC837x Super I/O family. All PC837x devices are highly integrated and are pin and software patible, thus providing drop-in interchangeability and enabling a variety of assembly options using only a single motherboard and BIOS. PC8374L integration allows for a smaller system board size and saves on total system cost. The PC8374L includes legacy Super I/O functions, system glue functions, health monitoring and control, monly used functions such as GPIO, and ACPI-pliant Power Management support. The PC8374L integrates miscellaneous analog and digital system glue functions to reduce the number of discrete ponents required. The host municates with the functions integrated in the PC8374L device through an LPC Bus Interface. The PC8374L extended wake-up support plements the ACPI controller in the chipset. The System Wake-Up Control (SWC) module, powered by VSB3, supports a flexible wakeup mechanism. The PC8374L supports both I/O and memory mapping of module registers and enables building legacy-free systems. Outstanding Features - - - - - - - - - Sensor Path interface to LMxx sensor devices for system health support Fan monitor and control Heceta6-patible register set, accessible via the LPC interface and SMBus Glue functions to plement the South Bridge functionality VSB3-powered Power Management with 19 wake-up sources Controls three LED indicators 16 GPIO ports with a variety of wake-up options I/O-mapped and memory-mapped registers Legacy modules: Parallel Port, Floppy Disk Controller (FDC), two Serial Ports, Slow Infra Red Port and a Keyboard and Mouse Controller (KBC) LPC interface, based on Intel’s LPC Interface Specification Revision 1.1, August 2002 PC01 Revision 1.0 and Advanced Configuration and Power Interface (ACPI) Specification Revision 2.0 pliant 128-pin PQFP package - - - Block Diagram LPC Bus South Bridge Power Management Serial Interfaces Parallel Port Interfaces...