SMSC's New I/O Controller for PC Servers

Standard Microsystems told us this week about its new LPC47S45xI/O controller. The LPC47S45x is based on SMSC's Super I/O design and includes platform management features targeted at the PC server architecture. The LPC47S45x is designed to be compatible with server platforms using either Intel or ServerWorks system logic. The real time clock (RTC) embedded in the controller provides a primary or secondary timing source for the platform. Its X-Bus interfaces to as many as four external, 8-bit data bus devices and is capable of performing I/O cycles initiated by either the SMBus or the LPC interface. The LPC47S45x includes dual System Management Bus (SMBus) controllers. One is arranged as a master/slave controller and the other is set up as a slave only device used to access internal SMBus registers and the I/O devices on the X-Bus. The 3.3V LPC-compatible controller includes legacy I/O functionality such as an 8042-based keyboard controller, a floppy disk controller with enhanced digital data separator, serial and parallel ports, and infraRead support. The LPC47S45x also includes system control functionality such as parallel to serial IRQ conversion circuitry, an X-Bus interface for System Management Controller, general purpose I/O pins, and maskable hardware wake-up events. The LPC47S45x is packaged in a 128-pin quad flat pack (QFP) package and is priced at $8.25 in production quantities. Samples of the LPC47S45x are available immediately, as are a full suite of demonstration and development tools - documentation, evaluation boards and utility software, as well as world-class field application engineering support. If you're in the market for such things, you can check out the complete product data sheet .