PCIE-9452 PICMG 1.3 CPU CardPage 25 Keyboard Controller Watchdog Timer Serial IRQ Support Vbat & Vcch Support Single +5V Power SupplySome of the Super I/O features are described in more detail below:2.7.3.1 Super I/O LPC InterfaceThe LPC interface on the Super I/O complies with the Intel® Low Pin Count SpecificationRev. 1.0. The LPC interface supports both LDRQ# and SERIRQ protocols as well as PCIPME# interfaces.2.7.3.2 Super I/O 16C550 UARTsThe onboard Super I/O has two integrated 16C550 UARTs that can support the following: Two standard serial ports (COM1 and COM2) IrDa 1.0 and ASKIR protocolsAnother two chipsets connected to the LPC bus provided connectivity to another two serialport connectors (COM3 and COM4).2.7.3.3 Super I/O Enhanced Hardware MonitorThe Super I/O Enhanced Hardware Monitor monitors three thermal inputs, VBATinternally, and eight voltage monitor inputs. These hardware parameters are reported inthe BIOS and can be read from the BIOS Hardware Health Configuration menu.2.7.3.4 Super I/O Fan Speed ControllerThe Super I/O fan speed controller enables the system to monitor the speed of the fan.One of the pins on the fan connector is reserved for fan speed detection and interfaced tothe fan speed controller on the Super I/O. The fan speed is then reported in the BIOS.
