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8.4.2 SMSC SIO1007 Super-IO Controller

The SMSC SIO1007 is PC 99 and ACPI 1.0 compliant Super I/O Controller. The SIO1007 implements the LPC

interface with the LPC PortSwitch interface. The LPC PortSwitch interface is a hot switchable external

docking LPC interface. It also features a full 16bit internally decoded address bus, a Serial IRQ interface

with PCI clock support, relocatable configuration ports and three DMA channel options. The part also

includes 16 GPIO pins.

The SIO1007 incorporates one complete 8-pin UART. In addition SIO1007 provides a second UART to

support a serial Infrared interface that complies with IrDA v1.2 (Fast IR) and several other popular IR

formats.

 Main Features

— One full function Serial port

— High Speed UART with Send/Receive 16-Byte FIFOs

— Support 230k and 460k Baud rates

— Programmable baud rate generator

— Modem control circuit

— IR communication controller

— LPC bus Host interface

— LPC PortSwitch interface

— Two IRQ input pins

— PC99a and ACPI 1.0 Compliant

— Intelligent Auto Power Management

— 16x GPIOs

Figure 25 – SMSC SIO1007 functional block diagram

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