IEI Integration IMBA-XQ354 v1.10 - Manual (Page 42)

IMBA-XQ354 Motherboard
Page 22
 Enhanced Hardware Monitor
 Fan Speed Controller
 Single +5 V Power Supply
 Two 16C550 UARTs for serial port control
 One IEEE 1284 Parallel Port
 Keyboard Controller
 Watchdog Timer
 Serial IRQ Support
 Vbat & Vcch Support
 Single +5 V Power Supply
Some of the Super I/O features are described in more detail below:
2.7.1.1 LPC Interface
The LPC interface on the Super I/O complies with the Intel ® Low Pin Count Specification
Rev. 1.0. The LPC interface supports both LDRQ# and SERIRQ protocols as well as PCI
PME# interfaces.
2.7.1.2 16C550 UARTs
The 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 protocols
Another two chipsets connected to the LPC bus provided connectivity to another two serial
port connectors (COM3 and COM4).
2.7.1.3 Digital Input/Output
The input mode supports switch debouncing or programmable external IRQ routing. The
output mode supports two sets of programmable LED blinking periods.