4 super i/o chipset, 1 super i/o lpc interface, 2 super i/o 16c550 uarts – IEI Integration IMBA-9454 v4.02 User Manual
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IMBA-9454G Motherboard
Page 21
Console redirection function support
PXE (Pre-boot Execution Environment) support
USB
booting
support
2.7.4 Super I/O chipset
The iTE IT8712F Super I/O chipset is connected to the ICH6 southbridge through the LPC
bus. The iTE IT8712F is an LPC interface-based Super I/O device that comes with
Environment Controller integration. Some of the features of the iTE IT8712F chipset are
listed below:
LPC
Interface
PC98/99/2001, ACPI and LANDesk Compliant
Enhanced
Hardware
Monitor
Fan Speed Controller
SmartGuardian
Controller
Single +5V Power Supply
Two 16C550 UARTs for serial port control
One IEEE 1284 Parallel Port
Floppy
Disk
Controller
Keyboard
Controller
Watchdog
Timer
Serial IRQ Support
Vbat & Vcch Support
Single +5V Power Supply
Some of the Super I/O features are described in more detail below:
2.7.4.1 Super I/O 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.
2.7.4.2 Super I/O 16C550 UARTs
The onboard Super I/O has two integrated 16C550 UARTs that can support the following: