Intel 6 SERIES CHIPSET - DATASHEET 01-2011 Datasheet page 50

Introduction
Integrated Clock Controller
The PCH contains a Fully Integrated Clock Controller (ICC) generating various platform
clocks from a 25 MHz crystal source. The ICC contains up to eight PLLs and four Spread
Modulators for generating various clocks suited to the platform needs. The ICC supplies
up to ten 100 MHz PCI Express 2.0 Specification compliant clocks, one 100 MHz BCLK/
DMI to the processor, one 120 MHz for embedded DisplayPort on the processor, four
33 MHz clocks for SIO/EC/LPC/TPM devices and four Flex Clocks that can be configured
to various frequencies that include 14.318 MHz, 27 MHz, 33 MHz and 24/48 MHz for
use with SIO, EC, LPC, and discrete Graphics devices.
KT Function
These functions support redirection of keyboard, mouse, and text screen to a terminal
window on a remote console. The keyboard, mouse, and text redirection enables the
control of the client machine through the network without the need to be physically
near that machine. Text, mouse, and keyboard redirection allows the remote machine
to control and configure the client by entering BIOS setup. The KVM/SOL function
emulates a standard PCI serial port and redirects the data from the serial port to the
management console using LAN. KVM has additional requirements of internal graphics
and SOL may be used when KVM is not supported.
IDE-R Function
The IDE-R function is an IDE Redirection interface that provides client connection to
management console ATA/ATAPI devices. When booting from IDE-R, the IDE-R
interface will send the client's ATA/ATAPI command to the management console. The
management console will then provide a response command back to the client. A
remote machine can setup a diagnostic SW or OS installation image and direct the
client to boot from IDE-R. The IDE-R interface is the same as the IDE interface and is
compliant with ATA/ATAPI-6 specifications. IDE-R does not conflict with the usage of
PXE boot. The system can support both interfaces and continue to boot from the PXE as
with any other boot devices. The devices attached to the IDE-R channel are only visible
to software during management boot session. During normal boot session, the IDE-R
channel does not appear as a present device.
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Datasheet