82801FB Datasheet, PDF (96/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

System Clock Domains
Figure 4-1. Desktop Conceptual System Clock Diagram
Intel^®
ICH6
32 kHz
XTAL
33 MHz
14.31818 MHz
48.000 MHz
Clock
Gen.
PCI Clocks
(33 MHz)
14.31818 MHz
100 MHz
Diff. Pair
SATA 100 MHz Diff. Pair
DMI 100 MHz Diff. Pair
1 to 6
Differential
Clock Fan
Out Device
48.000 MHz
PCI Express
100 MHz
Diff. Pairs
50 MHz
LAN Connect
12.288 MHz
24 MHz
AC ’97 Codec(s)
High Definition Audio Codec(s)
SUSCLK# (32 kHz)
Figure 4-2. Mobile Conceptual Clock Diagram
Intel^®
ICH6-M
32 kHz
XTAL
33 MHz
14.31818 MHz
48.000 MHz
STP_CPU#
STP_PCI#
Clock
Gen.
PCI Clocks
(33 MHz)
14.31818 MHz
48 MHz
100 MHz Diff. Pair
SATA 100 MHz Diff. Pair
DMI 100 MHz Diff. Pair
1 to 6
Differential
Clock Fan
Out Device
PCI Express
100 MHz
Diff. Pairs
50 MHz
LAN Connect
12.288 MHz
24 MHz
AC ’97 Codec(s)
Intel^® HD Audio Codec(s)
SUSCLK# (32 kHz)
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Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet