82443BX Datasheet, PDF (114/132 Pages) Intel Corporation – Host Bridge/Controller

Functional Description
4.7
System Clocking
Figure 4-6 shows the clock architecture for a typical Intel^® 440BX AGPset system.
Figure 4-6. Typical Intel^® 440BX AGPset System Clocking
CK100
BXPCLKx
33 MHz
100/66#
CPU/HCLK
100/66MHz
BXHCLK
100/66MHz
PCLKx
33 MHz
Pentium^® II
Processor
GCLKOUT
133/66MHz
GCLKIN
82443BX
DCLK
100/66MHz
DCLKWR
CKBF
DCLK[15:0]
SDRAM
4.8
4.8.1
Power Management
This section focuses on the 82443BX power management features only. The PIIX4E datasheet
along with this section provide the complete system power management description.
Overview
Power Management Features Supported by the 82443BX
• Suspend Resume
• Clock Control
• SDRAM Power Down Mode
• SMRAM
• ACPI and PCI-PM
4-28
82443BX Host Bridge Datasheet