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
100/66#
CPU/HCLK
Pentium® II
Processor
100/66MHz
BXHCLK
100/66MHz
CK100
BXPCLKx
33 MHz
PCLKx
33 MHz
GCLKOUT
133/66MHz
GCLKIN
DCLK
100/66MHz
DCLK[15:0]
82443BX
CKBF
SDRAM
DCLKWR
4.8
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.
4.8.1
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
ETC [ ETC ]
