8399 N/B Maintenance

￿System Management Bus Interface

￿Host interface for processor communications

￿Slave interface for external SMBus masters

￿Universal Serial Bus Controller

￿USB v2.0 and Enhanced Host Controller Interface (EHCI) v1.0 compatible

￿USB v1.1 and Universal Host Controller InterfaceSecretDocument(UHCI) v1.1 compatible

￿Eighteen level (double words) data FIFO with full s atter and gather capability Three root hubs and six function ports

￿Integrated physical layer transceMiTacvers with optional over-current detection status on USB inputs

￿Legacy keyboardConfidentialand PS/2 mouse support

￿Sophisticated PC2001-Compatible Mobile Power Management

￿Supports both ACPI (Advanced Configuration and Power Interface) and legacy (APM) power management

￿ACPI v1.0 Compliant

￿APM v1.2 Compliant

￿CPU clock throttling and clock stop control for complete ACPI C0 to C3 state support

￿PCI bus clock run, Power Management Enable (PME) control, and PCI/CPU clock generator stop control

￿Supports multiple system suspend types: power-on suspends with flexible CPU/PCI bus reset options,

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