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VT82C586B
• Universal Serial Bus Controller
− USB v.1.0 and Intel Universal HCI v.1.1 compatible
− Eighteen level (doublewords) data FIFO with full scatter and gather capability
− Root hub and two function ports
− Integrated physical layer transceivers with over-current detection status on USB inputs
− Legacy keyboard and PS/2 mouse support
• Sophisticated PC97-Compatible Power Management
− Supports both ACPI (Advanced Configuration and Power Interface) and legacy (APM) power management
− ACPI v1.0 Compliant (all required features plus extensions for most efficient desktop power management)
− APM v1.2 Compliant
− Supports soft-off (suspend to disk) and power-on suspend with hardware automatic wake-up
− One idle timer, one peripheral timer and one general purpose timer, plus 24/32-bit ACPI compliant timer
− Dedicated input pin for external modem ring indicator for system wake-up
− Enhanced integrated real time clock (RTC) with date alarm, month alarm, and century field
− Normal, doze, sleep, suspend and conserve modes
− System event monitoring with two event classes
− Five multi-purpose I/O pins plus support for up to 16 general purpose input ports and 16 output ports
− I2C serial bus support for JEDEC-compatible DIMM identification and on-board-device power control
− Seven external event input ports with programmable SMI condition
− Primary and secondary interrupt differentiation for individual channels
− Clock throttling control
− Multiple internal and external SMI sources for flexible power management models
• Plug and Play Controller
− PCI interrupts steerable to any interrupt channel
− Three steerable interrupt channels for on-board plug and play devices
− Microsoft Windows 95TM and plug and play BIOS compliant
• Pin-compatible upgrade from VT82C586 and VT82C586A for existing designs
• Built-in Nand-tree pin scan test capability
• 0.5um mixed voltage, high speed and low power CMOS process
• Single chip 208 pin PQFP
Revision 1.0 May 13, 1997
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Features