VT82C686B

Manufacturer Part NumberVT82C686B
ManufacturerETC-unknow
VT82C686B datasheet
 


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Page 9/128:

Universal Serial Bus Controller

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Universal Serial Bus Controller

USB v.1.1 and Intel Universal HCI v.1.1 compatible
Eighteen level (doublewords) data FIFO with full scatter and gather capability
Root hub and four function ports
Integrated physical layer transceivers with optional over-current detection status on USB inputs
Legacy keyboard and PS/2 mouse support
System Management Bus Interface
Host interface for processor communications
Slave interface for external SMBus masters
Sophisticated PC99-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,
suspend to DRAM, and suspend to disk (soft-off), all with hardware automatic wake-up
Multiple suspend power plane controls and suspend status indicators
One idle timer, one peripheral timer and one general purpose timer, plus 24/32-bit ACPI compliant timer
Normal, doze, sleep, suspend and conserve modes
Global and local device power control
System event monitoring with two event classes
Primary and secondary interrupt differentiation for individual channels
Dedicated input pins for power and sleep buttons, external modem ring indicator, and notebook lid open/close for
system wake-up
Up to 12 general purpose input ports and 23 output ports
Multiple internal and external SMI sources for flexible power management models
One programmable chip select and one microcontroller chip select
Enhanced integrated real time clock (RTC) with date alarm, month alarm, and century field
Thermal alarm on either external or any combination of three internal temperature sensing circuits
Hot docking support
I/O pad leakage control
Plug and Play Controller
PCI interrupts steerable to any interrupt channel
Steerable interrupts for integrated peripheral controllers: USB, floppy, serial, parallel, audio, soundblaster, MIDI
Steerable DMA channels for integrated floppy, parallel, and soundblaster pro controllers
One additional steerable interrupt channel for on-board plug and play devices
Microsoft Windows 98
Integrated I/O APIC (Advanced Peripheral Interrupt Controller)
Built-in NAND-tree pin scan test capability
0.35um, 3.3V, low power CMOS process
Single chip 27x27 mm, 352 pin BGA
Revision 1.71 June 9, 2000
TM
TM
TM
, Windows NT
, Windows 95
and plug and play BIOS compliant
-3-
VT82C686B
Features