VT82C686B

Manufacturer Part NumberVT82C686B
ManufacturerETC-unknow
VT82C686B datasheet
 


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The VT82C686B also enhances the functionality of the standard ISA peripherals. The integrated interrupt controller supports both
edge and level triggered interrupts channel by channel. The integrated DMA controller supports type F DMA in addition to
standard ISA DMA modes. Compliant with the PCI-2.2 specification, the VT82C686B supports delayed transactions and remote
power management so that slower ISA peripherals do not block the traffic of the PCI bus. Special circuitry is built in to allow
concurrent operation without causing dead lock even in a PCI-to-PCI bridge environment. The chip also includes eight levels
(doublewords) of line buffers from the PCI bus to the ISA bus to further enhance overall system performance.
CPU / Cache
Sideband Signals:
Init / CPUreset
IRQ / NMI
SMI / StopClk
FERR / IGNNE
SLP# (Slot-1)
Boot ROM
Expansion
Cards
Figure 1. PC System Configuration Using the VT82C686B
Revision 1.71 June 9, 2000
CA
MA/Command
North Bridge
CD
MD
PCI
SMB
USB Ports 0-3
Keyboard / Mouse
MIDI / Game Ports
VT82C686A
Parallel Port
352 BGA
Serial Ports 1 and 2
Infrared Comm Port
RTC
IDE Primary and Secondary
Crystal
Floppy Disk Interface
AC97 Link
Hardware Monitor Inputs
GPIO, Power Control, Reset
ISA
-5-
VT82C686B
System Memory
DIMM Module ID
Expansion
Cards
Overview