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Motherboard Description SY-K7VTA PRO
15
level triggered interrupts channel by channel. The integrated DMA
controller supports type F DMA in addition to standard ISA DMA modes.
Compliant with the PCI2.2 specification, the VT83C686A 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.
1-9 I/O INTERFACE CONTROLLER
The motherboard uses the VT82C686B Super-I/O controller which
features:
Ø Supports 2 serial ports, IR port, parallel port, and floppy disk
controller functions
Ø Two UARTs for Complete Serial Ports
Even, odd, stick or no parity bit generation and detection
Programmable baud rate generator
High speed baud rate (230Kbps, 460Kbps) support
Independent transmit/receiver FIFOs
Modem Control
Plug and play with 96 base IO address and 12 IRQ options
Ø One dedicated IR port
Third serial port dedicated to IR function
IR function either through the two complete serial ports or the
third dedicated port
Infrared-IrDA (HPSIR) and ASK (Amplitude Shift Keyed) IR
Ø Multi-mode parallel port
Standard mode, ECP and EPP support
Plug and play with 192 base IO address, 12 IRQ and 4 DMA
options
Ø Floppy Disk Controller
16bytes of FIFO