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Motherboard Description
interrupts and internal interrupts / DMA channels to any interrupt channel.
One additional steerable interrupt channel is provided to allow plug and
play and reconfigurability of on-board peripherals for Windows family
compliance.
The VT8233 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 VT8233 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.
1-10 I/O INTERFACE CONTROLLER
The motherboard uses the ITE 8705 LPC Super-I/O controller which
features:
Supports 2 serial ports, IR port, parallel port, and floppy disk
controller functions
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
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
SY-K7V DRAGON
15
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