Dma Channels Of Isa Cards; Enhanced Ide - FIC VT-502 Manual

Overview
which you might have to change if that IRQ is already in use and cannot be
shared.
Both ISA and PCI add-on cards may need to use IRQs. System IRQs are
available to add-on cards installed on the ISA bus first; the remaining ones
can be used by cards installed on the PCI bus. There are two categories of
ISA add-on cards: so-called Legacy ISA cards, which need to be configured
manually and then installed in any available ISA slot; and Plug and Play
(PnP) ISA cards, which are configured automatically by the system. As a
result, when you install Legacy ISA cards, you have to carefully configure
the system to ensure that the installed cards do not conflict with each other
by having the same IRQ. With PnP cards, on the other hand, IRQs are
assigned automatically from the ones available in the system. In the case of
PCI add-on cards, the BIOS automatically assigns an IRQ card to the PCI slot
the card is installed in.

DMA Channels of ISA Cards

Some Legacy and PnP ISA add-on cards may also need to use a Direct
Memory Access (DMA) channel. DMA assignments for this mainboard are
handled in the same way as the IRQ assignment process outlined above. For
more information, please refer to Chapter 3 of this manual.

Enhanced IDE

This mainboard features an integrated Enhanced IDE controller that
provides convenient, high-speed connections with up to four IDE devices,
such as Hard Disk, CD-ROM and Tape Backup Drives. Enhanced IDE is an
upgrade of the original IDE specification and provides increased capabilities
and performance in a number of areas, including support for Hard Disk
Drives of over 1.2GB and faster data transfer rates utilizing the PIO Mode 4
timing scheme.
With the integrated IDE controller you can connect up to four IDE
peripheral devices to your system. All devices are categorized in the same
way that IDE Hard Disks were configured in the past, with one device set as
the Master device and the other as the Slave device. We recommend that
Hard Disk Drives use the Primary IDE connector and that CD-ROM drives
utilize the Secondary IDE connector for improved system performance.
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