IEI Technology WAFER-6820, Руководство пользователя

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IDE Primary/Secondary Master/Slave PIO
The four IDE PIO (Programmed Input/Output) fields let you set a PIO mode
(0-4) for each of the four IDE devices that the onboard IDE interface
supports. Modes 0 through 4 provide successively increased performance.
In Auto mode, the system automatically determines the best mode for each
device.
The choice: Auto, Mode 0, Mode 1, Mode 2, Mode 3, Mode 4.
IDE Primary/Secondary Master/Slave UDMA
Ultra DMA-33/66 implementation is possible only if your IDE hard drive
supports it and the operating environment includes a DMA driver (Windows
95 OSR2 or a third-party IDE bus master driver). If your hard drive and your
system software both support Ultra DMA-33/66, select Auto to enable BIOS
support.
The Choice: Auto, Disabled.
OnChip USB
Select Enabled if your system contains a Universal Serial Bus (USB)
controller and you have USB peripherals.
The Choice: Enabled, Disabled.
USB Keyboard Support
Select Enabled if your system contains a Universal Serial Bus (USB)
controller and you have a USB keyboard.
The Choice: Enabled, Disabled.