MSI MS-6551 User Manual page 60

Chapter 3
sub menu is preceded by a " "). The settings are: Auto (ESCD), Manual.
IRQ/DMA Resources
The items are adjustable only when Resources Controlled By is set to Manual.
Press <Enter> and you will enter the sub-menu of the items. IRQ Resources &
DMA Resources list IRQ 3/4/5/7/9/10/11/12/14/15 and DMA 0/1/3/5/6/7 for us-
ers to set each IRQ/DMA a type depending on the type of device using the
IRQ/DMA. Settings are:
PCI/ISA PnP
Legacy ISA
PCI/VGA Palette Snoop
When set to Enabled, multiple VGA devices operating on different buses can
handle data from the CPU on each set of palette registers on every video
device. Bit 5 of the command register in the PCI device configuration space is
the VGA Palette Snoop bit (0 is disabled). For example, if there are two VGA
devices in the computer (one PCI and one ISA) and the:
VGA Palette Snoop
Bit Setting
Disabled
Enabled
The setting must be set to Enabled if any ISA bus adapter in the system
requires VGA palette snooping.
For Plug & Play compatible devices designed for PCI
or ISA bus architecture.
For devices compliant with the PC AT bus
specification, requiring a specific interrupt.
Data read or written by the CPU is only directed to the PCI
VGA device's palette registers.
Data read or written by the CPU is directed to both the PCI
VGA device's palette registers and the ISA VGA device's pal-
ette registers, permitting the palette registers of both VGA
devices to be identical.
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Action