Specifications

34 PCA-6004 User’s Manual
aperture is a portion of the PCI memory address range dedicated for
graphics memory address space. Host cycles that hit the aperture
range are forwarded to the AGP without any translation. The Choice:
4M, 8M, 16M, 32M, 65M, 128M, 256M.
3.5.8 Onchip USB
This should be enabled if your system has a USB installed on the
system board and you want to use it. Even when so equipped, if you
add a higher performance controller, you will need to disable this
feature. The choice: Enabled, Disabled.
3.5.9 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.
3.5.10 USB Mouse Support
Select Enabled if your system contains a Universal Serial Bus (USB)
controller and you have a USB mouse. The choice: Enabled, Disabled.
3.5.11 CPU to PCI Write Buffer
When this field is Enabled, writes from the CPU to the PCI bus are
buffered, to compensate for the speed differences between the CPU
and the PCI bus. When Disabled, the writes are not buffered and the
CPU must wait until the write is complete before starting another write
cycle. The choice: Enabled, Disabled.
3.5.12 PCI Dynamic Bursting
When Enabled, every write transaction goes to the write buffer.
Burstable transactions then burst on the PCI bus and nonburstable
transactions don’t. The choice: Enabled, Disabled
3.5.13 PCI Master 0 WS Write
When Enabled, writes to the PCI bus are executed with zero wait
states. The choice: Enabled, Disabled