Chapter 3 – BIOS Setup Menus
3-16
System Controller Submenu
The XVME-655 automatically detects if the board is in the system controller position
(the left-most slot of the VMEbus chassis). This condition controls whether system
resources will be provided by the XVME-655 or another VMEbus processor. System
resources are VMEbus Arbiter, BERR timeout, SYSCLK, and IACK daisy chain driver.
These resources must be provided by the module installed in the system controller slot.
You cannot change the field that reports the status of the XVME-655’s system resources.
Note
The BERR timeout is the VMEbus error time
PhoenixBIOS Setup–Copyright 1985-95 Phoenix Technologies Ltd.
VMEbus
System Controller
Item Specific Help
System Resources:
Disabled
If the line item you are
BERR Timeout:
[64µs]
viewing has specific help,
it will be listed here.
F1
Help
¯
Select Item
-/+
Change Values
F9
Setup Defaults
ESC
Exit
¨
Select Menu
Enter
Select
}
Sub-Menu
F10 Previous Values
Figure Chapter 3 -13. System Controller Submenu
Option
Description
System Resources
Enables or disables system resources. This field is not user configurable; it is
automatically detected by the board.
BERR Timeout
Sets the VMEbus error timeout. Choices are 16
m
s, 32
m
s, 64
m
s, 128
m
s, 256
m
s,
512
m
s, 1024
m
s, and Disabled. The default is 64
m
s.
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