IBASE Technology SI-18 Series, User Manual

Page: 26 / 54

26
Memory Hole At 15M-16M
In order to improve performance, certain space in memory can be reserved for ISA
cards. This memory must be mapped into the memory space below 16 MB. The
choices are Enabled and Disabled .
System BIOS Cacheable
The setting of Enabled allows caching of the system BIOS ROM at F000h-FFFFFh,
resulting in better system performance. However, if any program writes to this
memory area, a system error may result.
PCI ROM Priority
In case of multiple Option ROMs (Legacy and EFI Compatible), specifies what PCI
Option ROM to launch.
PCI Latency Timer
Value to be programmed into PCI Latency Timer Register.
VGA Palette Snoop
Enables or Disables VGA Palette Registers Snooping.
PERR# Generation
Enables or Disables PCI Device to Generate PERR#.
SERR# Generation
Enables or Disables PCI Device to Generate SERR#.
Relaxed Ordering
Enables or Disables PCI Express Device Relaxed Ordering.
Extended Tag
If ENABLED allows Device to use 8-bit Tag field as a requester.
No Snoop
Enables or Disables PCI Express Device No Snoop option.
Maximum Payload
Set Maximum Payload of PCI Express Device or allow System BIOS to select the
value.