Achronix ACE Version 5.0 User Manual
Page 89
Editors
Chapter 3. Concepts
PCIe Editor Overview Page Options
Option
Description
BAR0
BAR0 Type
Each BAR can be configured as Memory or I/O
BAR0 Width
Each BAR can be configured as 32-bit or 64-bit
BAR0 Size
The size of the BAR in bytes. A minimum of 4K bytes is recommended
BAR0 Prefetchable
This enables/disables prefetch of the BAR, and should only be enabled for 64-bit
BARs
BAR1
BAR1 Enabled
Enable use of BAR1
BAR1 Type
Each BAR can be configured as Memory or I/O
BAR1 Width
Each BAR can be configured as 32-bit or 64-bit
BAR1 Size
The size of the BAR in bytes. A minimum of 4K bytes is recommended
BAR1 Prefetchable
This enables/disables prefetch of the BAR, and should only be enabled for 64-bit
BARs
BAR2
BAR2 Enabled
Enable use of BAR2
BAR2 Type
Each BAR can be configured as Memory or I/O
BAR2 Width
Each BAR can be configured as 32-bit or 64-bit
BAR2 Size
The size of the BAR in bytes. A minimum of 4K bytes is recommended
BAR2 Prefetchable
This enables/disables prefetch of the BAR, and should only be enabled for 64-bit
BARs
Expansion ROM
Enable Expansion
ROM
The Expansion ROM BAR is used to store device specific initialization or boot
instructions that must execute during the boot process. Use of the Expansion
ROM Base Address is rare. If implemented a valid Expansion ROM structure
must be implemented at this BAR location or the system may fail to boot.
Expansion ROM
Size
The size of the expansion ROM in bytes.
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UG001 Rev. 5.0 - 5th December 2012