2.3.3.2 PCIe BAR
Select one of the following Base Address Registers (BAR):
- BAR0
 - BAR1
 - BAR2
 - BAR3
 - BAR4
 - BAR5
 - BAR0/1
 - BAR2/3
 - BAR4/5
 
Bar Size is mapped to bits [5:0] of WindowsX_2, where X can be 0, 1, 2 or 3, as listed in the following table.
| BAR Size | Bit Settings | 
|---|---|
| BAR0, BAR0/1 | 0x01 | 
| BAR 1 | 0x02 | 
| BAR 2, BAR2/3 | 0x04 | 
| BAR 3 | 0x08 | 
| BAR 4, BAR4/5 | 0x10 | 
| BAR5 | 0x20 | 
