| Field Name | Bits | Type | Reset Value | Description |
|---|
| Reserved | 31:18 | roRead-only | 0x0 | |
| cfg_disable_pcie_dma_reg_access | 17 | rwNormal read/write | 0x0 | Determines whether DMA Registers are accessible from PCI Express |
| cfg_disable_pcie_bridge_reg_access | 16 | rwNormal read/write | 0x1 | Determines whether Bridge Registers are accessible from PCI Express |
| Reserved | 15:3 | roRead-only | 0x0 | |
| cfg_dma_reg_bar | 2:0 | rwNormal read/write | 0x0 | Determines which PCI Express Base Address Region (BAR) is used to access DMA and Bridge Registers from PCI Express. If a received PCI Express read/write requests BAR hit information is equal to cfg_dma_reg_bar, then the transaction is terminated by the internal DMA/Bridge Register implementation, otherwise the transaction is forwarded to the AXI Master Interface. cfg_dma_reg_bar is only for received PCI Express read and write requests and has no impact on received AXI Slave Interface requests. |