Prefetchable Base Upper @0x28

This location contains the upper 32 bits of the Prefetchable Base Register. This register is enabled by programming the Root Complex BAR configuration register in the Local Management space.

Table 1. i_pcie_prefetch_base_upper
Bits SW Name Description Reset
31:0 R Prefetchable Base Register Upper [PBRU] This field can be read and written from the local management APB bus if 64-bit prefetchable memory is enabled in the Root Complex BAR configuration register, else it is hardwired to zero. Its value is not used within the Controller. 32'h0