DS616 Datasheet, PDF (32/60 Pages) Xilinx, Inc – LogiCORE IP PLBV46 PCI Full

LogiCORE IP PLBV46 PCI Full Bridge (v1.04.a)
C_IPIFBAR_2=0xFE000000
C_IPIF_HIGHADDR_2=0xFFFFFFFF
C_IPIFBAR2PCIBAR_2=Don’t care
C_IPIF_SPACETYPE_2=1
C_IPIFBAR_3=0x00000000
C_IPIF_HIGHADDR_3=0x0000007F
C_IPIFBAR2PCIBAR_3=Don’t care
C_IPIF_SPACETYPE_3=1
Associated with each IPIF BAR for C_IPIFBAR_N for N=0 to 3 are four registers for the high-order bits to be
substituted when making the translation to PCI memory and /IO space. For the previous example, the following
registers are set.
Register for C_IPIFBAR_0 (IPIFBAR2PCIBAR_0 High-Order Bit Register):
Programmable register for 16 high-order bits. The data in the register is substituted for the 16 msb of the address
that is translated to PCI bus.
Register for C_IPIFBAR_1 (IPIFBAR2PCIBAR_1 High-Order Bit Register):
Programmable register for 19 high-order bits. The data in the register is substituted for the 19 msb of the address
that is translated to PCI bus.
Register for C_IPIFBAR_2 (IPIFBAR2PCIBAR_2 High-Order Bit Register):
Programmable register for 7 high-order bits. The data in the register is substituted for the 7 msb of the address that
is translated to PCI bus.
Register for C_IPIFBAR_3 (IPIFBAR2PCIBAR_3 High-Order Bit Register):
Programmable register for 25 high-order bits. The data in the register is substituted for the 25 msb of the address
that is translated to PCI bus.
The remaining low-order bits are set to zero when a read of these registers is performed.
Writing 0x56710000 to IPIFBAR2PCIBAR_0 High-Order Bit Register and then accessing the PLBV46 PCI Bridge
IPIFBAR_0 with address 0x12340ABC on the PLB bus would yield 0x56710ABC on the PCI bus.
Writing 0xFEDC0000 to IPIFBAR2PCIBAR_1 High-Order Bit Register and then accessing the PLBV46 PCI Bridge
IPIFBAR_1 with address 0xABCDF123 on the PLB bus would yield 0xFEDC1123 on the PCI bus.
Writing 0x40000000 to IPIFBAR2PCIBAR_2 High-Order Bit Register and then accessing the PLBV46 PCI Bridge
IPIFBAR_2 with address 0xFFFEDCBA on the PLB bus would yield 0x41FEDCBA on the PCI bus.
Writing 0x12345680 to IPIFBAR2PCIBAR_3 High-Order Bit Register and then accessing the PLBV46 PCI Bridge
IPIFBAR_3 with address 0x0000004A on the PLB bus would yield 0x123456CA on the PCI bus.
DS616 June 22, 2011
www.xilinx.com
32
Product Specification