Zynq UltraScale+ Devices Register Reference > Module Summary > PCIE_ATTRIB Module > ATTR_78 (PCIE_ATTRIB) Register
Register Name | ATTR_78 |
---|---|
Relative Address | 0x0000000138 |
Absolute Address | 0x00FD480138 (PCIE_ATTRIB) |
Width | 32 |
Type | rwNormal read/write |
Reset Value | 0x00000000 |
Description | ATTR_78 |
This register should only be written to during reset of the PCIe block
Field Name | Bits | Type | Reset Value | Description |
---|---|---|---|---|
attr_rbar_cap_control_encodedbar4 | 14:10 | rwNormal read/write | 0x0 | Initial value for the 5th RBAR Control "BAR Size" field (if any). Encoding is 0=1MB, 1=2MB,2=4MB,etc. This value must correspond to the size requested in the attribute BARx (where x is the value of RBAR_CAP_INDEX4). For instance, if RBAR_CAP_INDEX4=3, and BAR3 requests a 16MB aperture, then this attribute must be set to 4 (meaning 16MB). |
attr_rbar_cap_control_encodedbar3 | 9:5 | rwNormal read/write | 0x0 | Initial value for the 4th RBAR Control "BAR Size" field (if any). Encoding is 0=1MB, 1=2MB,2=4MB,etc. This value must correspond to the size requested in the attribute BARx (where x is the value of RBAR_CAP_INDEX3). For instance, if RBAR_CAP_INDEX3=3, and BAR3 requests a 16MB aperture, then this attribute must be set to 4 (meaning 16MB). |
attr_rbar_cap_control_encodedbar2 | 4:0 | rwNormal read/write | 0x0 | Initial value for the 3rd RBAR Control "BAR Size" field (if any). Encoding is 0=1MB, 1=2MB,2=4MB,etc. This value must correspond to the size requested in the attribute BARx (where x is the value of RBAR_CAP_INDEX2). For instance, if RBAR_CAP_INDEX2=3, and BAR3 requests a 16MB aperture, then this attribute must be set to 4 (meaning 16MB). |