PFx_BAR5_APERTURE_SIZE_1 (CPM4_PCIE0_ATTR) Register Description
Register Name | PFx_BAR5_APERTURE_SIZE_1 |
---|---|
Relative Address | 0x0000000510 |
Absolute Address | 0x00FCA50510 (CPM4_PCIE0_ATTR) |
Width | 32 |
Type | rwNormal read/write |
Reset Value | 0x00000000 |
Description | BAR5 Aperture: Specifies the aperture of BAR 5. For Endpoint, the valid encodings are: 00000 = 128bytes 00001 = 256bytes 00010 = 512bytes 00011 = 1 Kbytes+M417 00100 = 2 Kbytes 00101 = 4 Kbytes 00110 = 8 Kbytes 00111 = 16 Kbytes 01000 = 32 Kbytes 01001 = 64 Kbytes 01010 = 128 Kbytes 01011 = 256 Kbytes 01100 = 512 Kbytes 01101 = 1 Mbytes 01110 = 2 Mbytes 01111 = 4 Mbytes 10000 = 8 Mbytes 10001 = 16 Mbytes 10010 = 32 Mbytes 10011 = 64 Mbytes 10100 = 128 Mbytes 10101 = 256 Mbytes 10110 = 512 Mbytes 10111 = 1 Gbytes 11000 = 2 Gbytes For non-Endpoint (Type 1) Config Space, BAR 5 Aperture must be programmed to 0. |
This register should only be written to during reset of the PCIe block
PFx_BAR5_APERTURE_SIZE_1 (CPM4_PCIE0_ATTR) Register Bit-Field Summary
Field Name | Bits | Type | Reset Value | Description |
---|---|---|---|---|
attr | 4:0 | rwNormal read/write | 0x0 | BAR5 Aperture: Specifies the aperture of BAR 5. For Endpoint, the valid encodings are: 00000 = 128bytes 00001 = 256bytes 00010 = 512bytes 00011 = 1 Kbytes+M417 00100 = 2 Kbytes 00101 = 4 Kbytes 00110 = 8 Kbytes 00111 = 16 Kbytes 01000 = 32 Kbytes 01001 = 64 Kbytes 01010 = 128 Kbytes 01011 = 256 Kbytes 01100 = 512 Kbytes 01101 = 1 Mbytes 01110 = 2 Mbytes 01111 = 4 Mbytes 10000 = 8 Mbytes 10001 = 16 Mbytes 10010 = 32 Mbytes 10011 = 64 Mbytes 10100 = 128 Mbytes 10101 = 256 Mbytes 10110 = 512 Mbytes 10111 = 1 Gbytes 11000 = 2 Gbytes For non-Endpoint (Type 1) Config Space, BAR 5 Aperture must be programmed to 0. |