Visible to Intel only — GUID: sfo1410068083654
Ixiasoft
Visible to Intel only — GUID: sfo1410068083654
Ixiasoft
8.2.1.2. Arria 10 HPS L3 Address Space
The Arria 10 HPS L3 address space is 4 GB and applies to all L3 masters except the MPU subsystem.
The system interconnect noc_addr_remap_value, noc_addr_remap_set, and noc_addr_remap_clear registers, in the System Manager, determine if the address space starting at address 0x0 is mapped to the on-chip RAM (256 KB) or the SDRAM. SDRAM is mapped to address 0x0 on reset.
The L3 address space configurations contain the regions shown in the following table:
Description | Condition | Base Address | End Address | Size |
---|---|---|---|---|
SDRAM window (without on-chip RAM) | remap0 set, remap1 clear 9 | 0x00000000 | 0xBFFFFFFF | 3 GB |
On-chip RAM (low mapping) | remap0 set, remap1 set 9 | 0x00000000 | 0x0003FFFF | 256 KB |
SDRAM window (with on-chip RAM) | remap0 set, remap1 set 9 | 0x00040000 | 0xBFFFFFFF | 3145471 KB = 3 GB - 256 KB |
HPS-to-FPGA | Not visible to FPGA-to-HPS bridge. | 0xC0000000 | 0xFBFFFFFF | 960 MB |
System trace macrocell | Always visible to DMA and FPGA-to-HPS | 0xFC000000 | 0xFEFFFFFF | 48 KB |
Debug access port | Not visible to master peripherals. Always visible to other masters. | 0xFF000000 | 0xFF1FFFFF | 2 MB |
Lightweight HPS-to-FPGA | Not visible to master peripherals. Always visible to other masters. | 0xFF200000 | 0xFF3FFFFF | 2 MB |
Peripherals | Not visible to master peripherals. Always visible to other masters. | 0xFF800000 | 0xFFFDFFFF | 8064 KB |
On-chip RAM (high mapping) | Always visible | 0xFFE00000 | 0xFFFE3FFF | 256 KB |
Cache coherent memory accesses have the same view of memory as the MPU.