Specification Sheet

Processor Configuration Register Definitions and Address Ranges
30 Datasheet, Volume 2 of 2
Note: Processor Graphics does not apply to X-Series processor.
2.3 System Address Map
The processor supports 512 GB (39 bits) of addressable memory space and 64 KB+3 of
addressable I/O space.
This section focuses on how the memory space is partitioned and how the separate
memory regions are used. I/O address space has simpler mapping and is explained
towards the end of this chapter.
The processor supports a maximum of 32 GB of DRAM. No DRAM memory will be
accessible above 32 GB. DRAM capacity is limited by the number of address pins
available. There is no hardware lock to prevent more memory from being inserted than
is addressable.
Figure 2-1. Conceptual Platform PCI Configuration Diagram