Artesyn ATCA-7350 Installation and Use (September 2014) - Manual (Page 171)

Addressing
ATCA-7350 Installation and Use (6806800G59G) 171
9.4 Memory Map
The Intel® 5000P chipset supports 36 bits of memory address space. Internally Intel® 5000P
chipset carries 40 bits of address into various memory controller components. The processors
designed for Intel® 5000P chipset, support only 36 bits of memory addressing and 16 bits of
addressable I/O space. However internally the MCH supports 40 bits and several of the MCH
memory configuration registers require 40 bit address programming.
Refer to the Intel 5000P Data Sheet.
The MCH provides the capability to re-claim the physical memory overlapped by memory-
mapped I/O devices, BIOS, and I/O APICs that reside just below 4 GByte. This memory may be
re-mapped to physical memory at the address defined by the TOLM register. The detailed
memory system address map, please refer to Intel® 5000P/5000V/5000Z Chipset Memory
Controller Hub (MCH) Datasheet.