Methods and arrangements to interface memory are described. Many
embodiments comprise comparing a transaction or access from a source to
memory addresses associated with the source to determine whether an
address associated with the transaction is accessible by the source. Some
embodiments may comprise defining protected memory. Several embodiments
may comprise defining protected memory by, for example, determining a
configuration for memory. Such embodiments may comprise protecting a
memory location or limiting access to memory addresses associated with a
protected memory location. Some of these embodiments may comprise
accessing registers to define protected memory and verifying accesses to
a memory location according to the definition of protected memory.
Further embodiments may comprise generating an association between a
source of an access and a memory location and storing the association to
facilitate access to the memory location by the source.