PowerPC
Atmel
CPU -- Effective Address --> STORAGE SUBSYSTEM --> Real Address
Effective Address --> [SLB lookup] --> Virtual Address --> [Page Table lookup] --> Real Address
Effective Address = Effective Segment ID + Page + Byte (aka. Logical Address)
Virtual Address = Virtual Segment ID + Page + Byte
Real Address = address of a byte in real storage or an I/O device (aka. Physical Address)