The term "CPU local map" refers to the 64K space that the CPU can directly - or naturally access through its instruction set with a 16-bit address.
We can see in the above figure that the registers and the other memory resources have dedicated address ranges. The above figure illustrates the local map for an MC9S08DZ60 part.
In the case of the HCS08 family, local memory maps may change from device to device, however, they do share a common characteristic. The common characteristic is that RAM, EEPROM and Register space boundaries may change from device to device but are always by default located in the first 16K region of the local map (from addresses 0x0000 to 0x3FFF) . The upper 48K region is devoted to hosting Flash memory (From address 0x4000 to 0xFFFF).
When paging mechanism is applied to extend the memory space, the 48K region is divided into three 16K regions. The middle region 16K region (from 0x8000 to 0xBFFF) is called the Flash page window, plays a very special role in paging mechanism.