Zilog Z8F0130 - Manual (Page 39)

eZ8
™
CPU Core
User Manual
UM012820-0810 Address Space
24
Individual products containing the eZ8 CPU support varying amounts of
Program Memory. Refer to the Zilog Product Specification that is specific
to your Z8 Encore! device for your product to determine the amount of
Program Memory available. Attempts to read or execute from unavailable
Program Memory addresses return
FFh . Attempts to write to unavailable
Program Memory addresses produce no effect.
Data Memory
In addition to the Register File and the Program Memory, the eZ8 CPU
also accesses a maximum of 64 KB (65,536 bytes) of Data Memory. The
Data Memory space provides data storage only. Op Code and operand
fetches cannot be executed out of this space. Access is obtained by the use
of the LDE and LDEI instructions. Valid addresses for the Data Memory
are from
0000h to FFFFh .
Individual products containing the eZ8 CPU support varying amounts of
Data Memory. Refer to the Zilog Product Specification specific to your
Z8 Encore! device for your product to determine the amount of Data
Memory available. Attempts to read unavailable Data Memory addresses
returns
FFh . Attempts to write to unavailable Data Memory addresses
produce no effect.
0008–0027 Interrupt vector.
0028–FFFF Program code and data.
Table 7. Program Memory Map Example (Continued)
Program Memory

Address (Hex) Description