PD178004A_15 Datasheet, PDF (16/58 Pages) Renesas Technology Corp – PD178004A_15

µPD178004A, 178006A, 178016A, 178018A
4. MEMORY SPACE
Figure 4-1 shows the µPD178004A, 178006A, 178016A, and 178018A memory map.
Figure 4-1. Memory Map
FFFFH
FF00H
FEFFH
FEE0H
FEDFH
Special Function Registers
(SFR) 256 × 8 bits
General-Purpose
Registers
32 × 8 bits
FB00H
FAFFH
Data Memory
Space
FAE0H
FADFH
FAC0H
FABFH
Internal High-Speed
RAM
1 024 × 8 bits
Use Prohibited
Buffer RAM 32 × 8 bits
Use Prohibited
nnnnH + 1
nnnnH
Program Memory
Space
0000H
Internal ROM ^{Note 3}
FABFH
Use Prohibited
F800H
F7FFH
Internal Expanded RAM
2 048 × 8 bits
Note 1
F000H
EFFFH
Use Prohibited ^{Note 2}
nnnnH + 1
nnnnH
1000H
0FFFH
0800H
07FFH
0080H
007FH
0040H
003FH
0000H
Program Area
CALLF Entry Area
Program Area
CALLT Table Area
Vectored Table Area
Notes 1. Available only for µPD178016A and 178018A
2. The µPD178018A does not contain this use prohibited area.
3. The internal ROM capacity depends on the version (see the table below).
Corresponding Product
Name
µPD178004A
µPD178006A, 178016A
µPD178018A
Internal ROM Last Address
nnnnH
7FFFH
BFFFH
EFFFH
14