UPD784218 Datasheet, PDF (23/92 Pages) NEC – 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS

Figure 7-1. Memory Map of µPD784218, 784218Y
On execution of
LOCATION 0H instruction
FFFFFH
External memory^{Note 1}
(768 KB)
4 0 0 0 0H
3 F F F FH
Internal ROM
1 0 0 0 0H
(196,608 bytes)
0 F F F F H _{Special function registers (SFRs)}
0 F FDFH
0 F F D 0 H ^{Note 1}
0 FF 0 0H
(256 bytes)
0 FEF FH
Internal RAM
(12,800 bytes)
0CD0 0H
0CCF FH
Note 4
Internal ROM
(52,480 bytes)
0 0 0 0 0H
0 FEF FH
General-purpose
registers (128 bytes)
0 FE8 0H
0 FE 7 FH
FFEFFH
FFE8 0H
F FE 7 FH
0 F E 3 BH _{Macro service control word}
0 F E 0 6 H ^{area (54 bytes)}
Data area (512 bytes)
0FD0 0H
0 FCF FH
Program/data area
(12,288 bytes)
0CD0 0H
F F E 3 BH
FFE0 6H
FFD0 0H
FFCFFH
FCD0 0H
3 F F F FH
1 0 0 0 0H
Note 2
0CCF FH
Program/data area^{Note 3}
0 1 0 0 0H
0 0FFFH
CALLF entry
area (2 KB)
0 0 8 0 0H
0 0 7FFH
3 F F F FH
0 0 0 8 0H
0 0 0 7FH
CALLT table
0 0 0 4 0 H ^{area (64 bytes)}
0 0 0 3FH
Vector table area
0 0 0 0 0 H ^{(64 bytes)}
On execution of
LOCATION 0FH instruction
F F F F F H _{Special function registers (SFRs)}
FFFDFH
FFFD0H
Note 1
FFF 0 0H
(256 bytes)
FFEFFH
Internal RAM
(12,800 bytes)
FCD0 0H
FCCF FH
External memory^{Note 1}
(773,376 bytes)
4 0 0 0 0H
3 F F F FH
Internal ROM
(256 KB)
Note 4
0 0 0 0 0H
Notes 1. Accessed in external memory expansion mode.
2. This 13,056-byte area can be used as internal ROM only when the LOCATION 0FH instruction is executed.
3. On execution of LOCATION 0H instruction: 249,088 bytes, on execution of LOCATION 0FH instruction: 262,144 bytes
4. Base area and entry area for reset or interrupt. However, the internal RAM area is not used as a reset entry area.