UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 80

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

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78
Data memory
space
Notes 1. During on-chip debugging, use of this area is disabled since it is used as the user data backup area for
RAM space in
which instruction
can be fetched
Program
memory space
2. During on-chip debugging, use of this area is disabled since it is used as the communication command
3. When boot swap is not used:
4. Writing boot cluster 0 can be prohibited depending on the setting of security (see 26.8
communication.
area (269 bytes).
When boot swap is used:
Settings).
F E D F H
F 9 D 0 H
F 9 C F H
F F F F H
F E F F H
F E E 0 H
F B 0 0 H
F A F F H
F A 0 0 H
F 9 F F H
F 9 F 8 H
F 9 F 7 H
F 7 F F H
E F F F H
F F 0 0 H
F 9 8 0 H
F 9 7 F H
F 8 0 0 H
F 0 0 0 H
0 1 8 F H
0 1 9 0 H
0 0 8 3 H
0 0 8 2 H
0 0 0 0 H
Internal high-speed RAM
Internal expansion RAM
General-purpose
Figure 3-4. Memory Map ( PD78F0845, 78F0847, 78F0849)
Extended function
Extended function
LCD display RAM
Special function
registers (SFR)
registers (EFR)
registers (EFR)
32 × 8 bits
Flash memory
61440 × 8 bits
2048 × 8 bits
registers
1024 × 8 bits
256 × 8 bits
AFCAN area
256 × 8 bits
40 × 8 bits
80 × 8 bits
Reserved
8 × 8 bits
Note 1
Note 2
Preliminary User’s Manual U19748EJ1V0UD
CHAPTER 3 CPU ARCHITECTURE
Set the option bytes to 0080H to 0084H.
Set the option bytes to 0080H to 0084H and 1080H to 1084H.
F F 2 0 H
F F 1 F H
F E 2 0 H
F E 1 F H
F E 1 0 H
F E 0 F H
Short direct
addressing
E F F F H
0 F F F H
1 0 8 5 H
1 0 8 4 H
1 0 8 0 H
1 0 7 F H
0 7 F F H
0 0 3 F H
1 0 0 0 H
0 8 0 0 H
0 0 8 5 H
0 0 8 4 H
0 0 8 0 H
0 0 7 F H
0 0 4 0 H
0 0 0 0 H
Option byte area
Option byte area
CALLF entry area
CALLT table area
Vector table area
Program area
Program area
Program area
2048
1915
64
64
5
5
8 bits
8 bits
8 bits
8 bits
8 bits
8 bits
Note 3
Note 3
1 F F F H
Boot cluster 0
Boot cluster 1
Security
Note 4