UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 44

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

44
Notes 1.
Remark The flash memory is divided into blocks (one block = 1 KB). For the address values and block numbers,
2.
3.
4.
Bank
area
Common
area
Data memory
space
see Table 3-2 Correspondence Between Address Values and Block Numbers in Flash Memory.
During on-chip debugging, use of this area is disabled since it is used as the user data backup area for
communication.
During on-chip debugging, use of this area is disabled since it is used as the communication command
area (269 bytes).
When boot swap is not used: Set the option bytes to 0080H to 0084H.
When boot swap is used:
Writing boot cluster 0 can be prohibited depending on the setting of security (see 24.8
Setting).
RAM space in
which instruction
can be fetched
Program
memory space
1 KB
B F F F H
B C 0 0 H
B B F F H
7 B F F H
8 4 F F H
8 3 F F H
7 F F F H
7 C 0 0 H
0 7 F F H
0 3 F F H
8 0 0 0 H
0 4 0 0 H
0 0 0 0 H
FF00H
FEFFH
FEE0H
FEDFH
FB00H
FAFFH
FA00H
F9FFH
F800H
F7FFH
E800H
E7FFH
BFFFH
018FH
FFFFH
C000H
7FFFH
0190H
0083H
0082H
0000H
8000H
Block 2FH
Block 20H
Block 1FH
Block 01H
Block 00H
Internal high-speed RAM
(Memory bank 0)
Internal expansion RAM
General-purpose
Special function
registers (SFR)
32 × 8 bits
16384 × 8 bits
Flash memory
Flash memory
32768 × 8 bits
registers
4096 × 8 bits
1024 × 8 bits
AFCAN area
256 × 8 bits
256 × 8 bits
Reserved
Reserved
Figure 3-3. Memory Map (
(common)
(bank 0)
Note 1
Note 2
CHAPTER 3 CPU ARCHITECTURE
Set the option bytes to 0080H to 0084H and 1080H to 1084H.
User’s Manual U17554EJ4V0UD
Block 3FH
Block 30H
16384 × 8 bits
16384 × 8 bits
FF20H
FF1FH
FE20H
FE1FH
FE10H
FE0FH
(Memory bank 1)
(bank 2)
(bank 1)
16384 × 8 bits
(bank 3)
Short direct
addressing
μ
PD78F0889)
7 F F F H
1 0 8 5 H
1 0 8 4 H
1 0 7 F H
0 F F F H
0 7 F F H
1 0 8 0 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 3 F H
0 0 0 0 H
Block 4FH
Block 40H
(Memory bank 2)
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
Block 5FH
Block 50H
(Memory bank 3)
1 F F F H
Boot cluster 0
Boot cluster 1
Note 4
Security