UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 50

• 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

memory.
50
(b)
The following table shows the relations among bank numbers, CPU addresses, and real addresses of the flash
μ
PD78F0890
(a)
(b)
μ
μ
PD78F0889
PD78F0890
B F F F H
7 F F F H
8 0 0 0 H
0 0 0 0 H
Table 3-5. Bank Numbers, CPU Addresses, and Real Addresses of Flash Memory
4 or more
6 or more
Bank No.
Bank No.
−
0
1
2
3
−
0
1
2
3
4
5
Bank
area 0
16384
8 bits
Bank
area 1
16384
8 bits
CHAPTER 3 CPU ARCHITECTURE
0000H to 7FFFH (common area)
8000H to BFFFH
Setting prohibited
0000H to 7FFFH (common area)
8000H to BFFFH
Setting prohibited
User’s Manual U17554EJ4V0UD
CPU Address
CPU Address
Bank
area 2
16384
8 bits
Common area
32768
8 bits
Bank
area 3
16384
8 bits
00000H to 07FFFH
08000H to 0BFFFH
0C000H to 0FFFFH
10000H to 13FFFH
14000H to 17FFFH
00000H to 07FFFH
08000H to 0BFFFH
0C000H to 0FFFFH
10000H to 13FFFH
14000H to 17FFFH
18000H to 1BFFFH
1C000H to 1FFFFH
Real Address of Flash Memory
Real Address of Flash Memory
Bank
area 4
16384
8 bits
Bank
area 5
16384
8 bits