UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 618

• 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

618
F E F F H
D F F F H
B F F F H
F F F F H
F F 0 0 H
F B 0 0 H
F A F F H
F 9 F F H
F 7 F F H
E 0 0 0 H
C 0 0 0 H
7 F F F H
F A 0 0 H
F 8 0 0 H
8 0 0 0 H
0 0 0 0 H
Cautions 6. Allocate the entry program for self-programming in the common area of 0000H to 7FFFH.
(a)
(b)
Table 24-13. Correspondence Among Bank Numbers, CPU Addresses, and Flash Real Addresses
(memory bank 0)
expansion RAM
(common area)
Flash memory
Flash memory
Internal high-
AFCAN area
μ
μ
speed RAM
Reserved
Reserved
PD78F0889
PD78F0890
Internal
SFR
Normal mode
Figure 24-15. Operation Mode and Memory Map for Self-Programming (
7. If the flash memory size is 96 KB or 128 KB, specify a flash real address, instead of a CPU
4 or more
6 or more
Bank No.
Bank No.
address, as a flash write/erase address.
−
0
1
2
3
−
0
1
2
3
4
5
Memory bank 2
Memory bank 1
Memory bank 3
Memory bank 4
Memory bank 5
Instructions can be fetched
from common area and
selected memory bank.
Flash memory
firmware ROM
accessing
0000H to 7FFFH (common area)
8000H to BFFFH
Setting prohibited
0000H to 7FFFH (common area)
8000H to BFFFH
Setting prohibited
Disable
control
CHAPTER 24 FLASH MEMORY
User’s Manual U17554EJ4V0UD
CPU Address
CPU Address
F E F F H
D F F F H
B F F F H
F F F F H
F F 0 0 H
F B 0 0 H
F A F F H
F 9 F F H
F 7 F F H
E 0 0 0 H
C 0 0 0 H
7 F F F H
F A 0 0 H
F 8 0 0 H
8 0 0 0 H
0 0 0 0 H
expansion RAM
(common area)
Flash memory
Internal high-
AFCAN area
speed RAM
Reserved
Reserved
accessing
Internal
Disable
SFR
Self-programming mode
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
Memory bank 2
Memory bank 1
Memory bank 3
Memory bank 4
Memory bank 5
μ
PD78F0890)
firmware ROM
Flash memory
accessing
control
Enable
Instructions can be
fetched from common
area and firmware ROM.