UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 48

• 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

3.1.1 Internal program memory space
counter (PC).
(1) Vector code area
48
78K0/FE2 products incorporate internal ROM (flash memory), as shown below.
The internal program memory space stores the program and table data. Normally, it is addressed with the program
The internal program memory space is divided into the following areas.
μ
μ
μ
μ
The 64-byte area 0000H to 003FH is reserved as a Vector code area. The program start addresses for branch
upon reset signal input or generation of each interrupt request are stored in the Vector code area.
Of the 16-bit address, the lower 8 bits are stored at even addresses and the higher 8 bits are stored at odd
addresses.
PD78F0887
PD78F0888
PD78F0889
PD78F0890
Part Number
Vector Code Address
000AH
000CH
000EH
001AH
001CH
001EH
0000H
0004H
0006H
0008H
0010H
0012H
0014H
0016H
0018H
Flash memory
Structure
RESET input, POC, LVI,
WDT
INTLVI
INTP0
INTP1
INTP2/INTTM002
INTP3/INTTM012
INTP4/INTTM003
INTP5/INTTM013
INTC0ERR
INTC0WUP
INTC0REC
INTC0TRX
INTSRE60
INTSR60
INTST60
49152 × 8 bits (0000H to BFFFH)
61440 × 8 bits (0000H to EFFFH)
98304 × 8 bits
(0000H to 7FFFH (common area: 32 KB) + 8000H to BFFFH (bank area: 16 KB) × 4)
131072 × 8 bits
(0000H to 7FFFH (common area: 32 KB) + 8000H to BFFFH (bank area: 16 KB) × 6)
Interrupt Source
Table 3-3. Internal ROM Capacity
CHAPTER 3 CPU ARCHITECTURE
User’s Manual U17554EJ4V0UD
Table 3-4. Vector Code
Internal ROM
Vector Code Address
002CH
003CH
0020H
0022H
0024H
0026H
0028H
002AH
002EH
0030H
0032H
0034H
0036H
0038H
003AH
003EH
Capacity
INTCSI10/INTSRE61
INTP6/INTSR61
INTP7/INTST61
INTTMH1
INTTMH0
INTTM50
INTTM000
INTTM010
INTAD
INTWTI/INTDMU
INTTM51
INTWT
INTCSI11
INTTM001
INTTM011
BRK
Interrupt Source