UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 70

• 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

3.3.3 Table indirect addressing
3.3.4 Register addressing
70
[Function]
[Illustration]
[Function]
[Illustration]
Table contents (branch destination address) of the particular location to be addressed by bits 1 to 5 of the
immediate data of an operation code are transferred to the program counter (PC) and branched.
This function is carried out when the CALLT [addr5] instruction is executed.
This instruction references the address stored in the memory table from 40H to 7FH, and allows branching to
the entire memory space.
Register pair (AX) contents to be specified with an instruction word are transferred to the program counter (PC)
and branched.
This function is carried out when the BR AX instruction is executed.
Effective address+1
Effective address
Operation code
rp
PC
7
15
PC
15
15
7
7
1
0
CHAPTER 3 CPU ARCHITECTURE
1
0
6
Memory (Table)
User’s Manual U17554EJ4V0UD
A
5
0
High Addr.
Low Addr.
0
ta
0
4–0
0
0
8
0
1
7
7
0
8
0
8
0
1
7
0
7
6
1
X
5
0
0
1
0
0
0