參數(shù)資料
型號(hào): μPD784035Y
廠商: NEC Corp.
英文描述: 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器)
中文描述: 8 / 16位單片機(jī)微控制器(8 / 16位微控制器)
文件頁數(shù): 32/125頁
文件大?。?/td> 366K
代理商: ΜPD784035Y
CHAPTER 3 ADDRESSING
15
3.1.3 Table Indirect Addressing
[Function]
Table contents (branch destination address) of the particular location, addressed by the low-order-5-bit
immediate data of an instruction code from bit 1 to bit 5, are transferred to the program counter (PC) and
branched.
Table indirect addressing is performed when the CALLT [addr5] instruction is executed. This instruction
references the address stored in the memory table (40H to 7FH) and can be used to branch to any address
within the memory spaces.
[Illustration]
15
1
15
0
PC
7
0
Lower byte of address
Higher byte of address
Memory (table)
Effective address + 1
Effective address
0
1
0
0
0
0
0
0
0
0
8
7
8
7
6
5
0
0
1
0
1
7
6
5
1
0
ta
4–0
Instruction code
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