參數資料
型號: MC68HC05T7B
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
封裝: SDIP-56
文件頁數: 58/109頁
文件大?。?/td> 9008K
代理商: MC68HC05T7B
Technical Data
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 3.0
48
Central Processor Unit (CPU)
MOTOROLA
Central Processor Unit (CPU)
4.6.4 Program Counter
The program counter is a 16-bit register that contains the address of the
next instruction or operand to be fetched. The five most significant bits
of the program counter are ignored and appear as 00000.
Normally, the address in the program counter automatically increments
to the next sequential memory location every time an instruction or
operand is fetched. Jump, branch, and interrupt operations load the
program counter with an address other than that of the next sequential
location.
Bit
15
14
13
12
11
10
98
765
43
21
Bit
0
Reset:
0
Loaded with vector from $07FE and $07FF
Figure 4-5. Program Counter (PC)
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