參數(shù)資料
型號: MC68HLC705KJ1CDWR2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO16
封裝: SOIC-16
文件頁數(shù): 86/144頁
文件大?。?/td> 1377K
代理商: MC68HLC705KJ1CDWR2
Technical Data
MC68HC705KJ1 — Rev. 2.0
46
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
9
8
7
6
5
4
3
2
1
Bit
0
Reset:
0
Loaded with vector from $07FE and $07FF
Figure 4-5. Program Counter (PC)
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