參數(shù)資料
型號: MC68HC08GP8AMFB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.2 MHz, MICROCONTROLLER, PQFP44
封裝: PLASTIC, QFP-44
文件頁數(shù): 99/126頁
文件大?。?/td> 4243K
代理商: MC68HC08GP8AMFB
Central Processor Unit (CPU)
Data Sheet
MC68HC08GP8A
74
Central Processor Unit (CPU)
MOTOROLA
6.3 CPU Registers
Figure 6-1 shows the five CPU registers. CPU registers are not part of the memory
map.
Figure 6-1. CPU Registers
6.3.1 Accumulator
The accumulator is a general-purpose 8-bit register. The CPU uses the
accumulator to hold operands and the results of arithmetic/logic operations.
ACCUMULATOR (A)
INDEX REGISTER (H:X)
STACK POINTER (SP)
PROGRAM COUNTER (PC)
CONDITION CODE REGISTER (CCR)
CARRY/BORROW FLAG
ZERO FLAG
NEGATIVE FLAG
INTERRUPT MASK
HALF-CARRY FLAG
TWO’S COMPLEMENT OVERFLOW FLAG
V1 1 H
I
N Z C
H
X
0
7
15
70
Bit 7
654321
Bit 0
Read:
Write:
Reset:
Unaffected by reset
Figure 6-2. Accumulator (A)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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