參數(shù)資料
型號: MC68HC705C9ACP
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: Microcontrollers
中文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP40
封裝: PLASTIC, DIP-40
文件頁數(shù): 48/160頁
文件大小: 2076K
代理商: MC68HC705C9ACP
Central Processor Unit (CPU)
Advance Information
MC68HC705C9A — Rev. 4.0
48
Central Processor Unit (CPU)
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Figure 3-1. Programming Model
Figure 3-2. Interrupt Stacking Order
3.3.1 Accumulator (A)
The accumulator is a general-purpose 8-bit register used to hold
operands and results of arithmetic calculations or data manipulations.
3.3.2 Index Register (X)
The index register is an 8-bit register used for the indexed addressing
value to create an effective address. The index register may also be
used as a temporary storage area.
A
7
0
X
7
0
H
I
N
Z
C
CCR
1
1
SP
7
0
PC
15
0
ACCUMULATOR
INDEX REGISTER
PROGRAM COUNTER
STACK POINTER
CONDITION CODE REGISTER
0
15
0
0
0
0
0
0
0
INDEX REGISTER
PCL
ACCUMULATOR
CONDITION CODE REGISTER
PCH
1
1
1
7
0
STACK
I
N
T
E
R
R
U
P
T
DECREASING
MEMORY
ADDRESSES
UNSTACK
R
E
T
U
R
N
INCREASING
MEMORY
ADDRESSES
F
Freescale Semiconductor, Inc.
n
.
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