參數(shù)資料
型號: MC68HC05CJ4FB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封裝: PLASTIC, QFP-44
文件頁數(shù): 29/114頁
文件大?。?/td> 4047K
代理商: MC68HC05CJ4FB
GENERAL RELEASE SPECIFICATION
CPU CORE
Rev. 2.1
3-1
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SECTION 3
CPU CORE
3.1 Introduction
The MCU contains five registers as shown in the programming model of Figure 3-1.
This section describes these registers.
Figure 3-1. Programming Model
3.2 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 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.
H
I
N
Z
C
CCR
SP
1
0
PC
0
12
15
7
0
PROGRAM COUNTER
STACK POINTER
CONDITION CODE REGISTER
15
X
0
7
A
0
7
INDEX REGISTER
ACCUMULATOR
F
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le
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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