参数资料
型号: MC68HC11F1VPU2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: Technical Summary 8-Bit Microcontroller
中文描述: 8-BIT, EEPROM, 2 MHz, MICROCONTROLLER, PQFP80
封装: 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, LQFP-80
文件页数: 83/163页
文件大小: 711K
代理商: MC68HC11F1VPU2
MOTOROLA
CENTRAL PROCESSING UNIT
MC68HC11F1
3-2
TECHNICAL DATA
Figure 3-1 Programming Model
3.1.1 Accumulators A, B, and D
Accumulators A and B are general-purpose 8-bit registers that hold operands and re-
sults of arithmetic calculations or data manipulations. For some instructions, these two
accumulators are treated as a single double-byte (16-bit) accumulator called accumu-
lator D. Although most instructions can use accumulators A or B interchangeably, the
following exceptions apply:
The ABX and ABY instructions add the contents of 8-bit accumulator B to the contents
of 16-bit register X or Y, but there are no equivalent instructions that use A instead of B.
The TAP and TPA instructions transfer data from accumulator A to the condition code
register, or from the condition code register to accumulator A, however, there are no
equivalent instructions that use B rather than A.
The decimal adjust accumulator A (DAA) instruction is used after binary-coded deci-
mal (BCD) arithmetic operations, but there is no equivalent BCD instruction to adjust
accumulator B.
CARRY
OVERFLOW
ZERO
NEGATIVE
I INTERRUPT MASK
HALF-CARRY (FROM BIT 3)
X INTERRUPT MASK
STOP DISABLE
CCR
PC
SP
IY
IX
D
S
PROGRAM COUNTER
STACK POINTER
INDEX REGISTER Y
INDEX REGISTER X
DOUBLE ACCUMULATOR D
ACCUMULATOR B
CONDITION CODE REGISTER
X
H
I
N
Z
V
C
70
0
15
0
15
0
15
0
15
0
15
70
ACCUMULATOR A
1
2
3
4
5
6
B
A
相关PDF资料
PDF描述
MC68HC11F1VPU3 Technical Summary 8-Bit Microcontroller
MC68HC11F1VPU4 Technical Summary 8-Bit Microcontroller
MI-QC211-MWY Military DC-DC Power Supplies
MI-QC211-MXY Military DC-DC Power Supplies
MI-QC211-MYY Military DC-DC Power Supplies
相关代理商/技术参数
参数描述
MC68HC11F1VPU3 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11F1VPU4 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11FC0 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11FC0CFU4 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11FC0CFU5 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller