參數(shù)資料
型號: MC68HLC705KJ1CP
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, PDIP16
封裝: PLASTIC, DIP-16
文件頁數(shù): 55/117頁
文件大小: 1644K
代理商: MC68HLC705KJ1CP
Central Processor Unit (CPU)
Data Sheet
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 4.0
42
Central Processor Unit (CPU)
MOTOROLA
byte that gives a branching range of –128 to +127 bytes from the address of the
next location after the branch instruction.
When using the Motorola assembler, the programmer does not need to calculate
the offset because the assembler determines the proper offset and verifies that it
is within the span of the branch.
4.6.2 Instruction Types
The MCU instructions fall into the following five categories:
Register/memory instructions
Read-modify-write instructions
Jump/branch instructions
Bit manipulation instructions
Control instructions
4.6.2.1 Register/Memory Instructions
These instructions operate on CPU registers and memory locations. Most of them
use two operands. One operand is in either the accumulator or the index register.
The CPU finds the other operand in memory.
Table 4-1. Register/Memory Instructions
Instruction
Mnemonic
Add Memory Byte and Carry Bit to Accumulator
ADC
Add Memory Byte to Accumulator
ADD
AND Memory Byte with Accumulator
AND
Bit Test Accumulator
BIT
Compare Accumulator
CMP
Compare Index Register with Memory Byte
CPX
EXCLUSIVE OR Accumulator with Memory Byte
EOR
Load Accumulator with Memory Byte
LDA
Load Index Register with Memory Byte
LDX
Multiply
MUL
OR Accumulator with Memory Byte
ORA
Subtract Memory Byte and Carry Bit from Accumulator
SBC
Store Accumulator in Memory
STA
Store Index Register in Memory
STX
Subtract Memory Byte from Accumulator
SUB
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