参数资料
型号: ST7PLU09MAE
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO8
封装: 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8
文件页数: 108/124页
文件大小: 1995K
代理商: ST7PLU09MAE
Instruction set
ST7LUS5, ST7LU05, ST7LU09
11.1.2
Immediate
Immediate instructions have 2 bytes: The first byte contains the opcode. The second byte
contains the operand value.
11.1.3
Direct
In Direct instructions, the operands are referenced by their memory address.
The direct addressing mode consists of two submodes:
Direct (Short)
The address is a byte, thus requires only 1 byte after the opcode, but only allows 00 - FF
addressing space.
Direct (Long)
The address is a word, thus allowing 64 Kbyte addressing space, but requires 2 bytes after
the opcode.
11.1.4
Indexed (No Offset, Short, Long)
In this mode, the operand is referenced by its memory address, which is defined by the
unsigned addition of an index register (X or Y) with an offset.
The indirect addressing mode consists of three submodes:
Indexed (No Offset)
There is no offset (no extra byte after the opcode), and allows 00 - FF addressing space.
Indexed (Short)
The offset is a byte, thus requires only 1 byte after the opcode and allows 00 - 1FE
addressing space.
Indexed (Long)
The offset is a word, thus allowing 64 Kbyte addressing space and requires 2 bytes after the
opcode.
Table 56.
Immediate instructions
Instruction
Function
LD
Load
CP
Compare
BCP
Bit Compare
AND, OR, XOR
Logical Operations
ADC, ADD, SUB, SBC
Arithmetic Operations
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