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ST72344K2 датащи(PDF) 192 Page - STMicroelectronics

номер детали ST72344K2
подробное описание детали  SCI asynchronous serial interface
PDF  247 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72344K2 датащи(HTML) 192 Page - STMicroelectronics

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Instruction set
ST72344xx, ST2345xx
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Doc ID 12321 Rev 6
12.1.2
Immediate
Immediate instructions have 2 bytes; the first byte contains the opcode, the second byte
contains the operand value.
12.1.3
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.
12.1.4
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:
SLL, SRL, SRA, RLC, RRC
Shift and Rotate Operations
SWAP
Swap Nibbles
Table 77.
Inherent instructions (continued)
Inherent instruction
Function
Table 78.
Immediate instructions
Immediate instruction
Function
LD
Load
CP
Compare
BCP
Bit Compare
AND, OR, XOR
Logical Operations
ADC, ADD, SUB, SBC
Arithmetic Operations



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