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ST7MC1K2 데이터시트(PDF) 303 Page - STMicroelectronics

부품명 ST7MC1K2
상세설명  Clock, reset and supply management
PDF  371 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7MC1K2 데이터시트(HTML) 303 Page - STMicroelectronics

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Obsolete
Product(s)
- Obsolete
Product(s)
ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto
Instruction set
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11
Instruction set
11.1
CPU addressing modes
The CPU features 17 different addressing modes which can be classified in 7 main groups:
The CPU instruction set is designed to minimize the number of bytes required per instruction: To do so,
most of the addressing modes may be subdivided in two sub-modes called long and short:
●
Long addressing mode is more powerful because it can use the full 64 Kbyte address space,
however it uses more bytes and more CPU cycles.
●
Short addressing mode is less powerful because it can generally only access page zero (0000h -
00FFh range), but the instruction size is more compact, and faster. All memory to memory
instructions use short addressing modes only (CLR, CPL, NEG, BSET, BRES, BTJT, BTJF, INC,
DEC, RLC, RRC, SLL, SRL, SRA, SWAP)
The ST7 assembler optimizes the use of long and short addressing modes.
Table 177.
CPU addressing mode groups
Addressing mode
Example
Inherent
nop
Immediate
ld A,#$55
Direct
ld A,$55
Indexed
ld A,($55,X)
Indirect
ld A,([$55],X)
Relative
jrne loop
Bit operation
bset
byte,#5
Table 178.
CPU addressing mode overview
Mode
Syntax
Destination
Pointer address
(Hex.)
Pointer size
(Hex.)
Length
(bytes)
Inherent
nop
+ 0
Immediate
ld A,#$55
+ 1
Short
Direct
ld A,$10
00..FF
+ 1
Long
Direct
ld A,$1000
0000..FFFF
+ 2
No Offset
Direct
Indexed ld A,(X)
00..FF
+ 0
Short
Direct
Indexed ld A,($10,X)
00..1FE
+ 1
Long
Direct
Indexed ld A,($1000,X)
0000..FFFF
+ 2
Short
Indirect
ld A,[$10]
00..FF
00..FF
byte
+ 2
Long
Indirect
ld A,[$10.w]
0000..FFFF
00..FF
word
+ 2
Short
Indirect Indexed ld A,([$10],X)
00..1FE
00..FF
byte
+ 2
Long
Indirect Indexed ld A,([$10.w],X)
0000..FFFF
00..FF
word
+ 2
Relative
Direct
jrne loop
PC+/-127
+ 1
Obsolete
Product(s)
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Product(s)



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