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ST6255C Datasheet(PDF) 60 Page - STMicroelectronics

No. de pieza ST6255C
Descripción Electrónicos  8-bit MCUs with ADC, safe reset, auto-reload timer, EEPROM and SPI
PDF  84 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST6255C Datasheet(HTML) 60 Page - STMicroelectronics

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ST6255C ST6265C ST6265B
INSTRUCTION SET (Cont’d)
Arithmetic and Logic. These instructions are
used to perform the arithmetic calculations and
logic operations. In AND, ADD, CP, SUB instruc-
tions one operand is always the accumulator while
the other can be either a data space memory con-
tent or an immediate value in relation with the ad-
dressing mode. In CLR, DEC, INC instructions the
operand can be any of the 256 data space ad-
dresses. In COM, RLC, SLA the operand is always
the accumulator.
Table 19. Arithmetic & Logic Instructions
Notes:
X,Y.Indirect Register Pointers, V & W Short Direct RegistersD. Affected
# . Immediate data (stored in ROM memory)* . Not Affected
rr. Data space register
Instruction
Addressing Mode
Bytes
Cycles
Flags
ZC
ADD A, (X)
Indirect
1
4
ΔΔ
ADD A, (Y)
Indirect
1
4
ΔΔ
ADD A, rr
Direct
2
4
ΔΔ
ADDI A, #N
Immediate
2
4
ΔΔ
AND A, (X)
Indirect
1
4
ΔΔ
AND A, (Y)
Indirect
1
4
ΔΔ
AND A, rr
Direct
2
4
ΔΔ
ANDI A, #N
Immediate
2
4
ΔΔ
CLR A
Short Direct
2
4
ΔΔ
CLR r
Direct
3
4
*
*
COM A
Inherent
1
4
ΔΔ
CP A, (X)
Indirect
1
4
ΔΔ
CP A, (Y)
Indirect
1
4
ΔΔ
CP A, rr
Direct
2
4
ΔΔ
CPI A, #N
Immediate
2
4
ΔΔ
DEC X
Short Direct
1
4
Δ
*
DEC Y
Short Direct
1
4
Δ
*
DEC V
Short Direct
1
4
Δ
*
DEC W
Short Direct
1
4
Δ
*
DEC A
Direct
2
4
Δ
*
DEC rr
Direct
2
4
Δ
*
DEC (X)
Indirect
1
4
Δ
*
DEC (Y)
Indirect
1
4
Δ
*
INC X
Short Direct
1
4
Δ
*
INC Y
Short Direct
1
4
Δ
*
INC V
Short Direct
1
4
Δ
*
INC W
Short Direct
1
4
Δ
*
INC A
Direct
2
4
Δ
*
INC rr
Direct
2
4
Δ
*
INC (X)
Indirect
1
4
Δ
*
INC (Y)
Indirect
1
4
Δ
*
RLC A
Inherent
1
4
ΔΔ
SLA A
Inherent
2
4
ΔΔ
SUB A, (X)
Indirect
1
4
ΔΔ
SUB A, (Y)
Indirect
1
4
ΔΔ
SUB A, rr
Direct
2
4
ΔΔ
SUBI A, #N
Immediate
2
4
ΔΔ



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