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STC89C53RC датащи(PDF) 42 Page - STCmicro Technology Co,.Ltd

номер детали STC89C53RC
подробное описание детали  Enhanced 80C51 Central Processing Unit ,6T or 12T per machine cycle
PDF  165 Pages
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производитель  STC [STCmicro Technology Co,.Ltd]
домашняя страница  http://www.stcmicro.com/
Logo STC - STCmicro Technology Co,.Ltd

STC89C53RC датащи(HTML) 42 Page - STCmicro Technology Co,.Ltd

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ADD A,Rn
Bytes:
1
Cycles:
1
Encoding:
0 0 1 0
1 r r r
Operation:
ADD
(A)←(A) + (Rn)
←(A) + (Rn)
(A) + (Rn)
ADD A,direct
Bytes:
2
Cycles:
1
Encoding:
0 0 1 0
0 1 0 1
direct address
Operation:
ADD
(A)←(A) + (direct)
←(A) + (direct)
(A) + (direct)
ADD A,@Ri
Bytes:
1
Cycles:
1
Encoding:
0 0 1 0
0 1 1 i
Operation:
ADD
(A)←(A) + ((Ri))
←(A) + ((Ri))
(A) + ((Ri))
ADD A,#data
Bytes:
2
Cycles:
1
Encoding:
0 0 1 0
0 1 0 0
immediate data
Operation:
ADD
(A)←(A) + #data
←(A) + #data
(A) + #data
ADDC A,<src-byte>
Function:
Add with Carry
Description:
ADDC simultaneously adds the byte variable indicated, the Carry flag and the Accumulator,
leaving the result in the Accumulator. The carry and auxiliary-carry flags are set, respectively,
if there is a carry-out from bit 7 or bit 3, and cleared otherwise. When adding unsigned
integers, the carry flag indicates an overflow occured.
OV is set if there is a carry-out of bit 6 but not out of bit 7, or a carry-out of bit 7 but not
out of bit 6; otherwise OV is cleared. When adding signed integers, OV indicates a negative
number produced as the sum of two positive operands or a positive sum from two negative
operands.
Four source operand addressing modes are allowed: register, direct, register-indirect, or
immediate.
42



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