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PIC18F4539-E/MLSQTP Datasheet(PDF) 241 Page - Microchip Technology

Part # PIC18F4539-E/MLSQTP
Description  Enhanced FLASH Microcontrollers with Single Phase Induction Motor Control Kernel
PDF  322 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F4539-E/MLSQTP Datasheet(HTML) 241 Page - Microchip Technology

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 2002 Microchip Technology Inc.
Preliminary
DS30485A-page 239
PIC18FXX39
NEGF
Negate f
Syntax:
[ label ] NEGF
f [,a]
Operands:
0
≤ f ≤ 255
a
∈ [0,1]
Operation:
( f ) + 1
→ f
Status Affected:
N, OV, C, DC, Z
Encoding:
0110
110a
ffff
ffff
Description:
Location ‘f’ is negated using two’s
complement. The result is placed in
the data memory location 'f'. If ‘a’ is
0, the Access Bank will be
selected, overriding the BSR value.
If ‘a’ = 1, then the bank will be
selected as per the BSR value.
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read
register 'f'
Process
Data
Write
register 'f'
Example:
NEGF
REG, 1
Before Instruction
REG
=
0011 1010
[0x3A]
After Instruction
REG
=
1100 0110
[0xC6]
NOP
No Operation
Syntax:
[ label ] NOP
Operands:
None
Operation:
No operation
Status Affected:
None
Encoding:
0000
1111
0000
xxxx
0000
xxxx
0000
xxxx
Description:
No operation.
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
No
operation
No
operation
No
operation
Example:
None.



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