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PIC18F258-E/LSQTP Datasheet(PDF) 304 Page - Microchip Technology

No. de pieza PIC18F258-E/LSQTP
Descripción Electrónicos  28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module
PDF  402 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F258-E/LSQTP Datasheet(HTML) 304 Page - Microchip Technology

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PIC18FXX8
DS41159E-page 302
© 2006 Microchip Technology Inc.
GOTO
Unconditional Branch
Syntax:
[
label ]
GOTO k
Operands:
0
≤ k ≤ 1048575
Operation:
k
→ PC<20:1>
Status Affected:
None
Encoding:
1st word (k<7:0>)
2nd word(k<19:8>)
1110
1111
1111
k19kkk
k7kkk
kkkk
kkkk0
kkkk8
Description:
GOTO
allows an unconditional branch
anywhere within entire 2-Mbyte memory
range. The 20-bit value ‘k’ is loaded into
PC<20:1>. GOTO is always a two-cycle
instruction.
Words:
2
Cycles:
2
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read literal
‘k’<7:0>
No
operation
Read literal
‘k’<19:8>,
Write to PC
No
operation
No
operation
No
operation
No
operation
Example:
GOTO THERE
After Instruction
PC =
Address (THERE)
INCF
Increment f
Syntax:
[
label ]
INCF
f [,d [,a]]
Operands:
0
≤ f ≤ 255
d
∈ [0,1]
a
∈ [0,1]
Operation:
(f) + 1
→ dest
Status Affected:
C, DC, N, OV, Z
Encoding:
0010
10da
ffff
ffff
Description:
The contents of register ‘f’ are
incremented. If ‘d’ is ‘0’, the result is
placed in W. If ‘d’ is ‘1’, the result is
placed back in register ‘f’ (default). 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 (default).
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read
register ‘f’
Process
Data
Write to
destination
Example:
INCF
CNT,
Before Instruction
CNT
=
0xFF
Z=
0
C=
?
DC
=
?
After Instruction
CNT
=
0x00
Z=
1
C=
1
DC
=
1



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