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PIC18F258-E/LSQTP Datasheet(PDF) 308 Page - Microchip Technology

Part # PIC18F258-E/LSQTP
Description  28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module
PDF  402 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F258-E/LSQTP Datasheet(HTML) 308 Page - Microchip Technology

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PIC18FXX8
DS41159E-page 306
© 2006 Microchip Technology Inc.
MOVFF
Move f to f
Syntax:
[
label ]
MOVFF fs,fd
Operands:
0
≤ fs ≤ 4095
0
≤ fd ≤ 4095
Operation:
(fs) → fd
Status Affected:
None
Encoding:
1st word (source)
2nd word (destin.)
1100
1111
ffff
ffff
ffff
ffff
ffffs
ffffd
Description:
The contents of source register ‘fs’ are
moved to destination register ‘fd’.
Location of source ‘fs’ can be anywhere
in the 4096-byte data space (000h to
FFFh) and location of destination ‘fd’
can also be anywhere from 000h to
FFFh.
Either source or destination can be W
(a useful special situation).
MOVFF
is particularly useful for
transferring a data memory location to a
peripheral register (such as the transmit
buffer or an I/O port).
The MOVFF instruction cannot use the
PCL, TOSU, TOSH or TOSL as the
destination register.
The MOVFF instruction should not be
used to modify interrupt settings while
any interrupt is enabled (see page 77).
Words:
2
Cycles:
2 (3)
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read
register ‘f’
(src)
Process
Data
No
operation
Decode
No
operation
No dummy
read
No
operation
Write
register ‘f’
(dest)
Example:
MOVFF
REG1, REG2
Before Instruction
REG1
=
0x33
REG2
=
0x11
After Instruction
REG1
=
0x33
REG2
=
0x33
MOVLB
Move Literal to Low Nibble in BSR
Syntax:
[
label ]
MOVLB k
Operands:
0
≤ k ≤ 255
Operation:
k
→ BSR
Status Affected:
None
Encoding:
0000
0001
kkkk
kkkk
Description:
The 8-bit literal ‘k’ is loaded into the
Bank Select Register (BSR).
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read literal
‘k’
Process
Data
Write
literal ‘k’ to
BSR
Example:
MOVLB
5
Before Instruction
BSR register
=
0x02
After Instruction
BSR register
=
0x05



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