PIC18F24 MICROCHIP [Microchip Technology], PIC18F24 Datasheet - Page 318
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PIC18F24
Manufacturer Part Number
PIC18F24
Description
28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC18F24.pdf
(402 pages)
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SLEEP
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
† If WDT causes wake-up, this bit is cleared.
DS41159D-page 316
PIC18FXX8
Q Cycle Activity:
Before Instruction
After Instruction
Decode
TO =
PD =
TO =
PD =
Q1
?
?
1 †
0
operation
Enter Sleep Mode
[ label ]
None
00h
0
1
0
TO, PD
The Power-Down status bit (PD) is
cleared. The Time-out status bit (TO)
is set. Watchdog Timer and its
postscaler are cleared.
The processor is put into Sleep mode
with the oscillator stopped.
1
1
SLEEP
No
Q2
0000
WDT postscaler,
TO,
PD
WDT,
SLEEP
0000
Process
Data
Q3
0000
Sleep
Go to
Q4
0011
SUBFWB
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example 1:
Example 2:
Example 3:
Q Cycle Activity:
Before Instruction
After Instruction
Before Instruction
After Instruction
Before Instruction
After Instruction
Decode
REG
W
C
REG
W
C
Z
N
REG
W
C
REG
W
C
Z
N
REG
W
C
REG
W
C
Z
N
Q1
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
register ‘f’
(W) – (f) – (C)
Subtract register ‘f’ and Carry flag
1
Subtract f from W with Borrow
[ label ]
0
d
a
N, OV, C, DC, Z
(borrow) from W (2’s complement
method). If ‘d’ is ‘0’, the result is stored
in W. If ‘d’ is ‘1’, the result is stored in
register ‘f’ (default). If ‘a’ is ‘0’, the
Access Bank will be selected,
overriding the BSR value. If ‘a’ is ‘1’,
then the bank will be selected as per
the BSR value (default).
1
Read
SUBFWB REG
SUBFWB
SUBFWB
Q2
0101
0x03
0x02
0x01
0xFF
0x02
0x00
0x00
0x01
2
5
1
2
3
1
0
0
1
2
0
0
2
1
1
0
f
2004 Microchip Technology Inc.
[0,1]
[0,1]
255
; result is positive
; result is zero
SUBFWB
; result is negative
01da
REG, 0, 0
REG, 1, 0
Process
Data
Q3
dest
ffff
f [,d [,a]]
destination
Write to
Q4
ffff
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