PIC16CR83 Datasheet

  • PIC16CR83

  • 18-pin Flash/EEPROM 8-Bit Microcontrollers

  • 2018.18KB

  • 125页

  • MICROCHIP

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PIC16F8X
CLRF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Clear f
[label] CLRF
0
鈮?/div>
f
鈮?/div>
127
00h
鈫?/div>
(f)
1
鈫?/div>
Z
Z
00
0001
1fff
ffff
The contents of register 'f' are cleared
and the Z bit is set.
CLRW
f
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Clear W
[
label
] CLRW
None
00h
鈫?/div>
(W)
1
鈫?/div>
Z
Z
00
0001
0xxx
xxxx
W register is cleared. Zero bit (Z) is
set.
1
1
Q1
Decode
1
1
Q1
Decode
Q2
Read
register
'f'
Q3
Process
data
Q4
Write
register 'f'
Q Cycle Activity:
Q2
No-Opera
tion
Q3
Process
data
Q4
Write to
W
Example
CLRF
FLAG_REG
FLAG_REG
=
=
=
0x5A
0x00
1
Example
CLRW
Before Instruction
After Instruction
FLAG_REG
Z
Before Instruction
W
W
Z
=
=
=
0x5A
0x00
1
After Instruction
CLRWDT
Syntax:
Operands:
Operation:
Clear Watchdog Timer
[
label
] CLRWDT
None
00h
鈫?/div>
WDT
0
鈫?/div>
WDT prescaler,
1
鈫?/div>
TO
1
鈫?/div>
PD
TO, PD
00
0000
0110
0100
CLRWDT
instruction resets the Watch-
dog Timer. It also resets the prescaler
of the WDT. Status bits TO and PD are
set.
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
1
1
Q1
Decode
Q2
No-Opera
tion
Q3
Process
data
Q4
Clear
WDT
Counter
Example
CLRWDT
Before Instruction
WDT counter =
?
0x00
0
1
1
After Instruction
WDT counter =
WDT prescaler=
TO
=
PD
=
DS30430C-page 58
1998 Microchip Technology Inc.

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