PIC17C756A MICROCHIP [Microchip Technology], PIC17C756A Datasheet - Page 208

• Manufacturer Part Number: PIC17C756A
• Description: High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D
• Manufacturer: MICROCHIP [Microchip Technology]

PIC17C7XX
CLRWDT
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example:
DS30289B-page 208
Before Instruction
After Instruction
Decode
WDT counter
WDT counter
WDT Postscaler
TO
PD
Q1
operation
Clear Watchdog Timer
[ label ] CLRWDT
None
00h
0
1
1
TO, PD
CLRWDT instruction resets the Watch-
dog Timer. It also resets the postscaler
of the WDT. Status bits TO and PD are
set.
1
1
CLRWDT
0000
Q2
No
WDT postscaler,
TO
PD
WDT
=
=
=
=
=
0000
?
0x00
0
1
1
Process
Data
Q3
0000
operation
Q4
No
0100
COMF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example:
Before Instruction
After Instruction
Decode
REG1
REG1
WREG
Q1
=
=
=
register ’f’
Complement f
[ label ] COMF
0
d
Z
The contents of register ’f’ are comple-
mented. If ’d’ is 0 the result is stored in
WREG. If ’d’ is 1 the result is stored
back in register ’f’.
1
1
COMF
( f )
Read
0001
Q2
0x13
0x13
0xEC
f
[0,1]
2000 Microchip Technology Inc.
255
(dest)
REG1,0
001d
Process
Data
Q3
f,d
ffff
destination
Write to
Q4
ffff