PIC12LC671-04I/SM Microchip Technology, PIC12LC671-04I/SM Datasheet - Page 75

• Manufacturer Part Number: PIC12LC671-04I/SM
• Description: IC MCU OTP 1KX14 LV A/D 8-SOIJ
• Manufacturer: Microchip Technology
• Series: PIC® 12Cr

Specifications of PIC12LC671-04I/SM

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
• Processor Series: PIC12LC
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 5
• Number Of Timers: 8
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

CLRWDT
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
COMF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
1999 Microchip Technology Inc.
Clear Watchdog Timer
[ label ] CLRWDT
None
00h
0
1
1
TO, PD
CLRWDT instruction resets the
Watchdog Timer. It also resets the
prescaler of the WDT. Status bits
TO and PD are set.
1
1
Before Instruction
After Instruction
Complement f
[ label ] COMF
0
d
(f)
Z
The contents of register ’f’ are
complemented. If ’d’ is 0, the
result is stored in W. If ’d’ is 1, the
result is stored back in register ’f’.
1
1
Before Instruction
After Instruction
CLRWDT
COMF
00
00
f
[0,1]
WDT prescaler,
TO
PD
(dest)
127
WDT
WDT counter =
WDT counter =
WDT prescaler=
TO
PD
REG1
REG1
W
0000
1001
REG1,0
=
=
=
f,d
0110
dfff
=
=
0x13
0x13
0xEC
?
0x00
0
1
1
0100
ffff
DECF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
DECFSZ
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Decrement f
[ label ] DECF f,d
0
d
(f) - 1
Z
Decrement register ’f’. If ’d’ is 0,
the result is stored in the W regis-
ter. If ’d’ is 1, the result is stored
back in register ’f’.
1
1
Before Instruction
After Instruction
Decrement f, Skip if 0
[ label ] DECFSZ f,d
0
d
(f) - 1
None
The contents of register ’f’ are
decremented. If ’d’ is 0, the result
is placed in the W register. If ’d’ is
1, the result is placed back in reg-
ister ’f’.
If the result is 0, the next instruc-
tion, which is already fetched, is
discarded. A NOP is executed
instead making it a two cycle
instruction.
1
1(2)
Before Instruction
After Instruction
DECF
HERE
CONTINUE •
00
00
PC
CNT
if CNT =
PC
if CNT
PC
f
f
[0,1]
[0,1]
PIC12C67X
127
127
(dest)
(dest);
CNT
Z
CNT
Z
=
=
=
=
0011
1011
CNT,
DECFSZ
GOTO
•
•
address
0,
CNT - 1
0,
address CONTINUE
address HERE+1
DS30561B-page 75
1
=
=
=
=
skip if result = 0
dfff
dfff
HERE
0x01
0
0x00
1
CNT, 1
LOOP
ffff
ffff