PIC18F8621-E/PT Microchip Technology, PIC18F8621-E/PT Datasheet - Page 293

• Manufacturer Part Number: PIC18F8621-E/PT
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,80PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F8621-E/PT

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.75K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 80-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CLRF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
 2005 Microchip Technology Inc.
Q Cycle Activity:
Before Instruction
After Instruction
Decode
FLAG_REG
FLAG_REG
Q1
register ‘f’
Clear f
[ label ] CLRF
0 ≤ f ≤ 255
a ∈ [0,1]
000h → f;
1 → Z
Z
Clears the contents of the specified
register. If ‘a’ is ‘0’, the Access Bank will
be selected, overriding the BSR value.
If ‘a’ = 1, then the bank will be selected
as per the BSR value (default).
1
1
CLRF
Read
0110
Q2
=
=
0x5A
0x00
101a
FLAG_REG,1
Process
Data
f [,a]
Q3
ffff
register ‘f’
PIC18F6525/6621/8525/8621
Write
Q4
ffff
CLRWDT
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Decode
WDT Counter
WDT Counter
WDT Postscaler
TO
PD
Q1
operation
Clear Watchdog Timer
[ label ] CLRWDT
None
000h → WDT;
000h → WDT postscaler;
1 → TO;
1 → PD
TO, PD
CLRWDT instruction resets the
Watchdog Timer. It also resets the
postscaler of the WDT. Status bits, TO
and PD, are set.
1
1
CLRWDT
0000
No
Q2
=
=
=
=
=
0000
?
0x00
0
1
1
Process
Data
Q3
DS39612B-page 291
0000
operation
No
Q4
0100