PIC18F4420T-I/PT Microchip Technology, PIC18F4420T-I/PT Datasheet - Page 278
PIC18F4420T-I/PT
Manufacturer Part Number
PIC18F4420T-I/PT
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,44PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18F2420-IML.pdf
(412 pages)
3.PIC18F2420-IML.pdf
(16 pages)
4.PIC18F2420-IML.pdf
(8 pages)
5.PIC18F2420-IML.pdf
(6 pages)
6.PIC18F2420-IML.pdf
(8 pages)
7.PIC18F2420-IML.pdf
(4 pages)
Specifications of PIC18F4420T-I/PT
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4420T-I/PT
Manufacturer:
MICROCHIP
Quantity:
4 000
Company:
Part Number:
PIC18F4420T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC18F2221-ISO PDF datasheet
- PIC18F2420-IML PDF datasheet #2
- PIC18F2420-IML PDF datasheet #3
- PIC18F2420-IML PDF datasheet #4
- PIC18F2420-IML PDF datasheet #5
- PIC18F2420-IML PDF datasheet #6
- PIC18F2420-IML PDF datasheet #7
- Current page: 278 of 412
- Download datasheet (7Mb)
PIC18F2420/2520/4420/4520
BCF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
DS39631E-page 276
Q Cycle Activity:
Before Instruction
After Instruction
Decode
FLAG_REG =
FLAG_REG =
Q1
register ‘f’
Bit Clear f
BCF
0 ≤ f ≤ 255
0 ≤ b ≤ 7
a ∈ [0,1]
0 → f<b>
None
Bit ‘b’ in register ‘f’ is cleared.
If ‘a’ is ‘0’, the Access Bank is selected.
If ‘a’ is ‘1’, the BSR is used to select the
GPR bank (default).
If ‘a’ is ‘0’ and the extended instruction
set is enabled, this instruction operates
in Indexed Literal Offset Addressing
mode whenever f ≤ 95 (5Fh). See
Section 24.2.3 “Byte-Oriented and
Bit-Oriented Instructions in Indexed
Literal Offset Mode” for details.
1
1
BCF
Read
1001
Q2
f, b {,a}
C7h
47h
FLAG_REG,
bbba
Process
Data
Q3
ffff
7, 0
register ‘f’
Write
Q4
ffff
BN
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
If Jump:
If No Jump:
Before Instruction
After Instruction
operation
Decode
Decode
PC
If Negative
If Negative
Q1
No
Q1
PC
PC
Read literal
Read literal
operation
Branch if Negative
BN
-128 ≤ n ≤ 127
if Negative bit is ‘1’,
(PC) + 2 + 2n → PC
None
If the Negative bit is ‘1’, then the
program will branch.
The 2’s complement number ‘2n’ is
added to the PC. Since the PC will have
incremented to fetch the next
instruction, the new address will be
PC + 2 + 2n. This instruction is then a
two-cycle instruction.
1
1(2)
HERE
1110
Q2
No
Q2
‘n’
‘n’
=
=
=
=
=
© 2008 Microchip Technology Inc.
n
address (HERE)
1;
address (Jump)
0;
address (HERE + 2)
0110
BN
operation
Process
Process
Data
Data
Q3
No
Q3
Jump
nnnn
Write to PC
operation
operation
Q4
No
Q4
No
nnnn
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