PIC18F248-E/SP Microchip Technology, PIC18F248-E/SP Datasheet - Page 296

• Manufacturer Part Number: PIC18F248-E/SP
• Description: IC MCU FLASH 8KX16 W/CAN 28DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F248-E/SP

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 22
• 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 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

BTFSC
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
DS41159E-page 294
PIC18FXX8
Q Cycle Activity:
If skip:
If skip and followed by 2-word instruction:
Before Instruction
After Instruction
operation
operation
operation
Decode
PC
If FLAG<1>
If FLAG<1>
No
No
No
Q1
Q1
Q1
PC
PC
Bit Test File, Skip if Clear
[ label ] BTFSC f,b[,a]
0
0
a
skip if (f<b>) = 0
None
If bit ‘b’ in register ‘f’ is ‘0’, then the next
instruction is skipped.
If bit ‘b’ is ‘0’, then the next instruction
fetched during the current instruction
execution is discarded and a NOP is
executed instead, making this a two-cycle
instruction. 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(2)
Note:
register ‘f’
HERE
FALSE
TRUE
operation
operation
operation
1011
f
b
Read
[0,1]
No
No
No
Q2
Q2
Q2
=
=
=
=
=
255
7
3 cycles if skip and followed
by a 2-word instruction.
address (HERE)
0;
address (TRUE)
1;
address (FALSE)
BTFSC
:
:
bbba
operation
operation
operation
Process
Data
No
No
No
Q3
Q3
Q3
FLAG, 1
ffff
operation
operation
operation
operation
No
No
No
No
Q4
Q4
Q4
ffff
BTFSS
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
If skip:
If skip and followed by 2-word instruction:
Before Instruction
After Instruction
operation
operation
operation
Decode
PC
If FLAG<1>
If FLAG<1>
No
No
No
Q1
Q1
Q1
PC
PC
Bit Test File, Skip if Set
[ label ] BTFSS f,b[,a]
0
0
a
skip if (f<b>) = 1
None
If bit ‘b’ in register ‘f’ is ‘1’, then the next
instruction is skipped.
If bit ‘b’ is ‘1’, then the next instruction
fetched during the current instruction
execution is discarded and a NOP is
executed instead, making this a two-cycle
instruction. 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(2)
Note:
register ‘f’
operation
operation
operation
HERE
FALSE
TRUE
1010
Read
f
b
[0,1]
No
No
No
Q2
Q2
Q2
=
=
=
=
=
255
© 2006 Microchip Technology Inc.
7
3 cycles if skip and followed
by a 2-word instruction.
address (HERE)
0;
address (FALSE)
1;
address (TRUE)
BTFSS
:
:
bbba
operation
operation
operation
Process
Data
No
No
No
Q3
Q3
Q3
FLAG, 1
ffff
operation
operation
operation
operation
No
No
No
No
Q4
Q4
Q4
ffff