PIC16F54-I/P Microchip Technology, PIC16F54-I/P Datasheet - Page 53

• Manufacturer Part Number: PIC16F54-I/P
• Description: IC MCU FLASH 512X12 18DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F54-I/P

• Program Memory Type: FLASH
• Program Memory Size: 768B (512 x 12)
• Package / Case: 18-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: POR, WDT
• Number Of I /o: 12
• Ram Size: 25 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 25 B
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 1
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: DV164120, DV164101, ICE2000
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DVA16XP180 - ADAPTER DEVICE FOR MPLAB-ICEAC164001 - MODULE SKT PROMATEII 18/28DIP
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

SUBWF
Syntax:
Operands:
Operation:
Status Affected: C, DC, Z
Encoding:
Description:
Words:
Cycles:
Example 1:
Example 2:
Example 3:
© 2007 Microchip Technology Inc.
Before Instruction
After Instruction
Before Instruction
After Instruction
After Instruction
REG1
W
C
REG1
W
C
REG1
W
C
REG1
W
C
Before Instruction
REG1
W
C
REG1
W
C
Subtract (2’s complement method)
Subtract W from f
[ label ] SUBWF f, d
0 ≤ f ≤ 31
d ∈ [0,1]
(f) – (W) → (dest)
the W register from register ‘f’. If ‘d’
is ‘0’, the result is stored in the W
register. If ‘d’ is ‘1’, the result is
stored back in register ‘f’.
1
1
SUBWF
0000
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
3
2
?
1
2
1
2
2
?
0
2
1
1
2
?
0xFF
2
0
10df
REG1, 1
; result is positive
; result is zero
; result is negative
ffff
SWAPF
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Example:
TRIS
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Example:
Before Instruction
After Instruction
Before Instruction
After Instruction
REG1
REG1
W
W
TRISB
Swap Nibbles in f
[ label ] SWAPF f, d
0 ≤ f ≤ 31
d ∈ [0,1]
(f<3:0>) → (dest<7:4>);
(f<7:4>) → (dest<3:0>)
The upper and lower nibbles of
register ‘f’ are exchanged. If ‘d’ is
‘0’, the result is placed in W
register. If ‘d’ is ‘1’, the result is
placed in register ‘f’.
1
1
SWAPF REG1, 0
=
=
Load TRIS Register
[ label ] TRIS
f = 5, 6, 7, 8 or 9
(W) → TRIS register f
TRIS register ‘f’ (f = 5, 6 or 7) is
loaded with the contents of the W
register.
1
1
TRIS
0011
0000
=
=
=
0xA5
0xA5
0xA5
0xA5
0x5A
PORTB
10df
PIC16F5X
0000
DS41213D-page 51
f
ffff
0fff