PIC16C56A/JW Microchip Technology, PIC16C56A/JW Datasheet - Page 61

• Manufacturer Part Number: PIC16C56A/JW
• Description: IC MCU EPROM 1KX12 18CDIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C56A/JW

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: POR, WDT
• Number Of I /o: 12
• Program Memory Size: 1.5KB (1K x 12)
• Program Memory Type: EPROM, UV
• Ram Size: 25 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 18-CDIP (0.300", 7.62mm) Window
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

SUBWF
Syntax:
Operands:
Operation:
Status Affected: C, DC, Z
Encoding:
Description:
Words:
Cycles:
Example 1:
Example 2:
Example 3:
2002 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 W from f
[ label ]
0
d
(f) – (W)
Subtract (2’s complement method)
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
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
f
[0,1]
3
2
?
1
2
1
2
2
?
0
2
1
1
2
?
0xFF
2
0
31
SUBWF f,d
10df
REG1, 1
dest)
; result is positive
; result is zero
; result is negative
ffff
Preliminary
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
[ label ] SWAPF f,d
0
d
(f<3:0>)
(f<7:4>)
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
=
=
Swap Nibbles in f
Load TRIS Register
[ label ] TRIS
f = 5, 6 or 7
(W)
TRIS register 'f' (f = 5, 6, or 7) is
loaded with the contents of the W
register.
1
1
TRIS
0011
0000
=
=
=
f
[0,1]
0xA5
0xA5
31
0xA5
0xA5
0x5A
TRIS register f
PORTB
PIC16C5X
10df
0000
(dest<7:4>);
(dest<3:0>)
DS30453D-page 59
f
ffff
0fff