PIC16C77-04/P Microchip Technology, PIC16C77-04/P Datasheet - Page 161

• Manufacturer Part Number: PIC16C77-04/P
• Description: IC MCU OTP 8KX14 A/D PWM 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C77-04/P

• Core Size: 8-Bit
• Program Memory Size: 14KB (8K x 14)
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Core Processor: PIC
• Speed: 4MHz
• Connectivity: I²C, SPI, UART/USART
• Number Of I /o: 33
• Program Memory Type: OTP
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Data Converters: A/D 8x8b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Controller Family/series: PIC16C
• No. Of I/o's: 33
• Ram Memory Size: 368Byte
• Cpu Speed: 4MHz
• No. Of Timers: 3
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 368 B
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: 0 C
• On-chip Adc: 8 bit, 8 Channel
• Data Rom Size: 368 B
• A/d Bit Size: 8 bit
• A/d Channels Available: 8
• Height: 4.95 mm
• Length: 53.21 mm
• Supply Voltage (max): 6 V
• Supply Voltage (min): 4 V
• Width: 14.73 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 444-1001 - DEMO BOARD FOR PICMICRO MCU
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

SUBWF
Syntax:
Operands:
Operation:
Status Affected: C, DC, Z
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example 1:
Example 2:
Example 3:
1997 Microchip Technology Inc.
Subtract W from f
[ label ]
0
d
(f) - (W)
Subtract (2’s complement method) W reg-
ister 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
Before Instruction
After Instruction
Before Instruction
After Instruction
Before Instruction
After Instruction
Decode
Q1
00
f
[0,1]
REG1
W
C
Z
REG1
W
C
Z
REG1
W
C
Z
REG1
W
C
Z
REG1
W
C
Z
REG1
W
C
Z
127
register 'f'
SUBWF f,d
REG1,1
0010
destination)
Read
Q2
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
3
2
?
?
1
2
1; result is positive
0
2
2
?
?
0
2
1; result is zero
1
1
2
?
?
0xFF
2
0; result is negative
0
Process
dfff
data
Q3
destination
Write to
ffff
Q4
SWAPF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example
TRIS
Operands:
Syntax:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Example
Swap Nibbles in f
[ label ] SWAPF f,d
0
d
(f<3:0>)
(f<7:4>)
None
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
Before Instruction
After Instruction
Load TRIS Register
[ label ]
5
(W)
The instruction is supported for code
compatibility with the PIC16C5X prod-
ucts. Since TRIS registers are read-
able and writable, the user can directly
address them.
1
1
To maintain upward compatibility
with future PIC16CXX products, do
not use this instruction.
Decode
SWAPF REG,
Q1
00
00
f
f
[0,1]
127
7
TRIS register f;
PIC16C7X
TRIS
register 'f'
0000
REG1
REG1
W
1110
(destination<7:4>),
(destination<3:0>)
Read
Q2
DS30390E-page 161
f
0
0110
Process
dfff
=
=
=
data
Q3
0xA5
0xA5
0x5A
0fff
destination
ffff
Write to
Q4