PIC16F785-I/SO Microchip Technology, PIC16F785-I/SO Datasheet - Page 133

• Manufacturer Part Number: PIC16F785-I/SO
• Description: IC PIC MCU FLASH 2KX14 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F785-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 20-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: RS- 232/USB
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DV164120, DM163029
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SO1-1 - SOCKET TRANS ICE 20DIP TO 20SOICXLT18SO-1 - SOCKET TRANSITION 18SOIC 300MILAC162060 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOIC
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

 2004 Microchip Technology Inc.
SUBWF
Syntax:
Operands:
Operation:
Status
Affected:
Encoding:
Description:
Words:
Cycles:
Example 1:
Example 2:
Example 3:
Subtract W from f
[ label ]
0
d
(f) - (W)
C, DC, Z
00
Subtract (2’s complement method)
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
Before Instruction
After Instruction
Before Instruction
After Instruction
Before Instruction
After Instruction
f
[0,1]
REG1 = 3
W
C
REG1 = 1
W
C
Z
DC
REG1 = 2
W
C
REG1 = 0
W
C
Z
REG1 = 1
W
C
REG1 = 0xFF
W
C
Z
127
SUBWF f,d
0010
REG1, 1
= 2
= ?
= 2
= 1; result is positive
= 0
= 1
= 2
= ?
= 2
= 1; result is zero
= DC = 1
= 2
= ?
= 2
= 0; result is negative
= DC = 0
dest)
dfff
ffff
Preliminary
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
SWAPF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
TRIS
Load TRIS Register
[ label ] TRIS
5
(W)
None
00
The instruction is supported for
code compatibility with the
PIC16C5X products. Since TRIS
registers are readable and writ-
able, the user can directly
address them.
1
1
To maintain upward compatibil-
ity with future PICmicro
products, do not use this
instruction.
Swap Nibbles in f
[ label ]
0
d
(f<3:0>)
(f<7:4>)
None
00
The upper and lower nibbles of
register ‘f’ are exchanged. If ‘d’ is
0 the result is placed in W regis-
ter. If ‘d’ is 1 the result is placed in
register ‘f’.
1
1
SWAPF
Before Instruction
After Instruction
f
f
[0,1]
PIC16F785
6
REG1 = 0xA5
REG1 = 0xA5
W
TRIS register f;
127
0000
SWAPF f,d
1110
REG1, 0
(dest<7:4>),
(dest<3:0>)
= 0x5A
DS41249A-page 131
f
0110
dfff
®
0fff
ffff