PIC16F688-I/STG Microchip Technology, PIC16F688-I/STG Datasheet - Page 562

• Manufacturer Part Number: PIC16F688-I/STG
• Description: IC PIC MCU FLASH 4KX14 14TSSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F688-I/STG

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 12
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 14-TSSOP
• For Use With: XLT14SS-1 - SOCKET TRANSITION 14DIP/14SSOPAC162061 - HEADER INTRFC MPLAB ICD2 20PINAC162056 - HEADER INTERFACE ICD2 16F688
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PICmicro MID-RANGE MCU FAMILY
DS31029A-page 29-40
SUBWF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example 1:
Case 2:
Case 3:
Case 1:
Q1
Decode
SUBWF
Before Instruction
After Instruction
Before Instruction
After Instruction
Before Instruction
After Instruction
Q2
register 'f'
[ label ]
0
d
(f) - (W)
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 reg-
ister 'f'.
1
1
C, DC, Z
Read
00
f
[0,1]
127
REG1= 3
W
C
Z
REG1= 1
W
C
Z
REG1= 2
W
C
Z
REG1= 0
W
C
Z
REG1= 1
W
C
Z
REG1= 0xFF
W
C
Z
REG1,1
Subtract W from f
Q3
SUBWF f,d
destination
= 2
= x
= x
= 2
= 1
= 0
= 2
= x
= x
= 2
= 1
= 1
= 2
= x
= x
= 2
= 0
= 0
0010
Process
data
dfff
Q4
destination
Write to
; result is positive
; result is zero
; result is negative
ffff
1997 Microchip Technology Inc.