PIC16F648A-I/ML Microchip Technology, PIC16F648A-I/ML Datasheet - Page 126

• Manufacturer Part Number: PIC16F648A-I/ML
• Description: IC MCU FLASH 4KX14 EEPROM 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F648A-I/ML

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Controller Family/series: PIC16F
• No. Of I/o's: 16
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 256Byte
• Cpu Speed: 20MHz
• No.: RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNXLT28QFN3 - SOCKET TRAN ICE 18DIP/28QFNI3DBF648 - BOARD DAUGHTER ICEPIC3AC164033 - ADAPTER 28QFN TO 18DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Data Converters: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F627A/628A/648A
DS40044D-page 124
MOVWF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
NOP
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Move W to f
[ label ]
0
(W)
None
00
Move data from W register to
register ‘f’.
1
1
MOVWF
Before Instruction
After Instruction
No Operation
[ label ]
None
No operation
None
00
No operation.
1
1
NOP
f
REG1 = 0xFF
W
REG1 = 0x4F
W
127
(f)
0000
REG1
0000
MOVWF
NOP
= 0x4F
= 0x4F
1fff
0xx0
f
ffff
0000
OPTION
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
RETFIE
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Load Option Register
[ label ]
None
(W)
None
00
The contents of the W register are
loaded in the OPTION register.
This instruction is supported for
code compatibility with PIC16C5X
products. Since OPTION is a
readable/writable register, the
user can directly address it. Using
only register instruction such as
MOVWF.
1
1
To maintain upward compatibil-
ity with future PICmicro
products, do not use this
instruction.
Return from Interrupt
[ label ]
None
TOS
1
None
00
Return from Interrupt. Stack is
POPed and Top-of-Stack (TOS)
is loaded in the PC. Interrupts
are enabled by setting Global
Interrupt Enable bit, GIE
(INTCON<7>). This is a two-
cycle instruction.
1
2
RETFIE
After Interrupt
© 2005 Microchip Technology Inc.
GIE
PC = TOS
GIE = 1
OPTION
PC,
0000
OPTION
0000
RETFIE
0110
0000
®
0010
1001