PIC16F1827-E/P Microchip Technology Inc., PIC16F1827-E/P Datasheet - Page 336

• Manufacturer Part Number: PIC16F1827-E/P
• Description: 7 KB Flash, 384 bytes RAM, 32 MHz Int. Osc, 16 I/0, Enhanced Mid Range Core
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F1827-E/P

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 8 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 16
• Interface: CAN/I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 18-pin PDIP
• Programmable Memory: 7K Bytes
• Ram Size: 384 Bytes
• Speed: 32 MHz
• Timers: 4-8-bit, 1-16-bit
• Voltage, Range: 1.8-5.5 V
• Standby Current (pic16lf182x): 30 nA @ 1.8 V, Typical

PIC16(L)F1826/27
RETFIE
Syntax:
Operands:
Operation:
Status Affected:
Description:
Words:
Cycles:
Example:
RETLW
Syntax:
Operands:
Operation:
Status Affected:
Description:
Words:
Cycles:
Example:
TABLE
DS41391D-page 336
Return from Interrupt
[ label ]
None
TOS  PC,
1  GIE
None
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
After Interrupt
Return with literal in W
[ label ]
0  k  255
k  (W);
TOS  PC
None
The W register is loaded with the eight
bit literal ‘k’. The program counter is
loaded from the top of the stack (the
return address). This is a two-cycle
instruction.
1
2
Before Instruction
After Instruction
RETFIE
CALL TABLE;W contains table
•
•
•
ADDWF PC ;W = offset
RETLW k1 ;Begin table
RETLW k2 ;
•
•
•
RETLW kn ; End of table
;offset value
;W now has table value
RETFIE
RETLW k
PC =
GIE =
W
W
=
=
TOS
1
0x07
value of k8
RETURN
Syntax:
Operands:
Operation:
Status Affected:
Description:
RLF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Words:
Cycles:
Example:
TOS  PC
Return from subroutine. The stack is
Return from Subroutine
[ label ]
None
None
POPed and the top of the stack (TOS)
is loaded into the program counter.
This is a two-cycle instruction.
Rotate Left f through Carry
[ label ]
0  f  127
d  [0,1]
See description below
C
The contents of register ‘f’ are rotated
one bit to the left through the Carry
flag. If ‘d’ is ‘0’, the result is placed in
the W register. If ‘d’ is ‘1’, the result is
stored back in register ‘f’.
1
1
Before Instruction
After Instruction
RLF
 2011 Microchip Technology Inc.
RETURN
C
REG1
C
REG1
W
C
RLF
REG1,0
Register f
f,d
=
=
=
=
=
1110 0110
0
1110 0110
1100 1100
1