PIC16F1829-E/P Microchip Technology, PIC16F1829-E/P Datasheet - Page 348

• Manufacturer Part Number: PIC16F1829-E/P
• Description: 14 KB Flash, 1K Bytes RAM, 32 MHz Int. Osc, 18 I/0, Enhanced Mid Range Core 20 P
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ mTouch™ 16Fr

Specifications of PIC16F1829-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: *
• Processor Series: PIC16F182x
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 18
• Number Of Timers: 5
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F/LF1825/1829
RETFIE
Syntax:
Operands:
Operation:
Status Affected:
Description:
Words:
Cycles:
Example:
RETLW
Syntax:
Operands:
Operation:
Status Affected:
Description:
Words:
Cycles:
Example:
TABLE
DS41440A-page 350
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
Preliminary
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
 2010 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