PIC16F872-E/SS Microchip Technology, PIC16F872-E/SS Datasheet - Page 559

• Manufacturer Part Number: PIC16F872-E/SS
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,28PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F872-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SSOP
• Package: 28SSOP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 22
• Interface Type: I2C/SPI
• On-chip Adc: 5-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1997 Microchip Technology Inc.
RRF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example 1
Example 2
Q1
Decode
Case 1:
Case 2:
Q2
register 'f'
[ label ]
0
d
See description below
C
The contents of register 'f' are rotated one bit to the right through the Carry
Flag. If 'd' is 0 the result is placed in the W register. If 'd' is 1 the result is
placed back in register 'f'.
1
1
Before Instruction
After Instruction
Before Instruction
After Instruction
Before Instruction
After Instruction
Read
RRF
RRF
00
f
[0,1]
Section 29. Instruction Set
127
REG1= 1110 0110
W
C
REG1= 1110 0110
W
C
W
FSR = 0xC2
Contents of Address (FSR) = 0011 1010
C
W
FSR = 0xC2
Contents of Address (FSR) = 1001 1101
C
W
FSR = 0xC2
Contents of Address (FSR) = 0011 1001
C
W
FSR = 0xC2
Contents of Address (FSR) = 0001 1100
C
Rotate Right f through Carry
RRF f,d
INDF, 1
1100
Q3
Process
= xxxx xxxx
= 0
= 0111 0011
= 0
= xxxx xxxx
= 1
= 0x17
= 0
= xxxx xxxx
= 0
= 0x17
= 1
data
REG1,0
dfff
Q4
destination
Write to
C
ffff
Register f
DS31029A-page 29-37
29