PIC18F452-E/PT Microchip Technology, PIC18F452-E/PT Datasheet - Page 237

• Manufacturer Part Number: PIC18F452-E/PT
• Description: IC MCU CMOS 40MHZ 16K FLSH44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F452-E/PT

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 34
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 1.5KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Package: 44TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 34
• Interface Type: I2C/SPI/USART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LFSR
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
© 2006 Microchip Technology Inc.
Q Cycle Activity:
After Instruction
Decode
Decode
FSR2H
FSR2L
Q1
Read literal
Read literal
Load FSR
[ label ]
0
0
k
None
The 12-bit literal 'k' is loaded into
the file select register pointed to
by 'f'.
2
2
LFSR 2, 0x3AB
'k' MSB
'k' LSB
1110
1111
Q2
=
=
f
k
FSRf
2
4095
0x03
0xAB
LFSR f,k
1110
0000
Process
Process
Data
Data
Q3
k
00ff
7
kkk
Write literal
'k' to FSRfL
literal 'k'
MSB to
FSRfH
Write
Q4
k
kkkk
11
kkk
MOVF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Decode
REG
W
REG
W
Q1
register 'f'
Move f
[ label ]
0
d
a
f
N, Z
The contents of register 'f' are
moved to a destination dependent
upon the status of ’d’. If 'd' is 0, the
result is placed in W. If 'd' is 1, the
result is placed back in register 'f'
(default). Location 'f' can be any-
where in the 256 byte bank. If ’a’ is
0, the Access Bank will be
selected, overriding the BSR value.
If ‘a’ = 1, then the bank will be
selected as per the BSR value
(default).
1
1
MOVF
Read
0101
Q2
=
=
=
=
f
[0,1]
[0,1]
dest
PIC18FXX2
255
0x22
0xFF
0x22
0x22
REG, 0, 0
MOVF
00da
Process
Data
Q3
DS39564C-page 235
f [,d [,a]
ffff
Write W
Q4
ffff