PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 301

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: 64 PIN, 64 KB FLASH, 3840 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6621-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 54
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 64K Bytes
• Ram Size: 3.8K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

LFSR
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
 2005 Microchip Technology Inc.
Q Cycle Activity:
After Instruction
Decode
Decode
FSR2H
FSR2L
Q1
Read literal
Read literal
=
=
Load FSR
[ label ]
0 ≤ f ≤ 2
0 ≤ k ≤ 4095
k → FSRf
None
The 12-bit literal ‘k’ is loaded into the
file select register pointed to by ‘f’.
2
2
‘k’ MSB
LFSR 2, 0x3AB
‘k’ LSB
1110
1111
Q2
0x03
0xAB
LFSR f,k
1110
0000
Process
Process
Data
Data
Q3
k
00ff
7
kkk
‘k’ to FSRfL
Write literal
literal ‘k’
MSB to
FSRfH
PIC18F6525/6621/8525/8621
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 ≤ f ≤ 255
d ∈ [0,1]
a ∈ [0,1]
f → dest
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 anywhere 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
0x22
0xFF
0x22
0x22
REG, 0, 0
MOVF
00da
Process
Data
Q3
DS39612B-page 299
f [,d [,a]
ffff
Write W
Q4
ffff