PIC18F4620-I/PT Microchip Technology Inc., PIC18F4620-I/PT Datasheet - Page 315
PIC18F4620-I/PT
Manufacturer Part Number
PIC18F4620-I/PT
Description
44 Pin, 64 KB Flash, 3968 RAM, 36 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F4620-IPT.pdf
(390 pages)
Specifications of PIC18F4620-I/PT
A/d Inputs
13-Channel, 10-Bit
Comparators
2
Cpu Speed
10 MIPS
Eeprom Memory
1024 Bytes
Input Output
36
Interface
SPI/I2C/USART
Memory Type
Flash
Number Of Bits
8
Package Type
44-pin TQFP
Programmable Memory
64K Bytes
Ram Size
4K Bytes
Speed
40 MHz
Timers
1-8 bit, 3-16 bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4620-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18F4620-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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SUBFSR
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
2004 Microchip Technology Inc.
Q Cycle Activity:
Before Instruction
After Instruction
Decode
FSR2
FSR2
Q1
=
=
register ‘f’
SUBFSR f, k
0
f
FSR(f – k)
None
The 6-bit literal ‘k’ is subtracted from
the contents of the FSR specified
by ‘f’.
1
1
SUBFSR 2, 23h
Subtract Literal from FSR
Read
1110
Q2
03FFh
03DCh
[ 0, 1, 2 ]
k
63
1001
Process
FSR(f)
Data
Q3
ffkk
destination
PIC18F2525/2620/4525/4620
Write to
kkkk
Q4
Preliminary
SUBULNK
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Operation
Decode
FSR2
PC
FSR2
PC
Q1
No
Subtract Literal from FSR2 and Return
SUBULNK k
0
FSR2 – k
(TOS)
The 6-bit literal ‘k’ is subtracted from the
contents of the FSR2. A RETURN is then
executed by loading the PC with the TOS.
The instruction takes two cycles to
execute; a NOP is performed during the
second cycle.
This may be thought of as a special case of
the SUBFSR instruction, where f = 3 (binary
‘11’); it operates only on FSR2.
1
2
1110
=
=
=
=
k
register ‘f’
Operation
SUBULNK 23h
Read
63
Q2
No
03FFh
0100h
03DCh
(TOS)
PC
FSR2
1001
Operation
Process
Data
Q3
No
DS39626B-page 313
11kk
destination
Operation
Write to
kkkk
Q4
No
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