PIC18LF27J53-I/SO Microchip Technology, PIC18LF27J53-I/SO Datasheet - Page 106
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PIC18LF27J53-I/SO
Manufacturer Part Number
PIC18LF27J53-I/SO
Description
IC PIC MCU 128KB FLASH 28SOIC
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18LF24J10-ISS.pdf
(32 pages)
2.PIC18F26J13-ISS.pdf
(496 pages)
3.PIC18F26J53-ISS.pdf
(586 pages)
4.PIC18F26J53-ISS.pdf
(12 pages)
Specifications of PIC18LF27J53-I/SO
Core Size
8-Bit
Program Memory Size
128KB (64K x 16)
Core Processor
PIC
Speed
48MHz
Connectivity
I²C, LIN, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Type
FLASH
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 2.75 V
Data Converters
A/D 10x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Controller Family/series
PIC18
Cpu Speed
48MHz
Digital Ic Case Style
SOIC
Supply Voltage Range
1.8V To 3.6V
Embedded Interface Type
I2C, SPI, USART
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
- PIC18LF24J10-ISS PDF datasheet
- PIC18F26J13-ISS PDF datasheet #2
- PIC18F26J53-ISS PDF datasheet #3
- PIC18F26J53-ISS PDF datasheet #4
- Current page: 106 of 586
- Download datasheet (6Mb)
PIC18F47J53 FAMILY
6.6
Enabling the PIC18 extended instruction set (XINST
Configuration bit = 1) significantly changes certain
aspects of data memory and its addressing. Specifically,
the use of the Access Bank for many of the core PIC18
instructions is different. This is due to the introduction of
a new addressing mode for the data memory space.
This mode also alters the behavior of Indirect
Addressing using FSR2 and its associated operands.
What does not change is just as important. The size of
the data memory space is unchanged, as well as its
linear addressing. The SFR map remains the same.
Core PIC18 instructions can still operate in both Direct
and Indirect Addressing mode; inherent and literal
instructions do not change at all. Indirect Addressing
with FSR0 and FSR1 also remains unchanged.
6.6.1
Enabling the PIC18 extended instruction set changes
the behavior of Indirect Addressing using the FSR2
register pair and its associated file operands. Under
proper conditions, instructions that use the Access
Bank, that is, most bit and byte-oriented instructions,
can invoke a form of Indexed Addressing using an
offset specified in the instruction. This special address-
ing mode is known as Indexed Addressing with Literal
Offset or Indexed Literal Offset mode.
When using the extended instruction set, this
addressing mode requires the following:
• The use of the Access Bank is forced (‘a’ = 0);
• The file address argument is less than or equal to
DS39964B-page 106
and
5Fh.
Data Memory and the Extended
Instruction Set
INDEXED ADDRESSING WITH
LITERAL OFFSET
Preliminary
Under these conditions, the file address of the
instruction is not interpreted as the lower byte of an
address (used with the BSR in Direct Addressing) or as
an 8-bit address in the Access Bank. Instead, the value
is interpreted as an offset value to an Address Pointer
specified by FSR2. The offset and the contents of
FSR2 are added to obtain the target address of the
operation.
6.6.2
Any of the core PIC18 instructions that can use Direct
Addressing are potentially affected by the Indexed
Literal Offset Addressing mode. This includes all byte
and bit-oriented instructions, or almost one-half of the
standard PIC18 instruction set. Instructions that only
use Inherent or Literal Addressing modes are
unaffected.
Additionally, byte and bit-oriented instructions are not
affected if they use the Access Bank (Access RAM bit is
‘1’) or include a file address of 60h or above. Instructions
meeting these criteria will continue to execute as before.
A comparison of the different possible addressing
modes when the extended instruction set is enabled is
provided in Figure 6-9.
Those who desire to use byte or bit-oriented instruc-
tions in the Indexed Literal Offset mode should note the
changes to assembler syntax for this mode. This is
described in more detail in Section 29.2.1 “Extended
Instruction Syntax”.
INSTRUCTIONS AFFECTED BY
INDEXED LITERAL OFFSET MODE
2010 Microchip Technology Inc.
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