PIC18F26K80-E/SS Microchip Technology Inc., PIC18F26K80-E/SS Datasheet - Page 131
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PIC18F26K80-E/SS
Manufacturer Part Number
PIC18F26K80-E/SS
Description
28 SSOP .209IN TUBE, ECAN, 64KB FLASH, 4KB RAM, 16 MIPS, 12-BIT ADC, CTMU
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F46K80-IPT.pdf
(628 pages)
Specifications of PIC18F26K80-E/SS
A/d Inputs
8-Channel, 12-Bit
Comparators
2
Cpu Speed
16 MIPS
Eeprom Memory
256 Bytes
Input Output
24
Interface
I2C/SPI/UART/USART
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin SSOP
Programmable Memory
64K Bytes
Ram Size
3.6K Bytes
Speed
64 MHz
Temperature Range
–40 to 125 °C
Timers
2-8-bit, 3-16-bit
Voltage, Range
1.8-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
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6.4.3.3
Indirect Addressing operations that target other FSRs
or virtual registers represent special cases. For
example, using an FSR to point to one of the virtual
registers will not result in successful operations.
As a specific case, assume that the FSR0H:FSR0L
registers contain FE7h, the address of INDF1.
Attempts to read the value of the INDF1, using INDF0
as an operand, will return 00h. Attempts to write to
INDF1, using INDF0 as the operand, will result in a
NOP .
On the other hand, using the virtual registers to write to
an FSR pair may not occur as planned. In these cases,
the value will be written to the FSR pair, but without any
incrementing or decrementing. Thus, writing to INDF2
or POSTDEC2 will write the same value to the
FSR2H:FSR2L.
Since the FSRs are physical registers mapped in the
SFR space, they can be manipulated through all direct
operations. Users should proceed cautiously when
working on these registers, however, particularly if their
code uses Indirect Addressing.
Similarly, operations by Indirect Addressing are gener-
ally permitted on all other SFRs. Users should exercise
the appropriate caution, so that they do not inadvertently
change settings that might affect the operation of the
device.
6.5
The operation of program memory is unaffected by the
use of the extended instruction set.
Enabling the extended instruction set adds five
additional two-word commands to the existing PIC18
instruction set: ADDFSR , CALLW , MOVSF , MOVSS and
SUBFSR . These instructions are executed as described
in
2011 Microchip Technology Inc.
Section 6.2.4 “Two-Word Instructions”
Program Memory and the
Extended Instruction Set
Operations by FSRs on FSRs
.
Preliminary
PIC18F66K80 FAMILY
DS39977C-page 131
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