PIC18F25J50-I/SP Microchip Technology, PIC18F25J50-I/SP Datasheet - Page 84
![IC PIC MCU FLASH 32K 2V 28-DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18F25J50-I/SP
Manufacturer Part Number
PIC18F25J50-I/SP
Description
IC PIC MCU FLASH 32K 2V 28-DIP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18LF24J10-ISS.pdf
(32 pages)
2.PIC18LF24J50-ISS.pdf
(554 pages)
3.PIC18LF24J50-ISS.pdf
(12 pages)
4.PIC18F24J50-ISS.pdf
(18 pages)
5.PIC18F26K20-ISO.pdf
(430 pages)
Specifications of PIC18F25J50-I/SP
Program Memory Type
FLASH
Program Memory Size
32KB (16K x 16)
Package / Case
28-DIP (0.300", 7.62mm)
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
16
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2.15 V ~ 3.6 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3776 B
Interface Type
EUSART/I2C/SPI
Maximum Clock Frequency
48 MHz
Number Of Timers
5
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, DM183022, DM183032, DV164136, MA180024
Minimum Operating Temperature
- 40 C
On-chip Adc
10-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F25J50-I/SP
Manufacturer:
MICROCHIP
Quantity:
1 001
- PIC18LF24J10-ISS PDF datasheet
- PIC18LF24J50-ISS PDF datasheet #2
- PIC18LF24J50-ISS PDF datasheet #3
- PIC18F24J50-ISS PDF datasheet #4
- PIC18F26K20-ISO PDF datasheet #5
- Current page: 84 of 430
- Download datasheet (7Mb)
PIC18F2XK20/4XK20
5.4.3.1
At the core of indirect addressing are three sets of reg-
isters: FSR0, FSR1 and FSR2. Each represents a pair
of 8-bit registers, FSRnH and FSRnL. Each FSR pair
holds a 12-bit value, therefore the four upper bits of the
FSRnH register are not used. The 12-bit FSR value can
address the entire range of the data memory in a linear
fashion. The FSR register pairs, then, serve as pointers
to data memory locations.
Indirect addressing is accomplished with a set of
Indirect File Operands, INDF0 through INDF2. These
can be thought of as “virtual” registers: they are
mapped in the SFR space but are not physically
implemented. Reading or writing to a particular INDF
register actually accesses its corresponding FSR
register pair. A read from INDF1, for example, reads
the data at the address indicated by FSR1H:FSR1L.
Instructions that use the INDF registers as operands
actually use the contents of their corresponding FSR as
a pointer to the instruction’s target. The INDF operand
is just a convenient way of using the pointer.
Because indirect addressing uses a full 12-bit address,
data RAM banking is not necessary. Thus, the current
contents of the BSR and the Access RAM bit have no
effect on determining the target address.
FIGURE 5-10:
DS41303D-page 82
Using an instruction with one of the
indirect addressing registers as the
operand....
...uses the 12-bit address stored in
the FSR pair associated with that
register....
...to determine the data memory
location to be used in that operation.
In this case, the FSR1 pair contains
ECCh. This means the contents of
location ECCh will be added to that
of the W register and stored back in
ECCh.
FSR Registers and the INDF
Operand
INDIRECT ADDRESSING
x x x x 1 1 1 0
7
ADDWF, INDF1, 1
Preliminary
FSR1H:FSR1L
0
7
1 1 0 0 1 1 0 0
5.4.3.2
In addition to the INDF operand, each FSR register pair
also has four additional indirect operands. Like INDF,
these are “virtual” registers which cannot be directly
read or written. Accessing these registers actually
accesses the location to which the associated FSR
register pair points, and also performs a specific action
on the FSR value. They are:
• POSTDEC: accesses the location to which the
• POSTINC: accesses the location to which the
• PREINC: automatically increments the FSR by 1,
• PLUSW: adds the signed value of the W register
In this context, accessing an INDF register uses the
value in the associated FSR register without changing
it. Similarly, accessing a PLUSW register gives the
FSR value an offset by that in the W register; however,
neither W nor the FSR is actually changed in the
operation. Accessing the other virtual registers
changes the value of the FSR register.
FSR points, then automatically decrements the
FSR by 1 afterwards
FSR points, then automatically increments the
FSR by 1 afterwards
then uses the location to which the FSR points in
the operation
(range of -127 to 128) to that of the FSR and uses
the location to which the result points in the
operation.
FSR Registers and POSTINC,
POSTDEC, PREINC and PLUSW
0
© 2008 Microchip Technology Inc.
FFFh
E00h
F00h
000h
100h
200h
300h
Data Memory
Bank 13
Bank 14
Bank 15
through
Bank 0
Bank 1
Bank 2
Bank 3
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